Trintech (TTPA) 20-F 2005 FY Annual report (foreign)

Exhibit 13.1

CERTIFICATION

Pursuant to 18 U.S.C. §1350, the undersigned officers of Trintech Group PLC (the “Company”), hereby certify that the Company’s Annual Report on Form 20-F for the fiscal year ended January 31, 2005 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended, and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Cyril McGuire

CYRIL MCGUIRE

Chief Executive Officer

/s/ R. Paul Byrne

R. PAUL BYRNE

Chief Financial Officer

and President

Dated: May 17, 2005

The foregoing certification is being furnished solely pursuant to 18 U.S.C. §1350 and is not being filed as part of the Report or as a separate disclosure to this statement

A signed original this written statement required by 18 U.S.C. § 1350 has been provided to Trintech Group PLC and will be retained by Trintech Group PLC and furnished to the Securities and Exchange Commission or its staff upon request.