EXHIBIT 99.1


                CERTIFICATION PURSUANT TO 18 U.S.C SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

     In connection with Catuity, Inc. (the "Company") Quarterly Report on Form
     10-Q for the quarter ended March 31, 2003 as filed with the Securities and
     Exchange Commission on the date hereof (the "Report"), I, Michael V. Howe,
     certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to section
     906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

     (1)  The Report fully complies with the requirements of section 13(a) or
          15(d) of the Securities Exchange Act of 1934; and

     (2)  The information contained in the Report fairly presents, in all
          material respects, the financial condition and results of operations
          of the Company.




     Date: 05/02/03
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                                         /s/ Michael V. Howe
                                         -------------------
                                         Michael V. Howe
                                         President and Chief Executive Officer