UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM10-Q
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30,December 31, 2020
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from ________to _________
Commission file number 001-38312
eght-20201231_g1.jpg
8x8, INC.
(Exact name of Registrant as Specified in its Charter)
Delaware77-0142404
(State or Other Jurisdiction of Incorporation or Organization) (I.R.S. Employer Identification Number)
675 Creekside Way
Campbell, CA 95008
(Address of principal executive offices)
(408) 727-1885
(Registrant's telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading SymbolName of each exchange on which registered
COMMON STOCK, PAR VALUE $.001 PER SHAREEGHTNew York Stock Exchange
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file reports), and (2) has been subject to such filing requirements for the past 90 days.    ☒ Yes      ☐ No   
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).     Yes  ☒     No  ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filerAccelerated filer
Non-accelerated filerSmaller reporting company
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes    ☐        No    ☒
The number of shares of the Registrant's Common Stock outstanding as of OctoberJanuary 22, 20202021 was 106,321,438.107,486,374.


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8X8, INC
FORM 10-Q
FOR THE QUARTER ENDED SEPTEMBER 30,DECEMBER 31, 2020
TABLE OF CONTENTS
Page No.
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Forward-Looking Statements and Risk Factors
Statements contained in this quarterly report on Form 10-Q, or Quarterly Report, regarding our expectations, beliefs, estimates, intentions or strategies are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Any statements contained herein that are not statements of historical fact may be deemed to be forward-looking statements. For example, words such as "may," "will," "should," "estimates," "predicts," "potential," "continue," "strategy," "believes," "anticipates," "plans," "expects," "intends," and similar expressions are intended to identify forward-looking statements. These forward-looking statements include, but are not limited to, statements regarding: industry trends; our number of customers; average annual service revenue per customer; cost of service revenue and other revenue; research and development expenses; hiring of employees; sales and marketing expenses; general and administrative expenses in future periods; and the impact of the COVID-19 pandemic. You should not place undue reliance on these forward-looking statements. Actual results and trends may differ materially from historical results and those projected in any such forward-looking statements depending on a variety of factors. These factors include, but are not limited to:
the impact of economic downturns on us and our customers, including the impacts of the COVID-19 pandemic;
customer cancellations and rate of customer churn;churn or downsell;
benefits that can be realized from migrating customers from legacy products, including reducing the number of supported platforms and improved customer churn;
customer acceptance and demand for our cloud communication and collaboration services, including voice, contact center, video, messaging, and communication application programming interfaces ("APIs");
competitive market pressures, and any changes in the competitive dynamics of the markets in which we compete;
market acceptance of new or existing services and features we may offer from time to time;
the quality and reliability of our products and services;
our ability to scale our business;
customer acquisition costs;
our reliance on a network of channel partners to provide substantial new customer demand;
upfront investments, including the cost to support new strategic initiatives such as our cloud migration program with value-added resellers ("VARs") and other partners, to acquire more customers may not result in additional revenue from new or existing customers;
timing and extent of improvements in operating results from increased spending in marketing, sales, and research and development;
the amount and timing of costs associated with recruiting, training and integrating new employees and retaining existing employees;
our reliance on infrastructure of third-party network services providers;
risk of failure in our physical infrastructure;
risk of defects or bugs in our software;
risk of cybersecurity breaches;
our ability to maintain the compatibility of our software with third-party applications and mobile platforms;
continued compliance with industry standards and regulatory requirements, including privacy, in the United States and foreign countries in which we make our cloud software and services solutions available, and the costs of such compliance;
introduction and adoption of our cloud software solutions in markets outside of the United States;
risks relating to the acquisition and integration of businesses we have acquired (for example, Wavecell Pte. Ltd.) or may acquire in the future, particularly if the acquired business operates in a different product market space from us or is based in a region where we do not have significant operations;
risks related to our senior convertible notes and the related capped call transactions;
implementation and effects of new accounting standards and policies in our reported financial results; and
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potential future intellectual property infringement claims and other litigation that could adversely impact our business and operating results.
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Please refer to the "Risk Factors" section of our annual report on Form 10-K for the fiscal year ended March 31, 2020, as modified by the "Risk Factors" section of our Quarterly Report for the three-month periodthree months ended June 30, 2020, and subsequent Securities and Exchange Commission ("SEC") filings for additional factors that could materially affect our financial performance. All forward-looking statements included in this Quarterly Report are based on information available to us on the date hereof, and we assume no obligation to update any such forward-looking statements. Readers are urged to carefully review and consider the various disclosures made in this Quarterly Report, which attempts to advise interested parties of the risks and factors that may affect our business, financial condition, results of operations, and prospects.
Our fiscal year ends on March 31, of each calendar year. Each reference to a fiscal year in this Quarterly Report, refers to the fiscal year ended March 31, of the calendar year indicated (for example, fiscal 2021 refers to the fiscal year ending on March 31, 2021). Unless the context requires otherwise, references to "we," "us," "our," "8x8" and the "Company" refer to 8x8, Inc. and its consolidated subsidiaries.
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PART I. FINANCIAL INFORMATION
ITEM 1. FINANCIAL STATEMENTS
8X8, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(Unaudited)
(In thousands)
September 30, 2020March 31, 2020December 31, 2020March 31, 2020
ASSETSASSETS  ASSETS  
Current assets:Current assets:  Current assets:  
Cash and cash equivalentsCash and cash equivalents$121,848 $137,394 Cash and cash equivalents$106,877 $137,394 
Restricted cash, currentRestricted cash, current6,917 10,376 Restricted cash, current6,996 10,376 
Short-term investmentsShort-term investments31,381 33,458 Short-term investments41,738 33,458 
Accounts receivable, netAccounts receivable, net42,971 37,811 Accounts receivable, net50,404 37,811 
Deferred sales commission costs, currentDeferred sales commission costs, current26,334 22,444 Deferred sales commission costs, current28,684 22,444 
Other current assetsOther current assets39,088 35,679 Other current assets39,565 35,679 
Total current assetsTotal current assets268,539 277,162 Total current assets274,264 277,162 
Property and equipment, netProperty and equipment, net96,185 94,382 Property and equipment, net94,480 94,382 
Operating lease, right-of-use assetsOperating lease, right-of-use assets72,841 78,963 Operating lease, right-of-use assets70,443 78,963 
Intangible assets, netIntangible assets, net19,959 24,001 Intangible assets, net18,426 24,001 
GoodwillGoodwill130,152 128,300 Goodwill132,067 128,300 
Restricted cash, non-currentRestricted cash, non-current8,641 8,641 Restricted cash, non-current8,562 8,641 
Long-term investmentsLong-term investments6,181 16,083 Long-term investments3,878 16,083 
Deferred sales commission costs, non-currentDeferred sales commission costs, non-current64,061 53,307 Deferred sales commission costs, non-current69,859 53,307 
Other assetsOther assets20,685 19,802 Other assets20,832 19,802 
Total assetsTotal assets$687,244 $700,641 Total assets$692,811 $700,641 
LIABILITIES AND STOCKHOLDERS' EQUITYLIABILITIES AND STOCKHOLDERS' EQUITYLIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:Current liabilities:Current liabilities:
Accounts payableAccounts payable$35,278 $40,261 Accounts payable$32,337 $40,261 
Accrued compensationAccrued compensation28,698 22,656 Accrued compensation29,993 22,656 
Accrued taxesAccrued taxes11,574 10,251 Accrued taxes14,299 10,251 
Operating lease liabilities, currentOperating lease liabilities, current9,498 5,875 Operating lease liabilities, current12,691 5,875 
Deferred revenue, currentDeferred revenue, current9,452 7,105 Deferred revenue, current18,015 7,105 
Other accrued liabilitiesOther accrued liabilities21,913 37,277 Other accrued liabilities20,419 37,277 
Total current liabilitiesTotal current liabilities116,413 123,425 Total current liabilities127,754 123,425 
Operating lease liabilities, non-currentOperating lease liabilities, non-current87,462 92,452 Operating lease liabilities, non-current85,379 92,452 
Convertible senior notes, netConvertible senior notes, net299,853 291,537 Convertible senior notes, net304,111 291,537 
Other liabilities, non-currentOther liabilities, non-current9,057 2,496 Other liabilities, non-current8,164 2,496 
Total liabilitiesTotal liabilities512,785 509,910 Total liabilities525,408 509,910 
Commitments and contingencies (Note 8)Commitments and contingencies (Note 8)Commitments and contingencies (Note 8)00
Stockholders' equity:Stockholders' equity:Stockholders' equity:
Common stockCommon stock106 103 Common stock107 103 
Additional paid-in capitalAdditional paid-in capital688,116 625,474 Additional paid-in capital716,820 625,474 
Accumulated other comprehensive lossAccumulated other comprehensive loss(7,967)(12,176)Accumulated other comprehensive loss(3,503)(12,176)
Accumulated deficitAccumulated deficit(505,796)(422,670)Accumulated deficit(546,021)(422,670)
Total stockholders' equityTotal stockholders' equity174,459 190,731 Total stockholders' equity167,403 190,731 
Total liabilities and stockholders' equityTotal liabilities and stockholders' equity$687,244 $700,641 Total liabilities and stockholders' equity$692,811 $700,641 
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.
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8X8, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(Unaudited)
(In thousands, except per share amounts)
Three Months Ended September 30,Six Months Ended September 30,Three Months Ended December 31,Nine Months Ended December 31,
2020201920202019 2020201920202019
Service revenueService revenue$120,942 $101,345 $235,125 $191,184 Service revenue$127,107 $110,363 $362,232 $301,547 
Other revenueOther revenue8,191 8,172 15,815 15,008 Other revenue9,578 8,204 25,393 23,212 
Total revenue Total revenue129,133 109,517 250,940 206,192 Total revenue136,685 118,567 387,625 324,759 
Operating expenses:Operating expenses:Operating expenses:
Cost of service revenueCost of service revenue44,803 35,813 85,799 61,113 Cost of service revenue47,044 40,786 132,843 101,899 
Cost of other revenueCost of other revenue11,693 13,884 22,830 26,275 Cost of other revenue13,364 15,433 36,194 41,708 
Research and developmentResearch and development21,567 19,434 43,061 37,765 Research and development23,702 19,870 66,763 57,635 
Sales and marketingSales and marketing61,399 57,895 121,549 111,494 Sales and marketing63,986 63,099 185,535 174,593 
General and administrativeGeneral and administrative22,769 20,435 48,559 40,042 General and administrative23,844 22,547 72,403 62,589 
Total operating expenses Total operating expenses162,231 147,461 321,798 276,689  Total operating expenses171,940 161,735 493,738 438,424 
Loss from operationsLoss from operations(33,098)(37,944)(70,858)(70,497)Loss from operations(35,255)(43,168)(106,113)(113,665)
Other expense, netOther expense, net(5,178)(2,732)(9,103)(4,296)Other expense, net(4,669)(3,623)(13,772)(7,919)
Loss before provision for income taxesLoss before provision for income taxes(38,276)(40,676)(79,961)(74,793)Loss before provision for income taxes(39,924)(46,791)(119,885)(121,584)
Provision for income taxesProvision for income taxes137 256 365 404 Provision for income taxes301 280 666 684 
Net lossNet loss$(38,413)$(40,932)$(80,326)$(75,197)Net loss$(40,225)$(47,071)$(120,551)$(122,268)
Net loss per share:Net loss per share:Net loss per share:
Basic and dilutedBasic and diluted$(0.37)$(0.42)$(0.77)$(0.77)Basic and diluted$(0.38)$(0.47)$(1.15)$(1.23)
Weighted-average common shares outstanding:Weighted-average common shares outstanding:Weighted-average common shares outstanding:
Basic and dilutedBasic and diluted104,620 98,353 104,116 97,356 Basic and diluted106,641 99,922 104,961 99,082 
 The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.
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8X8, INC.
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS
(Unaudited)
(In thousands)
Three Months Ended September 30,Six Months Ended September 30,Three Months Ended December 31,Nine Months Ended December 31,
2020201920202019 2020201920202019
Net lossNet loss$(38,413)$(40,932)$(80,326)$(75,197)Net loss$(40,225)$(47,071)$(120,551)$(122,268)
Other comprehensive income (loss), net of taxOther comprehensive income (loss), net of taxOther comprehensive income (loss), net of tax
Unrealized gain (loss) on investments in securitiesUnrealized gain (loss) on investments in securities(43)(3)379 118 Unrealized gain (loss) on investments in securities(73)(12)306 106 
Foreign currency translation adjustmentForeign currency translation adjustment2,945 (3,253)3,830 (3,905)Foreign currency translation adjustment4,537 4,587 8,367 682 
Comprehensive lossComprehensive loss$(35,511)$(44,188)$(76,117)$(78,984)Comprehensive loss$(35,761)$(42,496)$(111,878)$(121,480)
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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8X8, INC.
