Shareholder Vote

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): April 23, 2026 DELUXE CORPORATION (Exact name of registrant as specified in its charter) MN 1-7945 41-0216800 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) File Number) Identification No.) 801 S. Marquette Ave. , Minneapolis , MN 55402-2807 (Address of principal executive offices) (Zip Code) ( 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: Title of each class Trading symbol(s) Name of each exchange on which registered Common stock, par value $1.00 per share DLX NYSE 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 5.07 Submission of Matters to a Vote of Security Holders . The Company held its annual shareholders' meeting on April 23, 2026. 37,762,269 shares were represented (82.6% of the 45,693,817 shares outstanding and entitled to vote at the meeting). Four items were considered at the meeting, and the results of the voting were as follows: (1) Election of Directors: Shareholders were asked to elect nine directors to hold office until the 2027 annual meeting of shareholders. The nominees for director and the results of the voting were as follows: For Withheld Broker non-vote Angela L. Brown 33,546,712  300,193  3,915,364  Michelle T. Collins 33,707,691  139,214  3,915,364  Hugh S. Cummins III 33,711,612  135,293  3,915,364  Paul R. Garcia 32,958,101  888,804  3,915,364  Barry C. McCarthy 33,126,697  720,208  3,915,364  Thomas J. Reddin 32,097,310  1,749,595  3,915,364  Morgan M. Schuessler, Jr. 33,549,704  297,201  3,915,364  John L. Stauch 32,972,908  873,997  3,915,364  Telisa L. Yancy 33,706,728  140,177  3,915,364  (2) A non-binding resolution to approve the compensation of the named executive officers, as described in the proxy statement filed in connection with the annual meeting: For 32,658,672  Against 1,070,976  Abstain 117,257  Broker non-vote 3,915,364  (3) Approval of Amendment No. 3 to the Deluxe Corporation 2022 Stock Incentive Plan: For 32,029,546  Against 1,715,185  Abstain 102,174  Broker non-vote 3,915,364  (4) Ratification of the appointment of PricewaterhouseCoopers LLP as the independent registered public accounting firm for the fiscal year ending December 31, 2026: For 36,667,014  Against 970,096  Abstain 125,159  2 Section 9 - Financial Statements and Exhibits Item 9.01 Financial Statements and Exhibits. (d) Exhibits. Exhibit Number Description 101.INS XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document 101.SCH XBRL Taxonomy Extension Schema Document 101.LAB XBRL Taxonomy Extension Label Linkbase Document 101.PRE XBRL Taxonomy Extension Presentation Linkbase Document 104 Cover page interactive data file (formatted as Inline XBRL and contained in Exhibit 101) 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. Date: April 24, 2026 DELUXE CORPORATION /s/ Jeffrey L. Cotter Jeffrey L. Cotter Senior Vice President, Chief Administrative Officer and General Counsel 4