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): August 20, 2025

DELUXE CORPORATION

(Exact name of registrant as specified in its charter)

(651) 483-7111

Registrant's telephone number, including area code

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:

☐ Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange

Act. ☐

Section 5 - Corporate Governance and Management

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On August 20, 2025, the Board of Directors (the “Board”) of Deluxe Corporation (the “Company”) unanimously elected Michelle T. Collins to the Board, effective August 20, 2025. Ms. Collins will stand for re-election at the Company’s 2026 Annual Meeting of the Shareholders. The Board has determined that Ms. Collins qualifies as an independent director under the listing standards of the New York Stock Exchange and the Company’s director independence standards, as adopted by the Board. The Board has also determined that Ms. Collins has sufficient accounting or related financial management expertise to serve as an “audit committee financial expert” as defined by the SEC in Item 407(d)(5)(ii) of Regulation S-K. As such, Ms. Collins also qualifies as a financial expert pursuant to 303A.07 of the NYSE Listed Company Manual. Ms. Collins will serve on the Company’s Audit and Finance Committee and a second committee to be determined at a later date.

Ms. Collins recently served as Vice Chair and a member of Deloitte’s U.S. Board of Directors. During her six-year tenure on the Board, she served as the Chair of the Governance Committee and Chair of the Finance and Audit Committee. During her career with Deloitte, Ms. Collins advised across a broad spectrum of issues, including business transformations, mergers and acquisitions, enterprise risk management, financial accounting and reporting, and SEC compliance. Ms. Collins also serves as a member of the board of directors of Owens Corning. Ms. Collins earned a bachelor’s degree in accounting from Western Michigan University and is a Certified Public Accountant.

Section 7 - Regulation FD

Item 7.01 Regulation FD Disclosure.

A copy of the Company’s press release announcing the election of Ms. Collins to the Board is furnished herewith as Exhibit 99.1.

Section 9 - Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

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.

Date: August 21, 2025

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Document

FOR IMMEDIATE RELEASE

Contact:

Michelle Collins Elected to Deluxe Board of Directors

MINNEAPOLIS – (BUSINESS WIRE) – August 20, 2025 — Deluxe (NYSE: DLX), a trusted Payments and Data company, has announced the election of Michelle T. Collins to its Board of Directors.

Ms. Collins is a retired Deloitte partner with more than four decades of experience in advising and guiding companies through challenges such as business transformations, mergers and acquisitions, enterprise risk management, financial accounting and reporting, and SEC compliance. As a trusted advisor to the c-suite, audit committees, and boards of directors, she brings a history of sound judgment and a proven record helping companies navigate complex business issues, innovative growth opportunities, and technology disruption.

“Michelle has a history of innovative thinking that blends perfectly with Deluxe and the journey we are on,” said Cheryl Mayberry McKissack, Chair of the Deluxe Board of Directors. “She is known for her collaborative, focused, results-oriented approach, and adding her vast experience to our board will reap benefits across the company.”

“I am looking forward to working alongside a senior executive as accomplished and well versed in the financial world as Michelle,” said Barry McCarthy, President and CEO of Deluxe. “Her experience in guiding high-performing teams through transformation will prove invaluable to Deluxe.”

“I’m honored to be named to the board of a dynamic, growing company like Deluxe,” said Collins. “I look forward to bringing my experience and expertise to bear in helping the company realize its vision as a trusted Payments and Data company.”

Ms. Collins recently served as Vice Chair and a member of Deloitte’s U.S. Board of Directors. During her six-year tenure on the Board, she served as the Chair of the Governance Committee and Chair of the Finance and Audit Committee. She is a graduate of Western Michigan University with a BS in Accounting and a Certified Public Accountant.

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About Deluxe Corporation

Deluxe, a trusted Payments and Data company, champions business so communities thrive. Our solutions help businesses pay, get paid, and grow. For more than 100 years, Deluxe customers have relied on our solutions and platforms at all stages of their lifecycle, from start-up to maturity. Our powerful scale supports millions of small businesses, thousands of vital financial institutions and hundreds of the world’s largest consumer brands, while processing more than $2 trillion in annual payment volume. Our reach, scale and distribution channels position Deluxe to be our customers’ most trusted business partner. To learn how we can help your business, visit us at www.deluxe.com.