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
(Unaudited)
(In thousands, except shares)
Common StockAdditional
Paid-in
Capital
Accumulated
Other
Comprehensive
Loss
Accumulated
Deficit
Total Common StockAdditional
Paid-in
Capital
Accumulated
Other
Comprehensive
Loss
Accumulated
Deficit
Total
SharesAmount SharesAmount
Balance at March 31, 2020Balance at March 31, 2020103,178,621 $103 $625,474 $(12,176)$(422,670)$190,731 Balance at March 31, 2020103,178,621 $103 $625,474 $(12,176)$(422,670)$190,731 
Adjustment to opening balance for change in accounting principleAdjustment to opening balance for change in accounting principle— — — — (2,800)(2,800)Adjustment to opening balance for change in accounting principle— — — — (2,800)(2,800)
Issuance of common stock under stock plans, less withholdingIssuance of common stock under stock plans, less withholding688,414 (67)— — (66)Issuance of common stock under stock plans, less withholding688,414 (67)— — (66)
Stock-based compensation expenseStock-based compensation expense— — 23,118 — — 23,118 Stock-based compensation expense— — 23,118 — — 23,118 
Issuance of common stock related to acquisitionIssuance of common stock related to acquisition— — 8,489 — — 8,489 Issuance of common stock related to acquisition— — 8,489 — — 8,489 
Unrealized investment gainUnrealized investment gain— — — 422 — 422 Unrealized investment gain— — — 422 — 422 
Foreign currency translation adjustmentForeign currency translation adjustment— — — 885 — 885 Foreign currency translation adjustment— — — 885 — 885 
Net lossNet loss— — — — (41,913)(41,913)Net loss— — — — (41,913)(41,913)
Balance at June 30, 2020Balance at June 30, 2020103,867,035 104 657,014 (10,869)(467,383)178,866 Balance at June 30, 2020103,867,035 104 657,014 (10,869)(467,383)178,866 
Issuance of common stock under stock plansIssuance of common stock under stock plans2,119,196 4,706 — — 4,708 Issuance of common stock under stock plans2,119,196 4,706 — — 4,708 
Stock-based compensation expenseStock-based compensation expense— — 26,396 — — 26,396 Stock-based compensation expense— — 26,396 — — 26,396 
Unrealized investment gain/lossUnrealized investment gain/loss— — — (43)— (43)Unrealized investment gain/loss— — — (43)— (43)
Foreign currency translation adjustmentForeign currency translation adjustment— — — 2,945 — 2,945 Foreign currency translation adjustment— — — 2,945 — 2,945 
Net lossNet loss— — — — (38,413)(38,413)Net loss— — — — (38,413)(38,413)
Balance at September 30, 2020Balance at September 30, 2020105,986,231 $106 $688,116 $(7,967)$(505,796)$174,459 Balance at September 30, 2020105,986,231 106 688,116 (7,967)(505,796)174,459 
Issuance of common stock under stock plansIssuance of common stock under stock plans1,149,752 1,346 — — 1,347 
Stock-based compensation expenseStock-based compensation expense— — 27,358 — — 27,358 
Unrealized investment lossUnrealized investment loss— — — (73)— (73)
Foreign currency translation adjustmentForeign currency translation adjustment— — — 4,537 — 4,537 
Net lossNet loss— — — — (40,225)(40,225)
Balance at December 31, 2020Balance at December 31, 2020107,135,983 $107 $716,820 $(3,503)$(546,021)$167,403 

 Common StockAdditional
Paid-in
Capital
Accumulated
Other
Comprehensive
Loss
Accumulated
Deficit
Total
 SharesAmount
Balance at March 31, 201996,119,888 $96 $506,949 $(7,353)$(250,302)$249,390 
Issuance of common stock under stock plans, less withholding451,308 1,493 — — 1,494 
Stock-based compensation expense— — 14,059 — — 14,059 
Unrealized investment gain— — — 121 — 121 
Foreign currency translation adjustment— — — (652)— (652)
Net loss— — — — (34,265)(34,265)
Balance at June 30, 201996,571,196 97 522,501 (7,884)(284,567)230,147 
Issuance of common stock under stock plans, less withholding1,761,483 (790)— — (788)
Stock-based compensation expense— — 17,867 — — 17,867 
Issuance of common stock related to acquisitions1,476,009 35,838 — 35,839 
Unrealized investment loss— — — (3)— (3)
Foreign currency translation adjustment— — — (3,253)— (3,253)
Net loss— — — — (40,932)(40,932)
Balance at September 30, 201999,808,688 $100 $575,416 $(11,140)$(325,499)$238,877 
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 Common StockAdditional
Paid-in
Capital
Accumulated
Other
Comprehensive
Loss
Accumulated
Deficit
Total
 SharesAmount
Balance at March 31, 201996,119,888 $96 $506,949 $(7,353)$(250,302)$249,390 
Issuance of common stock under stock plans, less withholding451,308 1,493 — — 1,494 
Stock-based compensation expense— — 14,059 — — 14,059 
Unrealized investment gain— — — 121 — 121 
Foreign currency translation adjustment— — — (652)— (652)
Net loss— — — — (34,265)(34,265)
Balance at June 30, 201996,571,196 97 522,501 (7,884)(284,567)230,147 
Issuance of common stock under stock plans, less withholding1,761,483 (790)— — (788)
Stock-based compensation expense— — 17,867 — — 17,867 
Issuance of common stock related to acquisitions1,476,009 35,838 — — 35,839 
Unrealized investment loss— — — (3)— (3)
Foreign currency translation adjustment— — — (3,253)— (3,253)
Net loss— — — — (40,932)(40,932)
Balance at September 30, 201999,808,688 100 575,416 (11,140)(325,499)238,877 
Issuance of common stock under stock plans, less withholding976,272 139 — — 140 
Stock-based compensation expense— — 19,881 — — 19,881 
Equity component of convertible senior notes, net of issuance costs— — 3,089 — — 3,089 
Unrealized investment loss— — — (12)— (12)
Foreign currency translation adjustment— — — 4,587 — 4,587 
Net loss— — — — (47,071)(47,071)
Balance at December 31, 2019100,784,960 $101 $598,525 $(6,565)$(372,570)$219,491 
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.
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8X8, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(Unaudited)
(In thousands)
Six Months Ended September 30,Nine Months Ended December 31,
20202019 20202019
Cash flows from operating activities:Cash flows from operating activities:  Cash flows from operating activities:  
Net lossNet loss$(80,326)$(75,197)Net loss$(120,551)$(122,268)
Adjustments to reconcile net loss to net cash used in operating activities:Adjustments to reconcile net loss to net cash used in operating activities:Adjustments to reconcile net loss to net cash used in operating activities:
DepreciationDepreciation5,690 4,599 Depreciation8,529 6,801 
Amortization of intangible assetsAmortization of intangible assets4,055 3,827 Amortization of intangible assets5,590 6,149 
Amortization of capitalized softwareAmortization of capitalized software12,893 8,242 Amortization of capitalized software20,021 13,263 
Amortization of debt discount and issuance costsAmortization of debt discount and issuance costs8,317 6,397 Amortization of debt discount and issuance costs12,574 9,987 
Amortization of deferred sales commission costsAmortization of deferred sales commission costs12,764 8,718 Amortization of deferred sales commission costs20,040 13,805 
Allowance for credit lossesAllowance for credit losses2,994 944 Allowance for credit losses3,950 1,323 
Operating lease expense, net of accretionOperating lease expense, net of accretion7,585 6,234 Operating lease expense, net of accretion11,469 10,676 
Stock-based compensationStock-based compensation48,101 30,988 Stock-based compensation74,940 50,305 
OtherOther467 690 Other517 1,348 
Changes in assets and liabilities:Changes in assets and liabilities:Changes in assets and liabilities:
Accounts receivable, netAccounts receivable, net(6,290)(2,563)Accounts receivable, net(13,277)(8,776)
Deferred sales commission costsDeferred sales commission costs(26,811)(20,498)Deferred sales commission costs(41,187)(33,651)
Other current and non-current assetsOther current and non-current assets(7,532)(17,418)Other current and non-current assets(8,939)(24,780)
Accounts payable and accrualsAccounts payable and accruals1,350 (400)Accounts payable and accruals(338)7,876 
Deferred revenueDeferred revenue3,675 922 Deferred revenue11,797 5,106 
Net cash used in operating activities Net cash used in operating activities(13,068)(44,515) Net cash used in operating activities(14,865)(62,836)
Cash flows from investing activities:Cash flows from investing activities:Cash flows from investing activities:
Purchases of property and equipmentPurchases of property and equipment(4,171)(7,138)Purchases of property and equipment(4,975)(22,853)
Purchase of businessesPurchase of businesses(3,459)(58,741)Purchase of businesses(3,459)(58,853)
Cost of capitalized softwareCost of capitalized software(16,158)(14,339)Cost of capitalized software(22,858)(22,784)
Proceeds from maturities of investmentsProceeds from maturities of investments30,071 8,545 Proceeds from maturities of investments40,771 16,195 
Proceeds from sales of investmentsProceeds from sales of investments219 30,639 Proceeds from sales of investments219 33,117 
Purchases of investmentsPurchases of investments(17,968)(18,890)Purchases of investments(36,840)(29,658)
Net cash used in investing activities Net cash used in investing activities(27,142)(84,836)
Net cash used in investing activities(11,466)(59,924)
Cash flows from financing activities:Cash flows from financing activities:Cash flows from financing activities:
Finance lease paymentsFinance lease payments(70)(227)Finance lease payments(74)(312)
Tax-related withholding of common stockTax-related withholding of common stock(69)(5,426)Tax-related withholding of common stock(69)(6,186)
Proceeds from issuance of common stock under employee stock plansProceeds from issuance of common stock under employee stock plans4,710 6,134 Proceeds from issuance of common stock under employee stock plans6,058 7,035 
Purchases of capped callsPurchases of capped calls(9,288)
Net proceeds from issuance of convertible senior notesNet proceeds from issuance of convertible senior notes74,593 
Net cash provided by financing activities Net cash provided by financing activities5,915 65,842 
Net cash provided by financing activities4,571 481 
Effects of currency exchange rates on cash, cash equivalent, and restricted cashEffects of currency exchange rates on cash, cash equivalent, and restricted cash958 511 Effects of currency exchange rates on cash, cash equivalent, and restricted cash2,116 958 
Net decrease in cash, cash equivalents, and restricted cashNet decrease in cash, cash equivalents, and restricted cash(19,005)(103,447)Net decrease in cash, cash equivalents, and restricted cash(33,976)(80,872)
Cash, cash equivalents, and restricted cash at the beginning of the periodCash, cash equivalents, and restricted cash at the beginning of the period156,411 284,683 Cash, cash equivalents, and restricted cash at the beginning of the period156,411 284,683 
Cash, cash equivalents, and restricted cash at the end of the periodCash, cash equivalents, and restricted cash at the end of the period$137,406 $181,236 Cash, cash equivalents, and restricted cash at the end of the period$122,435 $203,811 
Supplemental and non-cash disclosures:Supplemental and non-cash disclosures:Supplemental and non-cash disclosures:
Income taxes paidIncome taxes paid$406 $361 Income taxes paid$761 $719 
Interest paidInterest paid$906 $647 Interest paid$906 $647 
Right of use assets obtained in exchange for new or modified operating lease liabilitiesRight of use assets obtained in exchange for new or modified operating lease liabilities$$62,832 Right of use assets obtained in exchange for new or modified operating lease liabilities$$64,869 
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Reconciliation of cash, cash equivalents, and restricted cash to the condensed consolidated balance sheets (in thousands):
September 30,December 31,
2020201920202019
Cash and cash equivalentsCash and cash equivalents$121,848 $162,219 Cash and cash equivalents$106,877 $184,794 
Restricted cash, currentRestricted cash, current6,917 3,459 Restricted cash, current6,996 3,459 
Restricted cash, non-currentRestricted cash, non-current8,641 15,558 Restricted cash, non-current8,562 15,558 
Total cash, cash equivalents, and restricted cashTotal cash, cash equivalents, and restricted cash$137,406 $181,236 Total cash, cash equivalents, and restricted cash$122,435 $203,811 
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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8X8, INC.
