EXB 15 - 06.30.2012

We are aware that our report dated August 1, 2012 on our review of interim financial information of MasterCard Incorporated and its subsidiaries (the “Company”) as of June 30, 2012 and for the three and six month periods ended June 30, 2012 and 2011 and included in the Company's quarterly report on Form 10-Q for the quarter ended June 30, 2012 is incorporated by reference in its Registration Statements on Form S-8 dated June 30, 2006 (File No. 333-135572), August 9, 2006 (File No. 333-136460), and June 15, 2007 (File No. 333-143777), and the Registration Statement on Form S-3 dated November 4, 2009 (No. 333-162869).