CONSENT OF INDEPENDENT AUDITORS

We consent to the reference to our firm under the caption "Experts" in Amendment
No. 1 to the Registration Statement (Form S-3) and related Prospectus of
Billserv, Inc. for the registration of 4,146,154 shares of its common stock and
to the incorporation by reference therein of our report dated February 5, 2002,
except for Note 18, as to which the date is November 14, 2002, with respect to
the consolidated financial statements of Billserv, Inc. included in its Annual
Report (Form 10-K/A) for the year ended December 31, 2001, filed with the
Securities and Exchange Commission.


                                        /s/ Ernst & Young LLP
                                        ----------------------------------------
                                        Ernst & Young LLP

San Antonio, Texas
November 14, 2002

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