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
1. DESCRIPTION OF BUSINESS
8x8, Inc. ("8x8" or the "Company") was incorporated in California in February 1987, and was reincorporated in Delaware in December 1996.
The Company is a leading cloud provider of enterprise Software-as-a-Service ("SaaS") communications solutions that enable businesses of all sizes to communicate faster and smarter across voice, video meetings, chat, and contact centers, transforming both employee and customer experiences with communications that work simply, integrate seamlessly, and perform reliably. From one proprietary cloud technology platform, customers have access to unified communications, team collaboration, video conferencing, contact center, data and analytics, and other services. Substantially all revenue is generated from communication services subscriptions and platform usage. The Company also generates revenue from sales of hardware and professional services, which are complementary to the delivery of our integrated technology platform.
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
BASIS OF PRESENTATION AND CONSOLIDATION
The accompanying interim condensed consolidated financial statements are unaudited and have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") and regulations of the Securities and Exchange Commission ("SEC") regarding interim financial reporting. The March 31, 2020 year-end condensed consolidated balance sheet datadisclosures in this document were derived from audited consolidated financial statements and doesdo not include all of the disclosures required by GAAP. These condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements as of and for the fiscal year ended March 31, 2020, and notes thereto included in the Company's fiscal 2020 annual reportAnnual Report on Form 10-K.10-K ("Form 10-K"). There have beenwere no material changes induring the three and nine months ended December 31, 2020, to our significant accounting policies as described in the Company's annual report on Form 10-K for the fiscal year ended March 31, 2020 during the three and six months ended September 30, 2020, except for the accounting policies described belowherein that were updated as a result of adopting Accounting Standards Update ("ASU") 2016-03, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, further amended by various ASUs, and ASU 2018-15, Intangibles-Goodwill and Other-Internal Use Software (Subtopic 350-40). The results of operations and cash flows for the interim periods included in these condensed consolidated financial statements are not necessarily indicative of the results to be expected for any future periods or the entire fiscal year.
The unaudited interim condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The Company conducts its operations through 1 reportable segment.
In the opinion of the Company's management, these interim condensed consolidated financial statements reflect all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair statement of the Company's financial position, results of operations, and cash flows for the periods presented.
USE OF ESTIMATES
The preparation of the condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and equity, and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, the Company evaluates its estimates, including, but not limited to, those related to allowance for credit losses, returns reserve for expected customer credits or cancellations, fair value of and/or evaluation for impairment of goodwill and other long-lived assets, capitalization of internally developed software, benefit period for deferred sales commission costs, stock-based compensation expense, incremental borrowingdiscount rate used to calculate operating lease liabilities, income and sales tax liabilities, fair value of convertible senior notes, litigation, and other contingencies. The Company bases its estimates on known facts and circumstances, historical experience, and various other assumptions. Actual results could differ from those estimates under different assumptions or conditions.
RECLASSIFICATIONS AND OTHER CHANGES
During the fourth quarter of fiscal 2020, the Company determined that presenting service revenue as revenue from the Company's core communication services would provide transparency and clarity to the users of the financial statements. As such, the Company reclassified certain revenue and cost of revenue on its condensed consolidated statement of operations for the three and sixnine months ended September 30,December 31, 2019. Professional services revenue and cost of professional services revenue previously reported in service revenue and cost of service revenue are now reported in other revenue and cost of other revenue. Product revenue and cost of product revenue are also now reported in other revenue and cost of other revenue. The reclassifications did not have any impact on total revenue, consolidated net loss, or cash flows.
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In addition, certain prior year amounts in the condensed consolidated statements of cash flows have been reclassified to conform with the current year presentation.
RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS
In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016‑13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, as amended, which replaces the existing impairment model with a forward-looking expected loss method. Under this update, on initial recognition and at each reporting period, an entity is required to recognize an allowance that reflects the entity's current estimate of credit losses expected to be incurred over the life of the financial instrument. For trade receivables, loans, and other financial instruments, an entity is required to use a forward-looking expected loss model to recognize credit losses that are probable. The Company adopted ASU 2016-13 on a modified retrospective basis as of April 1, 2020, through a cumulative-effect adjustment to the Company's beginning accumulated deficit balance; the impact of the adoption was not material to the Company's consolidated financial statements. Credit losses are not expected to be significant based on historical collection trends, the financial condition of the Company’s customers, and external market factors, including those related to the COVID-19 pandemic. The Company will continue to actively monitor the impact of the recent COVID-19 pandemic on expected credit losses.
In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820), which makes modifications to disclosure requirements on fair value measurements. The Company adopted ASU 2018-13 on April 1, 2020, and the2020. The impact of the adoption was immaterial to the Company's consolidated financial statements.
In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other-Internal Use Software (Subtopic 350-40), which reduces complexity for the accounting for costs of implementing a cloud computing service arrangement. The Company adopted this guidance on a prospective basis effective April 1, 2020. The impact of the adoption of this guidance did not have a material impact onwas immaterial to the Company's consolidated financial statements.
RECENT ACCOUNTING PRONOUNCEMENTS NOT YET ADOPTED
In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740), which enhances and simplifies various aspects of the income tax accounting guidance, including requirements such as tax basis step-up in goodwill obtained in a transaction that is not a business combination, ownership changes in investments, and interim-period accounting for enacted changes in tax law. The amendment will be effective for public companies with fiscal years beginning after December 15, 2020, which is fiscal 2022 for the Company; early adoption is permitted. The Company is currently assessing the impact of this pronouncement to its consolidated financial statements.
In August 2020, the FASB issued ASU 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40), which simplifies accounting for convertible instruments by eliminating two of the three accounting models available for convertible debt instruments and convertible preferred stock. The guidance also addresses how convertible instruments are accounted for in the diluted earnings per share calculation. The guidance is effective for fiscal years beginning after December 15, 2021, which is fiscal 2023 for the Company; early adoption is permitted. The Company is currently assessing the impact of this pronouncement to its consolidated financial statements.
3. REVENUE RECOGNITION
Disaggregation of Revenue
The Company disaggregates itspresents disaggregated revenue by geographic regions. Seeregions in Note 13 for more information.13. Geographical Information.
Contract Balances
The following table provides information about receivables, contract assets, and deferred revenues from contracts with customers (in thousands):
 September 30, 2020March 31, 2020
Accounts receivable, net$42,971 $37,811 
Contract assets, current, net (included in Other current assets)$11,712 $10,425 
Contract assets, non-current, net (included in Other assets)$14,837 $13,698 
Deferred revenue, current$9,452 $7,105 
Deferred revenue, non-current (included in Other liabilities, non-current)$2,678 $1,119 
Changes in the contract assets and deferred revenue balances during the six months ended September 30, 2020 are as follows (in thousands):
 December 31, 2020March 31, 2020
Accounts receivable, net$50,404 $37,811 
Contract assets, current, net (included in Other current assets)$12,002 $10,425 
Contract assets, non-current, net (included in Other assets)$15,688 $13,698 
Deferred revenue, current$18,015 $7,105 
Deferred revenue, non-current (included in Other liabilities, non-current)$2,768 $1,119 
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 September 30, 2020March 31, 2020Change
Contract assets$26,549 $24,123 $2,426 
Deferred revenue$12,130 $8,224 $3,906 
Changes in the contract assets and deferred revenue balances during the nine months ended December 31, 2020 are as follows (in thousands):
 December 31, 2020March 31, 2020Change
Contract assets$27,690 $24,123 $3,567 
Deferred revenue$20,783 $8,224 $12,559 
The changeincrease in contract assets was primarily driven by the recognition of revenue that hashad not yet been billed, net of amounts billed during the period, and the reserve for current estimate of credit losses. The increase in deferred revenue was due to billings in advance of performance obligations being satisfied, net of revenue recognized for services rendered during the period. Revenue of $1.3$0.7 million and $5.0$5.7 million was recognized during the three and sixnine months ended September 30,December 31, 2020, respectively, which werewas included in the deferred revenue balance at the beginning of the period.
Remaining Performance Obligations
The Company's subscription terms typically range from one to five years. Contract revenue from remaining performance obligations that hashad not yet been recognized as of September 30,December 31, 2020, was approximately $330 million from remaining performance obligations.$365 million. This excludes contracts with an original expected length of one year or less. The Company expects to recognize revenue on most of the remaining performance obligations over the next 36 months.
Deferred Sales Commission Costs
Amortization of deferred sales commission costs was $6.7$7.3 million and $4.5$5.1 million for the three months ended September 30,December 31, 2020 and 2019, respectively, and $12.8$20.1 million and $8.7$13.8 million, for the sixnine months ended September 30,December 31, 2020 and 2019, respectively. There were no material write-offs relative to theof deferred sales commission costs capitalized during these periods.
4. FAIR VALUE MEASUREMENTS
Cash, cash equivalents, restricted cash, and available-for-sale investments wereare as follows (in thousands):
As of September 30, 2020Amortized CostsGross
Unrealized Gain
Gross
Unrealized Loss
Estimated Fair ValueCash and
Cash Equivalents
Restricted Cash (Current & Non-Current)Short-Term InvestmentsLong-Term Investments
Cash$32,611 $— $— $32,611 $25,694 $6,917 $— $— 
Level 1:
Money market funds94,354 — — 94,354 94,354 — — — 
Treasury securities6,185 68 6,253 — — 6,253 
     Subtotal133,150 68 133,218 120,048 6,917 6,253 
Level 2:
Certificate of deposit8,641 — — 8,641 — 8,641 — 
Commercial paper4,399 4,399 1,800 — 2,599 
Corporate debt28,586 124 28,710 — — 22,529 6,181 
     Subtotal41,626 124 41,750 1,800 8,641 25,128 6,181 
     Total assets$174,776 $192 $$174,968 $121,848 $15,558 $31,381 $6,181 
As of March 31, 2020Amortized CostsGross
Unrealized Gain
Gross
Unrealized Loss
Estimated Fair ValueCash and
Cash Equivalents
Restricted Cash (Current & Non-Current)Short-Term InvestmentsLong-Term Investments
As of December 31, 2020As of December 31, 2020Amortized CostsGross
Unrealized Gain
Gross
Unrealized Loss
Estimated Fair ValueCash and
Cash Equivalents
Restricted Cash (Current & Non-Current)Short-Term InvestmentsLong-Term Investments
CashCash$31,378 $— $— $31,378 $21,002 $10,376 $— $— Cash$40,656 $— $— $40,656 $33,739 $6,917 $— $— 
Level 1:Level 1:Level 1:
Money market fundsMoney market funds110,796 — — 110,796 110,796 — — — Money market funds71,232 — — 71,232 71,232 — — — 
Treasury securitiesTreasury securities6,192 116 6,308 — — — 6,308 Treasury securities6,181 42 6,223 — — 6,223 
Subtotal Subtotal148,366 116 148,482 131,798 10,376 — 6,308 Subtotal118,069 42 118,111 104,971 6,917 6,223 
Level 2:Level 2:Level 2:
Certificate of depositCertificate of deposit8,641 — — 8,641 — 8,641 — Certificate of deposit8,641 — — 8,641 — 8,641 — 
Commercial paperCommercial paper14,979 14,985 5,596 — 9,389 — Commercial paper16,194 (1)16,193 1,300 — 14,893 — 
Corporate debtCorporate debt34,153 32 (341)33,844 — — 24,069 9,775 Corporate debt25,028 79 (1)25,106 606 — 20,622 3,878 
Subtotal Subtotal57,773 38 (341)57,470 5,596 8,641 33,458 9,775 Subtotal49,863 79 (2)49,940 1,906 8,641 35,515 3,878 
Total assets Total assets$206,139 $154 $(341)$205,952 $137,394 $19,017 $33,458 $16,083 Total assets$167,932 $121 $(2)$168,051 $106,877 $15,558 $41,738 $3,878 
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As of March 31, 2020Amortized CostsGross
Unrealized Gain
Gross
Unrealized Loss
Estimated Fair ValueCash and
Cash Equivalents
Restricted Cash (Current & Non-Current)Short-Term InvestmentsLong-Term Investments
Cash$31,378 $— $— $31,378 $21,002 $10,376 $— $— 
Level 1:
Money market funds110,796 — — 110,796 110,796 — — — 
Treasury securities6,192 116 6,308 — — — 6,308 
Subtotal148,366 116 148,482 131,798 10,376 — 6,308 
Level 2:
Certificate of deposit8,641 — — 8,641 — 8,641 — — 
Commercial paper14,979 14,985 5,596 — 9,389 — 
Corporate debt34,153 32 (341)33,844 — — 24,069 9,775 
Subtotal57,773 38 (341)57,470 5,596 8,641 33,458 9,775 
Total assets$206,139 $154 $(341)$205,952 $137,394 $19,017 $33,458 $16,083 
Certificate of deposit represents the Company's letter of credits securing leases for office facilities, and the balance of which is included in restrictedRestricted cash, current and Restricted cash, non-current in on the Company's condensed consolidated balance sheet.Condensed Consolidated Balance Sheet.
