Company: ADP
Filing Date: 2025-05-07
Form Type: 424B2
Source: 0001193125-25-114878
Chunk: 45

Company: AUTOMATIC DATA PROCESSING INC
Filing Date: 2025-05-07
Form: 424B2
Chunk 45
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 information that others may give you. We are not making an offer of these securities in any state or other jurisdiction where the offer is not permitted. You should not assume that the information contained in or incorporated by reference in this prospectus or any prospectus supplement or in any free writing prospectus is accurate as of any date other than their respective dates. Our business, financial condition, results of operations and prospects may have changed since those dates. The terms “ADP,” “we,” “us,” and “our” refer to Automatic Data Processing, Inc. and its subsidiaries. TABLE OF CONTENTS

|                                                 |     | Page |    |
| About this Prospectus                           |     |      |  1 |
| Automatic Data Processing, Inc.                 |     |      |  1 |
| Special Note on Forward-Looking Statements      |     |      |  1 |
| Risk Factors                                    |     |      |  2 |
| Use of Proceeds                                 |     |      |  2 |
| Description of Debt Securities                  |     |      |  2 |
| Plan of Distribution                            |     |      | 11 |
| Validity of Securities                          |     |      | 12 |
| Experts                                         |     |      | 12 |
| Where You Can Find More Information             |     |      | 12 |
| Incorporation of Certain Documents by Reference |     |      | 12 |

ABOUT THIS PROSPECTUS This prospectus is part of a registration statement that we filed with the SEC utilizing a “shelf” registration process. Under this shelf process, we may sell the debt securities described in this prospectus in one or more offerings. This prospectus provides you with a general description of the securities we may offer. Each time we sell securities pursuant to the registration statement, we will provide a prospectus supplement that will contain specific information about the terms of that offering. The prospectus supplement may also add, update or change information contained or incorporated by reference in this prospectus. You should read both this prospectus and any prospectus supplement together with additional information described under the heading “Where You Can Find More Information.” We have filed or incorporated by reference exhibits to the registration statement of which this prospectus forms a part. You should read the exhibits carefully for provisions that may be important to you. AUTOMATIC DATA PROCESSING, INC. Today, Automatic Data Processing, Inc. is one of the world’s leading global technology companies providing comprehensive cloud-based human capital management (H