EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

The Board of Directors and Shareholders of Moody’s Corporation:

We consent to the incorporation by reference in the registration statements on Forms S-3 and S-8 (No.333-168453, No. 333-170727, No. 333-170753, No. 333-145127, No. 333-126564, No. 333-103496,No. 333-47848, No. 333-81121, No. 333-68555, No. 333-64653, No. 333-60737, No. 333-57915,No. 333-57267) of Moody’s Corporation of our report dated February 25, 2013, with respect to the consolidated balance sheets of Moody’s Corporation as of December 31, 2012 and 2011, and the related consolidated statements of operations, comprehensive income, shareholders’ equity (deficit), and cash flows for each of the years in the three-year period ended December 31, 2012, and the effectiveness of internal control over financial reporting as of December 31, 2012, which report appears in the December 31, 2012 annual report on Form 10-K of Moody’s Corporation.

/s/ KPMG LLP

New York, New York

February 25, 2013

MOODY’S 2012 10-K