The Company considers its investments as available to support its current operations and it has classified all investments as available-for-sale securities. AsThe Company does not intend to sell any of September 30, 2020, forits investments that wereare in unrealized loss positions the Company does not have the intent to sell anyand, as of these investments andDecember 31, 2020, has determined that it is not more likely than not that it will be required to sell any of these investments before recovery of the entire amortized cost basis.
The Company regularly reviews the changes to the rating of its securities at the individual security level by rating agencies as well asand reasonably monitors the surrounding economic conditions to assess the risk of expected credit losses. As of September 30,December 31, 2020, the Company did not have any risk of expected credit losses.
As of September 30,December 31, 2020, the estimated fair value of the Company's outstanding convertible senior notes (the "Notes") was $336.7$527.8 million, which was determined based on the closing price for the Notes on the last trading day of the reporting period andperiod. The estimated fair value is considered to becategorized within Level 2 inof the fair value hierarchy due to limited trading activity of the Notes.
5. BUSINESS COMBINATIONS
In July 2019, the Company purchased all of the outstanding shares and equity interests of Wavecell, Pte. Ltd. During the three months endedAs of September 30, 2020 the fair value of all assets acquired and liabilities assumed in the transaction were finalized, and did not result in any additional adjustments to the preliminary purchase price allocation in the current quarter.finalized. Of the $10.4 million cash and 394,515 shares (equivalent to $8.5 million at acquisition) that were held back, the Company released $3.5 million of cash and 116,505 shares on the one-year anniversary of the acquisition. The remaining balance is expected to bewas released in January 2021.
6. INTANGIBLE ASSETS AND GOODWILL
Intangible Assets
The carrying value of intangible assets consisted of the following (in thousands):
September 30, 2020March 31, 2020 December 31, 2020March 31, 2020
Gross
Carrying
Amount
Accumulated
Amortization
Net
Carrying
Amount
Gross
Carrying
Amount
Accumulated
Amortization
Net
Carrying
Amount
Gross
Carrying
Amount
Accumulated
Amortization
Net
Carrying
Amount
Gross
Carrying
Amount
Accumulated
Amortization
Net
Carrying
Amount
Developed technologyDeveloped technology$33,952 $(19,182)$14,770 $33,932 $(16,312)$17,620 Developed technology$33,969 $(20,391)$13,578 $33,932 $(16,312)$17,620 
Customer relationshipsCustomer relationships11,614 (6,425)5,189 11,409 (5,412)5,997 Customer relationships11,927 (7,079)4,848 11,409 (5,412)5,997 
Trade and domain namesTrade and domain names986 (986)983 (599)384 Trade and domain names989 (989)983 (599)384 
Total acquired identifiable intangible assetsTotal acquired identifiable intangible assets$46,552 $(26,593)$19,959 $46,324 $(22,323)$24,001 Total acquired identifiable intangible assets$46,885 $(28,459)$18,426 $46,324 $(22,323)$24,001 
As of September 30,December 31, 2020, the weighted average remaining useful life forof developed technology and customer relationships was 4.84.7 years and 5.65.5 years, respectively.
At September 30, 2020, the expected future amortization expense of these intangible assets is as follows (in thousands):
Remainder of 2021$2,829 
20224,708 
20233,156 
20242,851 
20252,851 
Thereafter3,564 
Total$19,959 
Goodwill
The following table provides a summary of the changes in the carrying amounts of goodwill (in thousands):
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As of December 31, 2020, the expected future amortization expense of the intangible assets was as follows (in thousands):
Remainder of 2021$1,296 
20224,708 
20233,156 
20242,851 
20252,851 
Thereafter3,564 
Total$18,426 
Goodwill
The following table provides a summary of the change in the carrying amount of goodwill (in thousands):
Balance at March 31, 2020$128,300 
Foreign currency translation adjustments1,8523,767 
Balance at September 30,December 31, 2020$130,152132,067 
7. LEASES
Operating Leases
The Company primarily leases facilities for office and data center space under non-cancellable operating leases for its U.S. and international locations thatunder non-cancellable operating leases. The leases expire at various dates through 2030.
The following table provides balance sheet information related to leases as of September 30,December 31, 2020 (in thousands):
September 30, 2020March 31, 2020 December 31, 2020March 31, 2020
AssetsAssetsAssets
Operating lease, right-of-use assetsOperating lease, right-of-use assets$72,841 $78,963 Operating lease, right-of-use assets$70,443 $78,963 
LiabilitiesLiabilitiesLiabilities
Operating lease liabilities, currentOperating lease liabilities, current$9,498 $5,875 Operating lease liabilities, current$12,691 $5,875 
Operating lease liabilities, non-currentOperating lease liabilities, non-current87,462 92,452 Operating lease liabilities, non-current85,379 92,452 
Total operating lease liabilitiesTotal operating lease liabilities$96,960 $98,327 Total operating lease liabilities$98,070 $98,327 
The components of lease expense were as follows (in thousands):
Three Months Ended September 30,Six Months Ended September 30,Three Months Ended December 31,Nine Months Ended December 31,
20202019202020192020201920202019
Operating lease expenseOperating lease expense$3,833 $4,156 $7,583 $6,241 Operating lease expense$3,886 $4,436 $11,469 $10,677 
Variable lease expenseVariable lease expense$857 $229 $1,639 $438 Variable lease expense$729 $434 $2,368 $872 
Short-term lease expense was immaterial for the three and sixnine months ended September 30,December 31, 2020 and 2019.
Operating cash outflowCash outflows from operating lease was $4.2leases were $6.3 million and $4.5$7.2 million, respectively, for the sixnine months ended September 30,December 31, 2020 and 2019.
The following table presents supplemental information for the sixnine months ended September 30,December 31, 2020 (in thousands, except for weighted average):
Weighted average remaining lease term8.68.5 years
Weighted average discount rate4.0%
The following table presents maturity of lease liabilities under the Company's non-cancellable operating leases as of September 30, 2020 (in thousands):
Remainder of 2021$5,631 
202216,193 
202315,007 
202411,766 
202511,429 
Thereafter58,122 
Total lease payments$118,148 
Less: imputed interest(19,542)
Less: lease incentives receivable(1,646)
Present value of lease liabilities$96,960 
Lease Assignment
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The following table presents future payments of lease liabilities under the Company's non-cancellable operating leases as of December 31, 2020 (in thousands):
Remainder of 2021$3,586 
202216,382 
202315,182 
202411,835 
202511,497 
Thereafter58,190 
Total lease payments116,672 
Less: imputed interest(18,602)
Present value of lease liabilities$98,070 
Lease Assignment
In the fourth quarter of fiscal 2018, the Company entered into a 132-month lease agreement (the "Agreement") with CAP Phase I, a Delaware limited liability company (the "Landlord"), to rent approximately 162,000 square feet of office space in a new building in San Jose, California. The lease term began on January 1, 2019. On April 30, 2019, due to the Company's rapid growth and greater than anticipated future space needs, the Company entered into an assignment and assumption (the "Assignment") of the Agreement with the Landlord, and Roku Inc., a Delaware corporation ("Roku"), whereby the Company assigned to Roku the Agreement. Pursuant to the Assignment, the Company expects to be released from all of its obligations under the lease and related standby letter of credit by the end of the Company’s fiscal year ending March 31, 2022, or shortly thereafter. The Company also expects to receive the reimbursement of base rent and direct expenses from Roku by the end of the Company’s fiscal year ending March 31, 20222021, in accordance with the Assignment.
The obligationsAmounts related to the Agreement are not included in the right-of-use asset or lease liabilities as of September 30,December 31, 2020 or March 31, 2020. The remaining obligations related to the Assignment of $4.8$2.8 million and the termination fee of $0.8 million are recorded in otherOther accrued liabilities and otherOther liabilities, non-current, respectively, inand the Company's condensed consolidated balance sheet. The expected receivable of $6.9$6.4 million due in February 2021 is recorded in otherOther current assets, in on the Company's condensed consolidated balance sheet.Condensed Consolidated Balance Sheets as of both December 31, 2020 and March 31, 2020.
8. COMMITMENTS AND CONTINGENCIES
Other Commitments, Indemnifications, and Contingencies
From time to time, the Company receives inquiries from federal and various state and municipal taxing agencies with respect to the remittance of sales, use, telecommunications, excise, payroll, and income taxes. Several jurisdictions are currently conducting tax audits of the Company's records. The Company collects taxes from its customers or has accrued for taxes that it believes are required to be remitted. The amountsAmounts that have been remitted have historically been within the accruals established by the Company. The Company adjusts its accrued taxes when facts relating to specific exposures warrant such adjustment. The Company continues to conduct periodic review of the taxability of certain of its services that may be subject to sales, use, telecommunications, or other similar indirect taxes in certain jurisdictions. As of September 30,December 31, 2020 and March 31, 2020, the Company had accrued contingent indirect tax liabilities of $4.6 million and $4.5 million.million, respectively.
Legal Proceedings
The Company, from time to time, may be involved in a variety of claims, lawsuits, investigations, and other proceedings, including patent infringement claims, employment litigation, regulatory compliance matters, and contractual disputes, that can arise in the normal course of the Company's operations. The Company accruesrecognizes a liabilityprovision when management believes information available prior to the issuance of the financial statements indicates it is probable a loss has been incurred as of the date of the financial statements and the amount of loss can be reasonably estimated. The Company adjusts its accrualsthe amount of the provision to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case. Legal costs are expensed as incurred.
As of September 30,December 31, 2020, the Company does not have any material provisions for any such lawsuits, claims and proceedings and believes it is not probable that a loss had been incurred. Litigation is inherently unpredictable and subject to significant uncertainties. While there can be no assurances that favorable final outcomes will be obtained, the Company believes it has valid defenses with respect to legal matters pending against it. Future litigation could be costly to defend, could impose significant burdens on employees and cause the diversion of management's attention, and could, upon resolution, have a material adverse effect on the Company's business, results of operations, financial condition, and cash flows.
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9. CONVERTIBLE SENIOR NOTES AND CAPPED CALL
Convertible Senior Notes
In February 2019, the Company issued $287.5 million aggregate principal amount of 0.50% convertible senior notes (the "Initial Notes") due 2024 in a private placement, including the exercise in full of the initial purchasers' option to purchase additional notes. The Initial Notes are senior unsecured obligations of the Company and interest is payable semiannually in arrears on February 1 and August 1 of each year, beginning on August 1, 2019. The Initial Notes will mature on February 1, 2024, unless earlier repurchased, redeemed, or converted. The total net proceeds from the debt offering, after deducting initial purchase discounts, debt issuance costs, and costs of the capped call transactions described below, were approximately $245.8 million.
In November 2019, the Company issued an additional $75$75.0 million aggregate principal amount of 0.50% convertible senior notes (the "Additional Notes"Notes," and together with the Initial Notes, the "Notes") due 2024 in a registered offering under the same indenture as the Initial Notes. The total net proceeds from the Additional Notes, after deducting underwriting discounts, debt issuance costs, and costs of the capped call transactions described below, were approximately $64.6 million. The Additional Notes constitute a further issuance of, and form a single series with, the Company’s outstanding 0.50% convertible senior notes
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due 2024 issued in February 2019 in the aggregate principal amount of $287.5 million.Initial Notes. Immediately after giving effect to the issuance of the Additional Notes, the Company hashad $362.5 million aggregate principal amount of convertible senior notes.
The Notes are senior unsecured obligations of the Company and interest is payable semiannually in arrears on February 1 and August 1 of each year, beginning on February 1, 2020. The Notes will mature on February 1, 2024, unless earlier repurchased, redeemed, or converted.
Each $1,000 principal amount of the Notes are initially convertible into 38.9484 shares of the Company’s common stock, par value $0.001, which is equivalent to an initial conversion price of approximately $25.68 per share. The conversion rate is subject to adjustment upon the occurrence of certain specified events but will not be adjusted for any accrued and unpaid interest. In addition, upon the occurrence of certain corporate events that occur prior to the maturity date or following the Company's issuance of a notice of redemption, in each case as described in the Indenture, the Company will, in certain circumstances, increase the conversion rate for a holder that elects to convert its Notes in connection with such a corporate event or during the relevant redemption period.
