Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-04583 of Equifax Inc. on Form S-8 of our report dated June 18, 2007, appearing in this Annual Report on Form 11-K of Equifax Inc. 401(k) Plan for the year ended December 31, 2006.

/s/SMITH & HOWARD, P.C.
Atlanta, GA
June 27, 2007

 

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