Reg FD Disclosure

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): November 15, 2021 Automatic Data Processing, Inc. (Exact name of registrant as specified in charter) Delaware 1-5397 22-1467904 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)      One ADP Boulevard, Roseland, New Jersey                   07068          (Address of principal executive offices)                 (Zip Code) ( 973 ) 974-5000 (Registrant's telephone number, including area code) N/A (Former name or former address, if changed since last report) 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 communications 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, $0.10 Par Value (voting) ADP NASDAQ Global Select Market 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. o Item 7.01    Regulation FD Disclosure. Automatic Data Processing, Inc. (the “Company”) will deliver a presentation on November 15, 2021 beginning at 9:00 am ET in connection with its 2021 Investor Day in Roseland, New Jersey. A copy of the slide presentation is furnished as Exhibit 99 to this Current Report. A live audio webcast of the 2021 Investor Day will be available on the Company’s website at investors.adp.com beginning at 9:00 am ET on November 15, 2021 and will be available for replay following the event. The information furnished pursuant to Item 7.01 of this Current Report, including Exhibit 99 hereto, shall not be considered “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of such section, nor shall it be incorporated by reference into future filings by the Company under the Securities Act of 1933, as amended, or under the Securities Exchange Act of 1934, as amended, unless the Company expressly sets forth in such future filing that such information is to be considered “filed” or incorporated by reference therein. Item 9.01. Financial Statements and Exhibits.      (d) 99 Investor Day Slide Presentation 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/ David Kwon Date: November 15, 2021 Name: David Kwon Title: Vice President 3 Exhibit Index   Exhibit Number Description 99 Investor Day Slide Presentation 104 Cover Page Interactive Data File, embedded in Inline XBRL. 4