ThePrior to the close of business on the business day immediately preceding October 1, 2023, the Notes will be convertible at certain timesthe option of the holders only under the following circumstances:
1.At any time during any calendar quarter commencing after the fiscal quarter ending on June 30, 2019 (and only during such calendar quarter), if the last reported sale price of the Common Stock for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day;
2.During the 5 business day period immediately after any 10 consecutive trading day period (the measurement period), if the trading price per $1,000 principal amount of the Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the common stock on each such trading day and uponthe conversion rate on each such trading day;
3.If the Company calls any or all of the Notes for redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date; or
4.Upon the occurrence of certainspecified corporate events (as set forth in the future. Further, onindenture governing the Notes).
On or after October 1, 2023, until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their Notes, regardless of the foregoing circumstances. Upon conversion, the Company will satisfy its conversion obligation by paying or delivering, as the case may be, cash, shares of common stock, or a combination of cash and shares of common stock, at the Company's election.discretion. The Company’s current intent is to settle the principal amount of the Notes in cash upon conversion. During the sixnine months ended September 30,December 31, 2020, the conditions allowing holderspermitting conversion of the Notes to convert were not met.
The Company may not redeem the Notes prior to February 4, 2022. On or after February 4, 2022, the Company may redeem for cash all or part of the Notes, at the redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if the last reported sale price of the common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period (including the last trading day of such period) ending on, and including, the trading day immediately preceding the date on which the Company provides a redemption notice. If a fundamental change (as defined in the indenture governing the notes) occurs at any time, holders of Notes may require the Company to repurchase for cash all or any portion of their Notes at a repurchase price equal to 100% of the principal amount of the Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date.
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The Notes are senior unsecured obligations and will rank senior in right of payment to any of the Company’s indebtedness that is expressly subordinated in right of payment to the Notes, equal in right of payment with the Company’s existing and future liabilities that are not so subordinated, effectively junior in right of payment to any of the Company’s secured indebtedness to the extent of the value of the assets securing such indebtedness, and structurally junior to all indebtedness and other liabilities (including trade payables) of current or future subsidiaries of the Company.
The net carrying amount of the liability component of the Notes was as follows (in thousands):
September 30, 2020March 31, 2020 December 31, 2020March 31, 2020
PrincipalPrincipal$362,500 $362,500 Principal$362,500 $362,500 
Unamortized debt discountUnamortized debt discount(61,786)(69,987)Unamortized debt discount(57,587)(69,987)
Unamortized issuance costsUnamortized issuance costs(861)(976)Unamortized issuance costs(802)(976)
Net carrying amountNet carrying amount$299,853 $291,537 Net carrying amount$304,111 $291,537 
Interest expense related to the Notes was as follows (in thousands):
 Three Months Ended September 30,Six Months Ended September 30,
2020201920202019
Contractual interest expense$453 $360 $906 $719 
Amortization of debt discount4,133 3,198 8,201 6,344 
Amortization of issuance costs58 27 115 53 
Total interest expense$4,644 $3,585 $9,222 $7,116 
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 Three Months Ended December 31,Nine Months Ended December 31,
2020201920202019
Contractual interest expense$453 $400 $1,359 $1,119 
Amortization of debt discount4,198 3,551 12,399 9,926 
Amortization of issuance costs59 40 174 92 
Total interest expense$4,710 $3,991 $13,932 $11,137 
Capped Call
In connection with the pricing of the Initial Notes and Additional Notes, the Company entered into privately negotiated capped call transactions ("Capped Calls") with certain counterparties. The Capped Calls each have an initial strike price of approximately $25.68 per share, subject to certain adjustments, which corresponds to the initial conversion price of the Notes. The Capped Calls have initial cap prices of $39.50 per share, subject to certain adjustments. The Capped Calls are expected to partially offset the potential dilution to the Company’s Common Stock upon any conversion of the Notes, with such offset subject to a cap based on the cap price. The Capped Calls cover, subject to anti-dilution adjustments, approximately 14.1 million shares of the Company’s Common Stock. The Capped Calls are subject to adjustment upon the occurrence of specified extraordinary events affecting the Company, including merger events, tender offers and announcement events. In addition, the Capped Calls are subject to certain specified additional disruption events that may give rise to a termination of the Capped Calls, including nationalization, insolvency or delisting, changes in law, failures to deliver, insolvency filings, and hedging disruptions. For accounting purposes, the Capped Calls are separate transactions and not part of the terms of the Notes. As these transactionsThe Capped Calls meet certain accounting criteria the Capped Calls areto be recorded in stockholders' equity and are not accounted for as derivatives. The costcosts of $33.7 million incurred to purchase the Capped Calls, $33.7 million in connection with the Initial Notes and $9.3 million in connection with the Additional Notes, were recorded as a reduction to additional paid-in capital and will not be remeasured.
10. STOCK-BASED COMPENSATION
The following tables summarize information pertaining to the stock-based compensation expense (in thousands):
Three Months Ended September 30,Six Months Ended September 30,
 2020201920202019
Cost of service revenue$2,410 $1,182 $4,224 $2,179 
Cost of other revenue1,113 757 1,900 1,491 
Research and development8,255 4,217 14,800 8,081 
Sales and marketing7,054 5,340 12,793 9,261 
General and administrative6,490 5,895 14,384 9,976 
Total$25,322 $17,391 $48,101 $30,988 

Restricted Stock Units (RSU) and Performance Stock Units (PSU)
Activities related to RSU and PSU, collectively Stock Awards, during six months ended September 30, 2020 and 2019 are summarized as follows (in thousands, except weighted-average grant-date fair value and recognition period):
Six Months Ended September 30,
 20202019
Stock awards outstanding at the beginning of the period:9,191 7,820 
Stock awards granted5,343 5,123 
Stock awards vested (2,498)(1,945)
Stock awards canceled and forfeited(564)(663)
Stock awards outstanding at the end of the period: 11,472 10,335 
Weighted-average fair value of grants during the period$15.75 $22.35 
Weighted-average remaining recognition period (in years) 1.962.28
Total unrecognized compensation expense at period-end$144,066 $127,540 
Stock Options
Activities related to Stock Options, during six months ended September 30, 2020 and 2019 are summarized as follows (in thousands, except weighted-average grant-date fair value and recognition period):
Three Months Ended December 31,Nine Months Ended December 31,
 2020201920202019
Cost of service revenue$2,472 $1,387 $6,696 $3,566 
Cost of other revenue1,142 839 3,042 2,330 
Research and development8,297 5,535 23,097 13,616 
Sales and marketing9,363 5,197 22,156 14,458 
General and administrative5,565 6,359 19,949 16,335 
Total$26,839 $19,317 $74,940 $50,305 
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Six Months Ended September 30,
 20202019
Stock options outstanding at the beginning of the period:2,274 3,114 
Options granted
Options exercised(36)(287)
Options canceled and forfeited(28)(39)
Options outstanding at the end of the period: 2,210 2,788 
Weighted-average fair value of grants during the period$$
Total intrinsic value of options exercised during the period$302 $3,726 
Weighted-average remaining recognition period (in years) 1.542.32
Total unrecognized compensation expense at period-end$671 $1,268 
Restricted Stock Units (RSU) and Performance Stock Units (PSU)
The following table presents activities related to RSU and PSU, collectively Stock Awards (in thousands, except weighted-average grant-date fair value and recognition period):
Nine Months Ended December 31,
 20202019
Stock Awards outstanding at the beginning of the period:9,191 7,820 
Stock Awards granted6,742 5,886 
Stock Awards vested (3,530)(2,860)
Stock Awards canceled and forfeited(969)(1,056)
Stock Awards outstanding at the end of the period: 11,434 9,790 
Weighted-average fair value of grants during the period$18.97 $22.35 
Weighted-average remaining recognition period (in years) 1.882.13
Total unrecognized compensation expense at period-end$157,416 $128,463 
During the nine months ended December 31, 2020, the Company granted 5.7 million shares of RSU and 1.0 million shares of PSU, of which, 28,467 shares of PSU vested based on market based conditions during the period.
The PSU awards granted during the nine months ended December 31, 2020 are based on Total Shareholder Return ("TSR") as measured relative to the S&P Software Services Select Industry Index over performance periods ranging from one to three years. All PSU awards vest 100% at the end of the respective performance periods. A number of shares equal to 100% of the target opportunity will be earned in the event that the Company’s performance matches that of the specified index during the relevant period. A 2x multiplier will be applied for each percentage point of positive or negative relative TSR, such that the number of shares of common stock earned will increase or decrease by 2% of the target number of shares, subject to a maximum of 200% of the target number of shares. In the event that the Company’s relative TSR performance is less than negative 30%, relative to the specified index, no shares will be earned for the applicable performance period. The PSU were valued for compensation expense purposes at $29.07 per weighted average share as determined by Monte Carlo simulations using volatility factors ranging from 55.66% to 60.68% and risk-free rates ranging from 0.15% to 0.18%.
The RSU awarded during the nine months ended December 31, 2020 were valued at $17.12 per weighted average share based on the closing sales price of the Company's stock on the grant date.
Stock Options
The following table presents activities related to Stock Options (in thousands, except weighted-average grant-date fair value and recognition period):
Nine Months Ended December 31,
 20202019
Stock options outstanding at the beginning of the period:2,274 3,114 
Options exercised(175)(391)
Options canceled and forfeited(28)(55)
Options outstanding at the end of the period: 2,071 2,668 
Total intrinsic value of options exercised during the period$1,761 $4,844 
Weighted-average remaining recognition period (in years) 1.332.16
Total unrecognized compensation expense at period-end$558 $1,102 
Employee Stock Purchase Plan (ESPP)
In July 2020, 329,430 shares were purchased and issued under the ESPP. As of September 30,December 31, 2020, there was a total of $2.9$1.5 million of unrecognized compensation, net of estimated forfeitures, which will be amortized on a straight line basis over the remaining weighted-average vesting period of 0.570.32 years. As of September 30,December 31, 2020, a total of 3,252,882 shares were available for issuance under the ESPP.
Stock Repurchases
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In May 2017, the Company's board of directors authorized the 2017 Repurchase Plan under which the Company could purchase up to $25.0 million of its common stock. The remaining amount available at September 30,December 31, 2020 was approximately $7.1 million. There were 0 stock repurchases during the three and sixnine months ended September 30,December 31, 2020 and 2019.
11. INCOME TAXES
The Company's effective tax rate was (0.4)(0.8)% and (0.6)% for the three months ended September 30,December 31, 2020 and 2019, respectively, and (0.5)(0.6)% for the sixnine months ended September 30,December 31, 2020 and 2019. The difference in the effective tax rate and the U.S. federal statutory rate was primarily due to the full valuation allowance the Company continues to maintain against its deferred tax assets. The effective tax rate is calculated by dividing the income tax provision by net loss before income tax expense.
12. NET LOSS PER SHARE
The following table summarizes the computation of basic and diluted net loss per share (in thousands, except share and per share data):
Three Months Ended September 30,Six Months Ended September 30,
 2020201920202019
Numerator:
Net loss available to common stockholders$(38,413)$(40,932)$(80,326)$(75,197)
Denominator:
Common shares - basic and diluted104,62098,353104,11697,356
Net loss per share
Basic and diluted$(0.37)$(0.42)$(0.77)$(0.77)
Three Months Ended December 31,Nine Months Ended December 31,
 2020201920202019
Net loss$(40,225)$(47,071)$(120,551)$(122,268)
Weighted average common shares outstanding - basic and diluted106,64199,922104,96199,082
Net loss per share:
Basic and diluted$(0.38)$(0.47)$(1.15)$(1.23)
The following shares attributable to outstanding stock options and stock awards were excluded from the calculation of diluted earnings per share because their inclusion would have been anti-dilutive (in thousands):
Three Months Ended September 30,Six Months Ended September 30,Three Months Ended December 31,Nine Months Ended December 31,
2020201920202019 2020201920202019
Stock optionsStock options2,210 2,788 2,210 2,788 Stock options2,071 2,668 2,071 2,668 
Stock awardsStock awards11,472 10,334 11,472 10,334 Stock awards11,434 9,790 11,434 9,790 
Potential shares to be issued from ESPPPotential shares to be issued from ESPP529 387 529 387 Potential shares to be issued from ESPP529 387 529 387 
Total anti-dilutive sharesTotal anti-dilutive shares14,211 13,509 14,211 13,509 Total anti-dilutive shares14,034 12,845 14,034 12,845 
13. GEOGRAPHICAL INFORMATION
The following tables present information by geographic area (in thousands):
Three Months Ended December 31,Nine Months Ended December 31,
Revenue by geographic area: 
2020201920202019
United States$98,919 $90,171 $288,268 $258,847 
International37,766 28,396 99,357 65,912 
Total revenue$136,685 $118,567 $387,625 $324,759 
Property and equipment by geographic area:December 31, 2020March 31, 2020
United States$89,063 $87,673 
International5,417 6,709 
Total property and equipment, net$94,480 $94,382 

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13. GEOGRAPHICAL INFORMATION
The following tables set forth the geographic information for each period (in thousands):
Three Months Ended September 30,Six Months Ended September 30,
Revenue by geographic area: 
2020201920202019
United States$96,105 $85,428 $189,349 $168,676 
International33,028 24,089 61,591 37,516 
Total revenue$129,133 $109,517 $250,940 $206,192 
Property and equipment by geographic area:September 30, 2020March 31, 2020
United States$90,493 $87,673 
International5,692 6,709 
Total property and equipment, net$96,185 $94,382 
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our condensed consolidated financial statements and related notes appearing elsewhere in this Quarterly Report on Form 10-Q. As discussed in the section titled “Forward-Looking Statements,” the following discussion and analysis contains forward-looking statements that involve risks and uncertainties, as well as assumptions that, if they never materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward-looking statements. Factors that could cause or contribute to these differences include, but are not limited to, those discussed below and elsewhere in this report, particularly those set forth under the section entitled "Risk Factors" in our annual reportAnnual Report on Form 10-K ("Form 10-K") for the fiscal year ended March 31, 2020, as modified by those in Part II, Item 1A of our Quarterly Report for the three-month periodthree months ended June 30, 2020 on Form 10-Q under the heading "Risk Factors."
