EXHIBIT 23


 CONSENT OF INDEPENDENT REGISTERED
   PUBLIC ACCOUNTING FIRM


 We consent to the incorporation by reference in the Post-Effective Amendment
 No. 1 to Registration Statement No. 333-63912 of Jack Henry & Associates,
 Inc. on Form S-8 of our report dated June 15, 2004, appearing in this Annual
 Report on Form 11-K of Jack Henry & Associates, Inc. 401(k) Retirement
 Savings Plan for the year ended December 31, 2003.

 /s/ DELOITTE & TOUCHE LLP

 St. Louis, Missouri
 June 28, 2004