ADP: Financial results

Item 2.02. Results of Operations and Financial Condition. On October 28, 2026, the Registrant issued a press release announcing that the Registrant's financial results for the first quarter ended September 30, 2026 were available through an earnings release available on the Registrant's website. A copy of the Registrant's earnings release is attached hereto as Exhibit 99 and is hereby incorporated by reference. Item 9.01. Financial Statements and Exhibits. (d) Exhibit 99 Earnings Release dated October 28, 2026 issued by Automatic Data Processing, Inc. 104 Cover Page Interactive Data File, embedded in Inline XBRL. 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. AUTOMATIC DATA PROCESSING, INC. (Registrant) By: /s/ Peter Hadley Date: October 28, 2026 Name: Peter Hadley Title: Chief Financial Officer 3 Exhibit Index Exhibit Number Description 99 Earnings Release dated October 28, 2026 issued by Automatic Data Processing, Inc. 104 Cover Page Interactive Data File, embedded in Inline XBRL. 4