BUSINESS OVERVIEW
We are a leading software-as-a-service ("SaaS") provider of voice, video, chat, contact center, and enterprise-class application programming interfacesinterface ("API") solutions powered by one global cloud communications platform. From our proprietary cloud technology platform, organizations across all their locations and employees globally have access to unified communications, team collaboration, video conferencing, contact center, data and analytics, communication APIs, and other services, enabling them to be more productive and responsive to their customers.
Our customers rangerepresent companies ranging from small businesses to large multinational enterprises, and their users are spread across more than 150 countries. In recent years, we have increased our focus on the mid-market and enterprise customer categories.
We have a portfolio of cloud-based offerings that are subscription based, made available at different rates varying by the specific functionalities, services, and number of users. We generate service revenue from communication services subscriptions and platform usage. We generate other revenues from the sales and rentals of office phones and other hardware equipment, and professional services. We define a “customer” as one or more legal entities to which we provide services pursuant to a single contractual arrangement. In some cases, we may have multiple billing relationships with a single customer (for example, where we establish separate billing accounts for a parent company and each of its subsidiaries).
Our flagship service is our 8x8 X Series, a next generation suite of unified communications as a service ("UCaaS") and contact center as a service ("CCaaS") solutions, which consist of service plans of increasing functionality designated X1, X2, etc., through X8. With 8x8 X Series, we provide enterprise-grade voice, unified communications, video meetings, team collaboration, and contact center functionalities from a single platform. We also offer standalone SaaS services for contact center, video meetings, and enterprise communication APIs. Through our July 2019 acquisition of Wavecell Pte. Ltd., an Asia-based global communication platform as a service ("CPaaS") provider of SMS, messaging, voice and video APIs to enterprises, we expanded our API offerings both geographically and functionally. We expect to continue integrating these services into our platform, as we believe in the value of the collective solutions.
As of September 30,December 31, 2020, over 90% of our customer base hascustomers have been migrated to the 8x8 X Series platform and we intend to migrate thesubstantially all of our remaining customer basecustomers through the end of the fiscal year. These migrations may require us to incur professional services and related engineering costs. While we may not be able to recover these costs from our customers, we believe that we will realize other benefits including reducing the number of platforms that we are required to support and improved customer retention.
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SUMMARY AND OUTLOOK
In the secondthird quarter of fiscal 2021, our total service revenue grew 19.3%15.2% year-over-year to $120.9$127.1 million. We continued to show an increase in our average annualized service revenue per customer, which grew to $8,052$8,705 in the secondthird quarter of fiscal 2021, compared with $7,957$8,248 in the same period of fiscal 2020, as we are selling more to mid-market and enterprise customers. Service revenue from mid-market and enterprise customers represented 46%48% of total service revenue and grew 29% over25% compared to the same three-month period in the prior year. We increased the number of bundled deals where customers purchase our integrated communications and contact center solutions.
Our continued business focus is on achieving improved operating efficiencies while delivering revenue growth. We continue to make important investments in our products and technology platform, and focus on key areas of spend in our go-to-market strategy. Additionally, we aim to drive efficiencies in our small business customer acquisition and operations, and are heavily focused on expanding our business upmarket with mid-market and enterprise customers. We believe that effective execution will enable the Company to grow and capture market share, during this phase of industry disruption, in a cost-effective way and support the Company in pursuit of its path to profitability and operating cash flow improvement.
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In the remainder of fiscal 2021, we plan to continue making investments in activities to acquire more customers, including global expansion and investing in our direct marketing efforts, sales force, e-commerce, and outbound marketing efforts. We also intend to continue investing in our indirect channel programs to acquire more third-party selling agents to help sell our solutions, including investments in our value added resellers ("VARs") and master agent programs. Should these upfront investments not result in additional revenue from new or existing customers, including as result of adverse impacts from the COVID-19 pandemic, and/or these cost reduction and efficiency efforts do not result in meaningful savings, our operating results may be adversely impacted.
NEW CEO APPOINTMENT
On December 10, 2020, we appointed David Sipes as Chief Executive Officer and a member of the board of directors.
IMPACTS OF COVID-19
The full extent of the impact of the COVID-19 pandemic on our business, operations and financial results will depend on numerous evolving factors that we may not be able to accurately predict, including those set forth under the section entitled "Risk Factors" in our annual report on Form 10-K for the fiscal year ended March 31, 2020, as modified by the "Risk Factors" section of our Quarterly Report on Form 10-Q for the three-month periodthree months ended June 30, 2020. In an effort to contain COVID-19 or slow its spread, governments around the world have enacted various measures, some of which have been subsequently rescinded, modified or reinstated, including orders to close non-essential businesses, isolate residents to their homes, and practice social distancing. To protect the health and safety of our employees, our workforce continues to spend a significant amount of time working from home with many of our offices around the world remaining closed and travel being curtailed for our employees, as well as our customers, as the number of COVID-19 cases continues to surge and retreat in various locations globally, and the availability and reliability of testing remains inconsistent.globally. These restrictions have altered the ways we conduct sales activities and market to current and prospective customers and how we conduct our ongoing business operations, resulting in reductions in travel related expenses and, by some measures, has resulted in improved employee productivity in certain areas. Small business and mid-size customers have been more impacted by the COVID-19 pandemic than enterprise customers, which has necessitated greater flexibility and responsiveness to our customerscustomers' evolving needs. While we anticipate that the global health crisis caused by COVID-19, including any resurgences, and the measures enacted to slow its spread will negatively impact certain business activity across the globe combined with the limited availability of vaccines, to date, it has not resulted in as significant a negative impact on our business, as initially anticipated. We continue to proactively and closely monitor the health of our customers and suppliers and other impacts of the pandemic to determine whether risks of loss or other negative impacts upon our business exist. The effects of COVID-19 have also been considered in management's judgments around credit loss impairments.
COMPONENTS OF RESULTS OF OPERATIONS
Service Revenue
Service revenue consists of communication services subscriptions, platform usage revenue, and related fees from our UCaaS, CCaaS, and CPaaS offerings. We plan to continue to drive our business to increase service revenue through a combination of increased sales and marketing efforts, geographic expansion of our customer base outside the United States, innovation in product and technology, and through strategic partnerships and other business development.
Other Revenue
Other revenue consists primarily of revenues from sales and rentals of IP telephones in conjunction with our cloud telephony service, and revenues from non-recurring professional services, primarily in support of deployment of our solutions and/or platform. Other revenue is dependent on the number of customers who choose to purchase or rent an IP telephone in conjunction with our service instead of using the solution on their cell phone, computer, or other compatible device, and/or choose to engage our services for implementation and deployment of our cloud services.
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Cost of Service Revenue
Cost of service revenue consists primarily of costs associated with network operations and related personnel, technology licenses, amortization of internally developed software, and other costs such as customer service, and technical support costs. Cost of service revenue also includes other communication origination and termination services provided by third-party carriers and outsourced customer service call center operations.operations, and other costs such as customer service, and technical support costs. We allocate overhead costs such as IT and facilities to cost of service revenue, as well as to each of the operating expense categories, generally based on relative headcount. Our IT costs include costs for IT infrastructure and personnel. Facilities costs primarily consist of office leases and related expenses.
Cost of Other Revenue
Cost of other revenue consists primarily of direct and indirect costs associated with the purchasing of IP telephones as well as the scheduling, shipping and handling, personnel costs and related expenditures incurred in connection with the professional services associated with the deployment and implementation of our products, and allocated IT and facilities costs.
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Research and Development
Research and development expenses consist primarily of personnel and related costs, third-party development and related work, software and equipment costs necessary for us to conduct our product and platform development and engineering efforts, and allocated IT and facilities costs.
Sales and Marketing
Sales and marketing expenses consist primarily of personnel and related costs, sales commissions, trade shows, advertising and other marketing, demand generation, channel costs, promotional expenses, and allocated IT and facilities costs.
General and Administrative
General and administrative expenses consist primarily of personnel and related costs, professional services fees, human resources, legal, employee recruiting, general management, and allocated IT and facilities costs.
Other Income (Expense),Expense, net
Other income (expense),expense, net consists primarily of interest expense related to the convertible notes, offset by income earned on our cash, cash equivalents, and investments, and foreign exchange gains/losses.
Provision for Income Taxes
Provision for income taxes consists primarily of state minimum taxes in the United States and foreign income taxes. As we expand the scale of our international business activities, any changes in the U.S. and foreign taxation of such activities may increase our overall provision for income taxes in the future. We have a valuation allowance for our U.S. deferred tax assets, including federal and state net operating loss carryforwards, or NOLs. We expect to maintain this valuation allowance until it becomes more likely than not that the benefit of our federal and state deferred tax assets will be realized by way of expected future taxable income in the United States.
RESULTS OF OPERATIONS
The following discussion should be read in conjunction with our condensed consolidated financial statements and the notes thereto. All dollar amounts herein are in thousands unless otherwise noted.
Revenue
September 30,
Service revenueService revenue20202019ChangeService revenue20202019Change
(dollar amounts in thousands) 
Three months ended$120,942 $101,345 $19,597 19.3 %
Three months ended December 31,Three months ended December 31,$127,107 $110,363 $16,744 15.2 %
Percentage of total revenuePercentage of total revenue93.7 %92.5 %Percentage of total revenue93.0 %93.1 %
Six months ended$235,125 $191,184 $43,941 23.0 %
Nine months ended December 31,Nine months ended December 31,$362,232 $301,547 $60,685 20.1 %
Percentage of total revenuePercentage of total revenue93.7 %92.7 %Percentage of total revenue93.4 %92.9 %
Service revenue increased for the three and sixnine months ended September 30,December 31, 2020, compared with the same period of the previous fiscal year primarily due to a net increase in our subscribercustomer base, expanded offerings to existing customers, and growth in related usage; service revenue from new customers was primarily driven by sales of standalone and bundled UCaaS and
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CCaaS deals, globally, to our mid-market and enterprise customers. IncreaseThe increase in service revenue was also attributable to growth in usage revenue generated by our CPaaS products primarily in the APAC region.
We expect total service revenue to grow over time with our expanding platform offering as our business continues to expand globally and across broader customer categories.
September 30,
Other revenueOther revenue20202019ChangeOther revenue20202019Change
(dollar amounts in thousands) 
Three months ended$8,191 $8,172 $19 0.2 %
Three months ended December 31,Three months ended December 31,$9,578 $8,204 $1,374 16.7 %
Percentage of total revenuePercentage of total revenue6.3 %7.5 %Percentage of total revenue7.0 %6.9 %
Six months ended$15,815 $15,008 $807 5.4 %
Nine months ended December 31,Nine months ended December 31,$25,393 $23,212 $2,181 9.4 %
Percentage of total revenuePercentage of total revenue6.3 %7.3 %Percentage of total revenue6.6 %7.1 %
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Other revenue remained relatively flatincreased during the three months and nine months ended September 30,December 31, 2020, compared with the same period in the prior fiscal year the slightyear. The increase was indriven by professional services revenue resulting from the overall growth in our business and subscribercustomer base, largelypartially offset by a decrease in product revenue as a result of shift towards hardware rental program and reduced demand for hardware caused by COVID-19 pandemic with increase in work from home policies.
