UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 3, 2014

Walker & Dunlop, Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (301) 215-5500

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Item 1.01. Entry into a Material Definitive Agreement.

Bank of America Warehousing Agreement Amendment

On November 3, 2014, Walker & Dunlop, LLC, an operating subsidiary of Walker & Dunlop, Inc., entered into an Eighth Amendment to Warehousing Credit and Security Agreement (the “Amendment”) with Bank of America, N.A., as credit agent and lender (the “Bank of America”). The Amendment amends that certain Warehousing Credit and Security Agreement, dated as of September 4, 2012, by and among Walker & Dunlop, LLC, Bank of America and the lenders party thereto (as amended from time to time, the “Warehousing Agreement”).

The Amendment, among other things, (i) temporarily increases the warehousing credit limit under the Warehousing Agreement to $725,000,000 for the period from November 3, 2014 through December 5, 2014, after which the warehousing credit limit will return to $425,000,000, and (ii) extends the expiration date of the Warehousing Agreement from November 3, 2014 to November 2, 2015. The Amendment also contains customary representations and warranties of Walker & Dunlop, LLC.

The foregoing description of the Amendment does not purport to be complete and is qualified in its entirety by reference to the Amendment, which is filed as Exhibit 10.1 to this Current Report on Form 8-K.

Bank of America and its affiliates have various relationships with the Company involving the provision of financial services, including other credit facilities with the Company and its affiliates, cash management, investment banking, trust and other services.

Item 2.03. Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

The information set forth in Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 2.03.

Item 9.01. Financial Statements and Exhibits.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

EXHIBIT INDEX