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): March 11, 2013

BofI Holding, Inc.

(Exact Name of Registrant as Specified in Charter)

Registrant’s telephone number, including area code: (858) 350-6200

(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:

On March 11, 2013, BofI Holding, Inc. (“we”, “our”, or the “Company”) entered into an Equity Distribution Agreement (the “Distribution Agreement”) with each of Raymond James & Associates, Inc., JMP Securities LLC, Liquidnet, Inc., and Sandler O’Neill + Partners L.P. (the “Distribution Agents”) pursuant to which the Company may issue and sell shares of our common stock having an aggregate offering price of up to $50,000,000 from time to time through the Distribution Agents, as our sales agents.

Each time that we wish to issue and sell securities under the Distribution Agreement, we will select and notify a Distribution Agent (the “Designated Agent”) by delivery of a placement notice. If we designate any shares of common stock to be sold in any calendar quarter by a Designated Agent, the minimum dollar amount that we may designate for sale in such quarter is $5,000,000.

Upon delivery of a placement notice and subject to the terms and conditions of the Distribution Agreement, the sales, if any, of our common stock will be made in “at the market” offerings as defined in Rule 415 of the Securities Act, including sales made directly on the NASDAQ Global Select Market, the principal trading market for our common stock, or sales made to or through a market maker or through an electronic communications network or other transactions at market prices prevailing at the time of the sale, at prices related to the prevailing market prices or at negotiated prices.

We will designate the maximum dollar amount of shares of common stock to be sold through the Designated Agent, the time period during which sales are requested to be made, the minimum pricing for the shares to be sold, and any limitation on the number of shares that may be sold in any one day, each as agreed to by the Designated Agent. Subject to the terms and conditions of the Equity Distribution Agreement, the Designated Agent will use its commercially reasonable efforts to sell on our behalf all of the designated shares of common stock. We may instruct the Designated Agent not to sell our common stock, or to amend our previous designation, to the extent that the sales designated by us in any such instruction have not been completed, and the Designated Agent will use good faith efforts to implement such termination or amendment. We or the Distribution Agents, upon notice to the other party, may suspend the offering of our common stock under the Equity Distribution Agreement.

The offering pursuant to the Distribution Agreement will terminate upon the sale of all shares of common stock subject to the Distribution Agreement. The Distribution Agreement may also be terminated by us or the Distribution Agents at any time.

We will pay the Distribution Agents a commission equal to 2.5% of the gross proceeds from the sale of the common stock sold through the Distribution Agents pursuant to the Distribution Agreement and will reimburse the Distribution Agents for up to $125,000 in expenses. We have also provided the Distribution Agents with customary indemnification rights.

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The description of the Distribution Agreement contained herein does not purport to be complete and is qualified in its entirety by reference to the complete text of such agreement, which is attached to this Current Report on Form 8-K as Exhibit 1.1 and incorporated herein by reference.

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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.

Date: March 11, 2013

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EXHIBIT INDEX

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