UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K/A

(Amendment No. 1)

(Mark One)

Commission file number: 001-35263

AMERICAN REALTY CAPITAL PROPERTIES, INC.

(Exact name of registrant as specified in its charter)

Securities registered pursuant to Section 12(g) of the Securities Exchange Act of 1934:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act of 1933. Yes ¨   No x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934. Yes ¨   No x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x   No ¨

Indicate by check mark whether the registrant submitted electronically and posted on its corporate Web Site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x   No ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See definition of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨   No x

The aggregate market value of the registrant's common stock held by non-affiliates of the registrant as of June 30, 2012 was $88.2 million.

The number of outstanding shares of the registrant’s common stock on September 30, 2013 was 185,448,022 shares.

EXPLANATORY NOTE

This Amendment No. 1 on Form 10-K/A (this “Amendment”) amends our Annual Report on Form 10-K for the fiscal year ended December 31, 2012, that was filed with the Securities and Exchange Commission on February 28, 2013 (the “Original Filing”). We are filing this Amendment to include certain information required by Regulation S-X that was not included in the Original Filing.

Except as set forth in Part IV below, no other changes are made to the Original Filing. The Original Filing continues to speak as of the date of the Original Filing. Unless expressly stated, this Amendment does not reflect events occurring after the filing date of the Original Filing, nor does it modify or update in any way the disclosures contained in the Original Filing.

PART IV

Item 15. Exhibits and Financial Statement Schedules.

The following financial statements are being presented pursuant to section 2340 of the Securities and Exchange Commission — Division of Corporation Finance’s Financial Reporting Manual because RBS Citizens, N.A. is a significant lessee of American Realty Capital Properties, Inc. as of December 31, 2012. The following financial statements are unaudited and the information contained therein is derived entirely from information that is publicly available at www.fdic.gov/bank/statistical/.

RBS CITIZENS, N.A.

CONSOLIDATED BALANCE SHEETS

RBS CITIZENS, N.A.

CONSOLIDATED INCOME STATEMENTS

(In thousands)

RBS CITIZENS, N.A.

CONSOLIDATED CHANGES IN BANK EQUITY CAPITAL

(In thousands)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this Amendment No. 1 to its Annual Report on Form 10-K to be signed on its behalf by the undersigned thereunto duly authorized on this 7th day of October, 2013.

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this Amendment No. 1 to its Annual Report on Form 10-K has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.