Other revenue increased during the six months ended September 30, 2020 compared with the same period in the prior fiscal year primarily due to an increase in professional services revenue resulting from the overall growth in our business and subscriber base, partially offset by a decrease in product revenue as a result of shift toward hardware rental program and reduced demand for hardware caused by COVID-19 pandemic with increase in work from home policies.program.
We expect other revenue to grow over time, at a rate lower than our service revenue aswhile we focus on delivering higher margin platform offerings to existing and new customers.
No customer represented greater than 10% of the Company's total revenue for the three and sixnine months ended September 30,December 31, 2020 or 2019.
Cost of Revenue
September 30,
Cost of service revenueCost of service revenue20202019ChangeCost of service revenue20202019Change
(dollar amounts in thousands) 
Three months ended$44,803 $35,813 $8,990 25.1 %
Three months ended December 31,Three months ended December 31,$47,044 $40,786 $6,258 15.3 %
Percentage of service revenuePercentage of service revenue37.0 %35.3 %Percentage of service revenue37.0 %37.0 %
Six months ended$85,799 $61,113 $24,686 40.4 %
Nine months ended December 31,Nine months ended December 31,$132,843 $101,899 $30,944 30.4 %
Percentage of service revenuePercentage of service revenue36.5 %32.0 %Percentage of service revenue36.7 %33.8 %
The increase in costCost of service revenue for the three months ended September 30,December 31, 2020, fromincreased compared to the same period in the prior fiscal year wasperiod, primarily attributabledue to a $7.2$5.1 million increase in communication infrastructure costs incurred to deliver our services resulting from growth in usage across our platform including those in connection with CPaaS, a $1.7 million increase in amortization of capitalized software, and a $1.1 million increase in stock-based compensation expense. These increases were partially offset by a $0.8 million decrease in depreciation and amortization of intangible assets and a $0.6 million decrease in employee and consulting related expenditures.
Cost of service revenue for the nine months ended December 31, 2020, increased over the same prior fiscal year period, primarily due to $25.4 million increase in communication infrastructure costs incurred to deliver our services, primarily due to growth in usage across our platform including those in connection with CPaaS, a $1.9$5.6 million increase in amortization of capitalized software, and a $1.2 million increase in stock-based compensation expense. These increases were partially offset by a $0.7 million decrease in employee and consulting related expenditures and a $0.6 million decrease in depreciation and amortization of intangible assets.
Cost of service revenue for the six months ended September 30, 2020 increased over the same prior fiscal year period primarily due to $20.2 million increase in communication infrastructure costs incurred to deliver our services primarily due to growth in usage across our platform including those in connection with CPaaS, a $3.9 million increase in amortization of capitalized software, and a $2.0$3.1 million increase in stock-based compensation expense. These increases were partially offset by a decrease of $1.0$1.7 million in employee and consulting related expenditures and a decrease of $0.6$1.5 million in depreciation and amortization of intangible assets.
We expect that cost of service revenue will increase in absolute dollars in future periodsover time as revenue continues to grow.
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September 30,
Cost of other revenueCost of other revenue20202019ChangeCost of other revenue20202019Change
(dollar amounts in thousands) 
Three months ended$11,693 $13,884 $(2,191)(15.8)%
Three months ended December 31,Three months ended December 31,$13,364 $15,433 $(2,069)(13.4)%
Percentage of other revenuePercentage of other revenue142.8 %169.9 %Percentage of other revenue139.5 %188.1 %
Six months ended$22,830 $26,275 $(3,445)(13.1)%
Nine months ended December 31,Nine months ended December 31,$36,194 $41,708 $(5,514)(13.2)%
Percentage of product revenuePercentage of product revenue144.4 %175.1 %Percentage of product revenue142.5 %179.7 %
Cost of other revenue for the three and sixnine months ended September 30,December 31, 2020, decreased compared to the same periods in the prior fiscal year, primarily due to a decrease in cost of products as a result of decrease in hardware shipment volume, improved pricing, and increase in our hardware rental program, which has better margins than hardware sales.
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Operating Expenses
September 30,
Research and developmentResearch and development20202019ChangeResearch and development20202019Change
(dollar amounts in thousands) 
Three months ended$21,567 $19,434 $2,133 11.0 %
Three months ended December 31,Three months ended December 31,$23,702 $19,870 $3,832 19.3 %
Percentage of total revenuePercentage of total revenue16.7 %17.7 %Percentage of total revenue17.3 %16.8 %
Six months ended$43,061 $37,765 $5,296 14.0 %
Nine months ended December 31,Nine months ended December 31,$66,763 $57,635 $9,128 15.8 %
Percentage of total revenuePercentage of total revenue17.2 %18.3 %Percentage of total revenue17.2 %17.7 %
Research and development expenses for the three months ended September 30,December 31, 2020, increased compared to the same prior fiscal year period, primarily due to a $4.0$2.7 million increase in stock-based compensation expense, a $1.7 million lower allocation to capitalized software costs, and a $0.3$0.4 million increase in public cloud expenses.amortization of capitalized software. These increases were partially offset by a $1.5$0.4 million higher allocation to capitalized softwaredecrease in employee and consulting related expenditures, a $0.4 million decrease in travel related costs, and a $0.5$0.2 million decrease in travelfacility related costs.
Research and development expenses for the sixnine months ended September 30,December 31, 2020, increased compared to the same prior fiscal year period, primarily due to a $6.7$9.5 million increase in stock-based compensation expense, a $0.8$1.1 million increase in public cloud expenses, and a $0.5$0.9 million increase in employee and consulting related expenditures.amortization of capitalized software. These increases were partially offset by a $1.9$1.4 million higher allocation of capitalized software costs from research and development expenses during the period and a decrease of $0.9 million in travel related costs.costs, a $0.6 million decrease in the cost for computer supplies, and an increase in the capitalization of internally developed software costs of $0.3 million.
We plan to continue to invest in research and development to support our efforts to expand the capabilities and scope of our platform and to enhance the user experience. While we expect to continue to improve our cost structure and achieve operational efficiencies, we expect that research and development expenses will increase in absolute dollars in future periods as we continue to invest in our development efforts, and vary from period-to-period as a percentage of revenue.
September 30,
Sales and marketingSales and marketing20202019ChangeSales and marketing20202019Change
(dollar amounts in thousands) 
Three months ended$61,399 $57,895 $3,504 6.1 %
Three months ended December 31,Three months ended December 31,$63,986 $63,099 $887 1.4 %
Percentage of total revenuePercentage of total revenue47.5 %52.9 %Percentage of total revenue46.8 %53.2 %
Six months ended$121,549 $111,494 $10,055 9.0 %
Nine months ended December 31,Nine months ended December 31,$185,535 $174,593 $10,942 6.3 %
Percentage of total revenuePercentage of total revenue48.4 %54.1 %Percentage of total revenue47.9 %53.8 %
Sales and marketing expenses for the three months ended September 30,December 31, 2020, increased slightly over the same prior fiscal year period, primarily due to a $4.2 million increase in stock-based compensation expense, a $3.4 million increase in channel commissions, and a $2.2 million increase in amortization of deferred sales commission costs. These increases were partially offset by a net decrease of $8.8 million in marketing program and public cloud expenses due to gained efficiencies in lead generation and brand awareness, travel related costs, and employee and consulting related expenditures.
Sales and marketing expenses for the nine months ended December 31, 2020, increased over the same prior fiscal year period, primarily due to a $2.8$9.5 million increase in channel commissions, a $2.1$7.7 million increase in stock-based compensation expense, a $6.2 million increase in amortization of deferred sales commission costs, and a $1.7 million increase in stock-based compensation expense, a $0.6$4.8 million increase in employee and consulting related expenditures, and a $0.6 million increase in marketing software and application related expenditures. These increases were partially offset by a net decrease of $2.3 million in marketing program and public cloud expenses as we gained efficiencies in lead generation and brand awareness and a $1.9 million decrease in travel related costs.
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Sales and marketing expenses for the six months ended September 30, 2020 increased over the same prior fiscal year period primarily due to a $5.4 million increase in employee and consulting related expenditures, a $4.3 million increase in channel commissions, a $4.0 million increase in amortization of deferred sales commission costs, a $3.5 million increase in stock-based compensation expense, and a $2.2 million increase in marketing software and application costs. These increases were partially offset by a net decrease of $7.2$19.9 million in marketing program and public cloud expenses as wedue to gained efficiencies in lead generation and brand awareness and a $2.7 million decrease in travel related costs.
We plan to continue investing in sales and marketing to attract and retain customers on our platform and to increase our brand awareness. While we expect to continue to improve our cost structure and achieve operational efficiencies, we expect that sales and marketing expenses will increase in absolute dollars in future periods and vary from period-to-period as a percentage of revenue.
September 30,
General and administrativeGeneral and administrative20202019ChangeGeneral and administrative20202019Change
(dollar amounts in thousands) 
Three months ended$22,769 $20,435 $2,334 11.4 %
Three months ended December 31,Three months ended December 31,$23,844 $22,547 $1,297 5.8 %
Percentage of total revenuePercentage of total revenue17.6 %18.7 %Percentage of total revenue17.4 %19.0 %
Six months ended$48,559 $40,042 $8,517 21.3 %
Nine months ended December 31,Nine months ended December 31,$72,403 $62,589 $9,814 15.7 %
Percentage of total revenuePercentage of total revenue19.4 %19.4 %Percentage of total revenue18.7 %19.3 %
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General and administrative expenses for the three months ended September 30,December 31, 2020, increased as compared to the same prior fiscal year period, primarily due to a $0.7$1.8 million increase in employee and consulting related expenditures, including CEO succession costs, and $0.6 million higher allowance for credit losses, recognizedpartially in response to external market factors and uncertainties in connection with the COVID-19 pandemic. These increases were partially offset by a $0.8 million decrease in stock-based compensation expense and a $0.5 million decrease in acquisition and integration costs.
General and administrative expenses for the nine months ended December 31, 2020, increased over the same prior fiscal year period, primarily due to a $3.6 million increase in stock-based compensation expense, a $3.4 million increase in employee and consulting related expenditures, including CEO succession costs, $2.6 million higher allowance for credit losses, partially in response to external market factors and uncertainties in connection with the COVID-19 pandemic, a $0.7 million increase in employee and consulting related expenditures, a $0.6 million increase in stock-based compensation expense, and a $0.7 million increase in facilities and other allocated expenses; these increases were partially offset by a $0.4 million decrease in acquisition and integration costs.
General and administrative expenses for the six months ended September 30, 2020 increased over the same prior fiscal year period primarily due to a $4.4 million increase in stock-based compensation expense, a $2.2$2.3 million increase in tax related expense, and a $2.1 million higher allowance for credit losses recognized, a $1.6$1.5 million increase in employee and consulting related expenditures, and a $1.2 million increase in facilities and other allocated expenses.depreciation expense. These increases were partially offset by a $1.5$2.0 million decrease in acquisition and integration costs and a $1.4$1.5 million decrease in contract termination cost.costs.
We expect to continue improving our cost structure and achieve operational efficiencies, and therefore also expect that general and administrative expenses as a percentage of total revenue will decline over time.
September 30,
Other expense, netOther expense, net20202019ChangeOther expense, net20202019Change
(dollar amounts in thousands) 
Three months ended$(5,178)$(2,732)$(2,446)89.5 %
Three months ended December 31,Three months ended December 31,$4,669 $3,623 $1,046 28.9 %
Percentage of total revenuePercentage of total revenue(4.0)%(2.5)%Percentage of total revenue3.4 %3.1 %
Six months ended$(9,103)$(4,296)$(4,807)111.9 %
Nine months ended December 31,Nine months ended December 31,$13,772 $7,919 $5,853 73.9 %
Percentage of total revenuePercentage of total revenue(3.6)%(2.1)%Percentage of total revenue3.6 %2.4 %
Other expense, net of other income increased for the three months ended September 30,December 31, 2020, over the same prior fiscal year period, primarily due to a $1.1$0.7 million of lower interest income and a $1.0$0.7 million increase in expense related to contractual interest, expense, amortization of debt discount, and amortization of issuance costs associated with additional convertible notes issued in November 2019. The remainingThese increases were partially offset by a $0.2 million increase is attributable toin other income and impacts from fluctuations in foreign exchange rates.
