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) October 12, 2014

SPS Commerce, Inc.

(Exact name of registrant as specified in its charter)

Registrant’s Telephone Number, Including Area Code (612) 435-9400

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):

On October 12, 2014, we, together with our wholly owned subsidiary SPS Commerce Australia Pty Ltd, entered into and completed an asset purchase agreement with Leadtec Systems Australia Pty Ltd, known as Leadtec, and its affiliates, Advanced Barcode Solutions Pty Ltd, Scott Needham and Leading Technology Group Pty Ltd. Under the asset purchase agreement, we purchased and acquired from Leadtec substantially all of the assets used in Leadtec’s business. Leadtec is in the business of cloud-based integration solutions. We paid Leadtec $12.7 million in cash and issued 43,595 shares of our common stock to Leadtec and assumed certain liabilities of Leadtec.

This description of the asset purchase agreement does not purport to be complete and is qualified in its entirety by reference to the asset purchase agreement, which is attached as Exhibit 2.1 to this report and is incorporated herein by reference.

The information set forth under Item 1.01 of this report is incorporated herein by reference. A copy of the press release announcing the completion of the acquisition is also attached to this report as Exhibit 99.1.

Pursuant to the asset purchase agreement described in Item 1.01, on October 12, 2014 we issued an aggregate of 43,595 shares of our common stock to Leadtec in an unregistered transaction. We did so in reliance upon the exemption contained in Section 4(2) of the Securities Act of 1933, as amended, as a transaction not involving a public offering, and Rule 506 promulgated thereunder, in view of the absence of a general solicitation, the limited number of offerees and purchasers, and the representations and agreements of Leadtec in the asset purchase agreement.

The following financial statements are filed herewith as Exhibit 99.2:

The following financial statements are filed herewith as Exhibit 99.3:

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.

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