Exhibit 99.1

CEO CERTIFICATION OF PERIODIC REPORT

I, Lawrence J. Mosner, Chairman of the Board of Directors and Chief Executive Officer of Deluxe Corporation (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

(1) the Quarterly Report on Form 10-Q of the Company for the quarterly period ended June 30, 2002 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); 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:    August 12, 2002	/s/     LAWRENCE J. MOSNER
	Lawrence J. Mosner Chairman of the Board of Directors and Chief Executive Officer