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 26, 2013

CLIFTON SAVINGS BANCORP, INC.

(Exact Name of Registrant as Specified in Its Charter)

1433 Van Houten Avenue, Clifton, New Jersey 07015

(Address of principal executive offices) (Zip Code)

(973) 473-2200

(Registrant’s telephone number, including area code)

Not Applicable

(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:

(a) On June 26, 2013, the Audit/Compliance Committee of the Board of Directors of Clifton Savings Bancorp, Inc. (the “Company”) voted to dismiss ParenteBeard LLC, the independent auditors for the Company, effective as of June 26, 2013.

The audit reports of ParenteBeard LLC on the consolidated financial statements of the Company for the years ended March 31, 2013 and 2012 did not contain an adverse opinion or a disclaimer of opinion, and were not qualified or modified as to uncertainty, audit scope or accounting principles. During the two most recent fiscal years ended March 31, 2013 and 2012 and through the subsequent interim period preceding June 26, 2013, there were: (1) no disagreements between the Company and ParenteBeard LLC on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedures, which disagreements, if not resolved to the satisfaction of ParenteBeard LLC would have caused them to make reference thereto in their reports on the Company’s financial statements for such years, and (2) no reportable events within the meaning set forth in Item 304(a)(1)(v) of Regulation S-K.

The Company has provided ParenteBeard LLC a copy of the disclosures in this Form 8-K and has requested that ParenteBeard LLC furnish it with a letter addressed to the Securities and Exchange Commission stating whether or not it agrees with the Company’s statements in this Item 4.01. A copy of the letter dated June 27, 2013 is filed as Exhibit 16.0 to this Form 8-K.

(b) On June 26, 2013, the Audit/Compliance Committee of the Board of Directors of the Company appointed BDO USA, LLP as the Company’s independent registered public accounting firm. During the Company’s fiscal years ended March 31, 2013 and 2012 and the subsequent interim period preceding the engagement of BDO USA, LLP, the Company did not consult with BDO USA, LLP regarding: (1) the application of accounting principles to a specified transaction, either completed or proposed; (2) the type of audit opinion that might be rendered on the Company’s financial statements, and BDO USA, LLP did not provide any written report or oral advice that BDO USA, LLP concluded was an important factor considered by the Company in reaching a decision as to any such accounting, auditing or financial reporting issue; or (3) any matter that was either the subject of a disagreement with ParenteBeard LLC on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure or the subject of a reportable event.

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 thereunto duly authorized.