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): June 5, 2014

DORAL FINANCIAL CORPORATION

(Exact name of registrant as specified in its charter)

(Former name or former address, if changed since last report)

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 (see General Instruction A.2. below):

Item 8.01. Other Events.

On June 5, 2014, Doral Financial Corporation (the “Company”) issued a press release stating that it had filed a lawsuit in the Court of First Instance of Puerto Rico and a Writ for Certification in the Puerto Rican Supreme Court, alleging that the Commonwealth of Puerto Rico illegally nullified its agreement to refund the Company more than $229 million in tax overpayments and seeking a declaratory judgment that the agreement between the Company and its subsidiaries, on the one hand, and the Puerto Rico Department of the Treasury, remains valid and binding on the Commonwealth of Puerto Rico. A copy of this press release is attached hereto as Exhibit 99.1.

FORWARD-LOOKING STATEMENTS

This communication contains forward-looking statements within the meaning of, and subject to the protection of, the Private Securities Litigation Reform Act of 1995, as amended. In addition, the Company may make forward-looking statements in its other press releases, filings with the SEC or in other public or shareholder communications and its senior management may make forward-looking statements orally to analysts, investors, the media and others.

These forward-looking statements may relate to the Company’s financial condition, results of operations, plans, objectives, future performance and business, including, but not limited to, statements with respect to the adequacy of the allowance for loan and lease losses, delinquency trends, market risk and the impact of general economic conditions, interest rate changes, capital markets conditions, capital adequacy and liquidity, and the effect of legal or regulatory proceedings, tax legislation and tax rules, deferred tax assets and related reserves, the ability to collect the tax receivables due to the Company or its subsidiaries from Puerto Rico, compliance and regulatory matters and new accounting standards and guidance on the Company’s financial condition and results of operations. Forward-looking statements can be identified by the fact that they do not relate strictly to historical or current facts, but instead represent the Company’s current expectations regarding future events. Such forward-looking statements may be generally identified by the use of words or phrases such as “would be,” “will allow,” “intends to,” “will likely result,” “are expected to,” “will continue,” “is anticipated,” “estimate,” “project,” “believe,” “expect,” “predict,” “forecast,” “anticipate,” “plan,” “outlook,” “target,” “goal,” and similar expressions and future conditional verbs such as “would,” “should,” “could,” “might,” “can” or “may” or similar expressions.

The Company cautions readers not to place undue reliance on any of these forward-looking statements since they speak only as of the date made and represent the Company’s expectations of future conditions or results and are not guarantees of future performance. The Company does not undertake and specifically disclaims any obligations to update any forward-looking statements to reflect occurrences or unanticipated events or circumstances after the date of those statements other than as required by law, including the requirements of applicable securities laws.

Forward-looking statements are, by their nature, subject to risks and uncertainties and changes in circumstances, many of which are beyond the Company’s control. Risk factors and uncertainties that could cause the Company’s actual results to differ materially from those described in forward-looking statements can be found in the Company’s Form 10-K, which was filed with the SEC on March 21, 2014 and is available on the Company’s website at www.doralbank.com, as updated from time to time with the Company’s periodic and other reports filed and to be filed with the SEC.

Item 9.01. Financial Statements and Exhibits.

SIGNATURE

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.