Other expense, net of other income for the sixnine months ended September 30,December 31, 2020, increased over the same prior fiscal year period, primarily due to a $2.6$3.4 million of lower interest income and a $2.1$2.8 million increase in expense related to contractual interest, expense, amortization of debt discount, and amortization of issuance costs associated with additional convertible notes issued in November 2019. The remaining increase is attributable to fluctuations in foreign exchange rates.These increases were partially offset by $0.5 million of higher other income.
With the recognition of interest expense and amortization of debt discount and issuance costs in connection with our convertible senior notes, we expect the net of other income and expense to continue to be in a net expense position in future periods.for the foreseeable future.
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September 30,
Provision for income taxesProvision for income taxes20202019ChangeProvision for income taxes20202019Change
(dollar amounts in thousands)
Three months ended$137 $256 $(119)(46.5)%
Three months ended December 31,Three months ended December 31,$301 $280 $21 7.5 %
Percentage of loss before provision for income taxesPercentage of loss before provision for income taxes(0.4)%(0.6)%Percentage of loss before provision for income taxes(0.8)%(0.6)%
Six months ended$365 $404 $(39)(9.7)%
Nine months ended December 31,Nine months ended December 31,$666 $684 $(18)(2.6)%
Percentage of loss before provision for income taxesPercentage of loss before provision for income taxes(0.5)%(0.5)%Percentage of loss before provision for income taxes(0.6)%(0.6)%
We estimate our annual effective tax rate at the end of each quarter. In estimating the annual effective tax rate, we consider, among other things, annual pre-tax income, permanent tax differences, the geographic mix of pre-tax income and the application and interpretations of existing tax laws. We record the tax effect of certain discrete items, which are unusual or occur infrequently, in the interim period in which they occur, including changes in judgment about deferred tax valuation allowances. The determination of the effective tax rate reflects tax expense and benefit generated in certain domestic and foreign jurisdictions. However, jurisdictions with a year-to-date loss where no tax benefit can be recognized are excluded from the annual effective tax rate.
Liquidity and Capital Resources
As of September 30,December 31, 2020, we had $159.4$152.5 million of cash, cash equivalents, and investments. In addition, as of September 30,December 31, 2020, we had restricted cash including $8.6 million in support of letter of credits securing leases for office facilities and $6.9 million held in escrow for our acquisition of Wavecell in July 2019, pursuant to the terms of the acquisition agreement.
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During the three months ended September 30,December 31, 2020, $3.5 million of restricted cash was released, and the remaining amount of $6.9 million held in escrow for our acquisition of Wavecell is due to bewas released in January 2021. By comparison, at March 31, 2020, we had $186.9 million of cash, cash equivalents, and investments as well asand $19.0 million of restricted cash.
On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (the "CARES Act") was passed into law, which amended portions of relevant tax laws and provided relief to certain qualifying entities. In connection with the CARES Act, the Company elected to defer certain employer payroll taxes, which is expected to reducereduced cash usage by over $4$5.0 million throughout fiscal 2021.through December 31, 2020. The amounts deferred will be remitted to tax authorities during the third quarter of fiscal 2022 and fiscal 2023, respectively, when they become due. Other jurisdictions around the world have also provided similar tax relief, which the Company has elected to receive, where applicable; these benefits have a lesser impact to our expected cash flows during fiscal 2021.
In June 2020, the Company offered its employees a limited opportunity to receive a portion of their cash salary in shares of the Company's common stock. Based on employee elected participation, we expect lower cash usage from payroll compensation of over $4 million during fiscal 2021. Currently, the Company does not expect to offer this program beyond fiscal 2021. In addition, for fiscal 2021, the Company's executives received performance share units in place of a cash bonus plan. The timing of bonus payments for all other eligible employees was changed to semi-annually (in the third and first quarter of each fiscal year) from quarterly as in prior fiscal years.
During the fourth quarter of fiscal 2021, we expect to receive $6.4 million of operating cash inflows from our Lease Assignment. Refer to Note 7. Leases in our accompanying condensed consolidated financial statements in Item 1 of this Form 10-Q.
We believe that our existing cash, cash equivalents, and investment balances, and our anticipated cash flows from operations will be sufficient to meet our working capital and expenditure requirements for the next 12 months.
Period-over-Period Changes
Net cash used in operating activities for the sixnine months ended September 30,December 31, 2020, was $13.1$14.9 million, compared with $44.5$62.8 million in the sixnine months ended September 30,December 31, 2019. Cash used in operating activities was affected by:
the amount of net income or loss;
the amount of depreciation and amortization;
the amortization associated with deferred sales commissions, debt discount and issuance costs;
the expense associated with stock options and stock-based awards;compensation; and
changes in working capital accounts, particularly in the timing of collections from receivable and payments of obligations, such as commissions.
During the sixnine months ended September 30,December 31, 2020, net cash used in operating activities was primarily related to the net loss of $80.3$120.6 million, net cash outflow from sales commissions of $14.0$21.1 million, which were partially offset by non-cash charges such
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as stock-based compensation expense of $48.1$74.9 million, depreciation and amortization of $22.6$34.1 million, amortization of debt discount of $8.3$12.6 million, and operating lease expenses of $7.6$11.5 million.
Net cash used in investing activities was $11.5$27.1 million in the sixnine months ended September 30,December 31, 2020, compared with $59.9$84.8 million in the sixnine months ended September 30,December 31, 2019. The cash used in investing activities during the sixnine months ended September 30,December 31, 2020, was related to capitalized internal software development costs of $16.2$22.9 million, purchases of $4.2$5.0 million of property and equipment, and $3.5 million release of cash held in escrow associated with an acquisition during the second quarter of fiscal 2020, partially offset by $12.3$4.2 million of proceeds from maturities and sales of investments, net of purchase.
Net cash provided by financing activities was $4.6$5.9 million in the sixnine months ended September 30,December 31, 2020, compared with $0.5$65.8 million in the sixnine months ended September 30,December 31, 2019. Cash provided by financing activities for the sixnine months ended September 20,December 31, 2020 was primarily related to the proceeds from issuance of common stock under the ESPP.
CRITICAL ACCOUNTING POLICIES & ESTIMATES
The discussion and analysis of our financial condition and results of operations are based upon our condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, and related disclosures of assets and liabilities. On an on-going basis, we evaluate our critical accounting policies and estimates. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.
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With the exception of changes described within Part I, Item 1, Note 2, "Summary of Significant Accounting Policies", due to the adoption of ASU 2016-03, there have been no significant changes during the three months ended September 30,December 31, 2020, to our critical accounting policies and estimates previously disclosed in our Form 10-K for the fiscal year ended March 31, 2020.
RECENTLY ADOPTEDNEW ACCOUNTING PRONOUNCEMENTS
SeeFor a discussion of recently adopted accounting pronouncements and recent accounting pronouncements not yet adopted, see Item 1 of Part I, "Notes to Unaudited Condensed Consolidated Financial Statements - Note 2 - Summary of Significant Accounting Policies."
RECENT ACCOUNTING PRONOUNCEMENTS
See Item 1 of Part I, "Notes to Unaudited Condensed Consolidated Financial Statements - Note 2 - Summary of Significant Accounting Policies."
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Interest Rate Fluctuation Risk
We had cash, cash equivalents, restricted cash, and investments totaling $175.0$168.0 million as of September 30,December 31, 2020. Cash equivalents and investments were invested primarily in money market funds, U.S. treasury, commercial paper, and corporate bonds. Our investment policy is focused on the preservation of capital and supporting our liquidity needs. Under the policy, we invest in highly rated securities, while limiting the amount of credit exposure to any one issuer other than the U.S. government. We do not invest in financial instruments for trading or speculative purposes, nor do we use leveraged financial instruments. We utilize external investment managers who adhere to the guidelines of our investment policy. A hypothetical 10% change in interest rates would not have a material impact on the value of our cash, cash equivalents, or available-for-sale investments.
TheAs of December 31, 2020, the Company issuedhad $362.5 million or aggregate principal amount of convertible senior notes ofoutstanding, which thehad an estimated fair value as of September 30, 2020 was $336.7$527.8 million. The fair value of the convertible senior notes is subject to interest rate risk, market risk, and other factors due to the conversion feature. The fair value of the convertible senior notes will generally increase as our common stock price increases and will generally decrease as our common stock price declines. The interest and market value changes affect the fair value of the convertible senior notes but do not impact our financial position, cash flows, or results of operations due to the fixed nature of the debt obligation. Additionally, we carry the convertible senior notes at face value less unamortized discount on our consolidated balance sheets, and we present the fair value for required disclosure purposes only.
Foreign Currency Exchange Risk
We have foreign currency risks related to our revenue and operating expenses denominated in currencies other than the U.S. dollar, primarily the British Pound, causing both our revenue and our operating results to be impacted by fluctuations in the exchange rates.
Gains or losses from the revaluation of certain cash balances, accounts receivable balances, and intercompany balances that are denominated in these currencies impact our net income (loss). A hypothetical decrease in all foreign currencies against the US dollar of 10% would not result in a material foreign currency loss on foreign-denominated balances at September 30,for the three and nine months ended December 31, 2020. As
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our foreign operations expand, our results may be more impacted by fluctuations in the exchange rates of the currencies in which we do business.
At this time, we do not, but we may in the future, enter into financial instruments to hedge our foreign currency exchange risk.
ITEM 4. CONTROLS AND PROCEDURES
Evaluation of Effectiveness of Disclosure Controls and Procedures
We maintain disclosure controls and procedures as defined in Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934 (Disclosure Controls) that are designed to ensure that information we are required to disclose in reports filed or submitted under the Securities and Exchange Act of 1934 is accumulated and communicated to management, including our principal executive and principal financial officers, as appropriate, to allow timely decisions regarding required disclosure, and that such information is recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms.
As of the end of the period covered by this Quarterly Report on Form 10-Q, under the supervision of our Chief Executive Officer and our Chief Financial Officer, we evaluated the effectiveness of our Disclosure Controls. Based on this evaluation, our Chief Executive Officer and our Chief Financial Officer have concluded that our Disclosure Controls were effective as of September 30,December 31, 2020.
Limitations on the Effectiveness of Controls
Our management, including the Chief Executive Officer and Chief Financial Officer, do not expect that our Disclosure Controls or internal control over financial reporting will prevent all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system's objectives will be met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be
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considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, have been detected.
Changes in Internal Control over Financial Reporting
During the secondthird quarter of fiscal year 2021, there were no changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
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PART II. OTHER INFORMATION
ITEM 1. LEGAL PROCEEDINGS
The information set forth in Note 8, “Legal Proceedings” of Notes to Unaudited Condensed Consolidated Financial Statements under ITEM 1. FINANCIAL STATEMENTS of PART I is incorporated by reference in response to this item.
ITEM 1A. RISK FACTORS
There have been no material changes from the risk factors previously disclosed in our annual report on Form 10-K for the fiscal year ended March 31, 2020, and on our quarterly report on Form 10-Q for the three-month periodthree months ended June 30, 2020.
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
None.
ITEM 3. DEFAULTS UPON SENIOR SECURITIES
None.
ITEM 4. MINE SAFETY DISCLOSURES
None.
ITEM 5. OTHER INFORMATION
None.
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ITEM 6. EXHIBITS
Exhibit
Number
Description
3.1
3.2
4.1
10.1
10.2
10.3
10.4
10.510.4
31.1
31.2
32.1
32.2
101The following materials from the 8x8, Inc. Quarterly Report on Form 10-Q for the quarter ended June 30, 2020, formatted in iXBRL (Inline eXtensible Business Reporting Language):
(i) Condensed Consolidated Balance Sheets as of June 30, 2020 and March 31, 2020; (ii) Condensed Consolidated Statements of Operations for the three months ended June 30, 2020 and 2019; (iii) Condensed Consolidated Statements of Comprehensive Loss for the three months ended June 30, 2020 and 2019; (iv) Condensed Consolidated Statements of Stockholders' Equity for the three months ended June 30, 2020 and 2019; (v) Condensed Consolidated Statements of Cash Flows for the three months ended June 30, 2020 and 2019; and (vi) notes to unaudited condensed consolidated financial statements.
104Cover Page Interactive Data File, formatted in iXBRL and contained in Exhibit 101.
*Management contract or compensatory plan or arrangement.
+Furnished herewith.
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SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
Date: OctoberJanuary 29, 20202021
8X8, INC. 
By: /s/ Samuel Wilson
Samuel Wilson
Chief Financial Officer
(Principal Financial, Accounting and Duly Authorized Officer)

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