8-K

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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                                    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): March 13, 2003



                        Automatic Data Processing, Inc.
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          (Exact name of registrant as specified in its charter)

   Delaware                       1-5397                         22-1467904
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   (State or other                (Commission                    (IRS Employer
   jurisdiction of                File Number)                   Identification
   incorporation)                                                 No.)



  One ADP Boulevard, Roseland, New Jersey                            07068
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  (Address of principal executive offices)                         (Zip Code)


Registrant's telephone number, including area code: (973) 974-5000
                                                    ----------------------------
                                 N/A
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       (Former name or former address, if changed since last report)





Item 7.  Financial Statements and Exhibits

(c)      Exhibits


         Exhibit Number                       Description
         --------------      --------------------------------------------------
              99.1           Press Release dated March 13, 2003, issued by
                             Automatic Data Processing, Inc. (the "Registrant").



Item 9.  Regulation FD Disclosure

          On March 13, 2003, the Registrant issued a press release announcing
revised revenue and earnings per share guidance and outlook for fiscal 2003.
A copy of the Registrant's press release is attached hereto as Exhibit 99.1 and
hereby incorporated by reference. In accordance with General Instruction B.2 of
Form 8-K, the information in this Form 8-K is being furnished under Item 9 and
shall not be deemed to be "filed" for the purposes of Section 18 of the
Securities and Exchange Act of 1934 (the "Exchange Act"), or otherwise subject
to the liabilities of such section, nor shall such information be deemed
incorporated by reference in any filing under the Securities Act of 1933 or the
Exchange Act, except as shall be expressly set forth by specific reference in
such a filing.






                                    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.

Date:  March 13, 2003

                                         AUTOMATIC DATA PROCESSING, INC.


                                         By:  /s/ James B. Benson
                                         -------------------------------
                                         Name:  James B. Benson
                                         Title: Corporate Vice President







                                 Exhibit Index
                                 -------------

        Exhibit Number                        Description
        --------------     ---------------------------------------------
           99.1            Press Release dated March 13, 2003, issued by
                           Automatic Data Processing, Inc.

EX-99.1

THE FOLLOWING IS THE TEXT OF A PRESS RELEASE MADE BY THE REGISTRANT ON MARCH 13,
2003:

ADP ANNOUNCES ACCELERATION OF INVESTMENTS IN CORE BUSINESSES;
LOWERS EPS GUIDANCE FOR FISCAL 2003 TO $1.68 - $1.73

         ROSELAND, NJ, March 13, 2003 -- Automatic Data Processing, Inc.
(NYSE:ADP), announced today that it is lowering its guidance for fiscal 2003 to
the range of $1.68 - $1.73 earnings per share compared with $1.75 last year, and
that revenues will be flat with last year, compared with the previous guidance
of low single digit revenue and earnings per share growth over fiscal 2002.

         The change in guidance is due, in part, to continued weak economic
conditions and their impact on the Employer and Brokerage Services segments, but
primarily from an acceleration of activities in three critical areas: 1)
increasing investments in highly attractive growth initiatives; 2) cost
reductions in selected areas including exiting a few non-performing product
lines; and 3) investing in the retention of quality associates.

         Arthur F. Weinbach, chairman and chief executive officer, commented,
"We have decided to accelerate investments to enhance our leadership position in
a number of our most critical markets despite the current weak environment.
Therefore, we will substantially increase our investments in our most promising
growth areas, particularly in Employer Services with products like our eXpert
services suite, Total Choice and Enterprise.

         "In those areas where growth has been short of our expectations we will
reduce or freeze our headcount and improve our productivity. In a very limited
number of cases we will aggressively exit non-performing product lines and
non-strategic businesses to allow us to focus our resources on more promising
growth areas.

         "Retaining our quality associates is critical to our business. We are
committed to investing in our associates to ensure our success. We will take
actions that positively impact a broad range of associates as we refocus on our
Employer of Choice initiatives.

         "While it is premature to discuss the impact of these actions in detail
at this time, I estimate we will spend between $150 to $200 million over the
next twelve to eighteen months.

         "The most important message here is that ADP is a very strong company
with excellent growth prospects. These actions are being taken to strengthen our
powerful position and not allow short-term economic weakness to influence our
long-term strengths. Most of the issues facing us today are cyclical, and
employment, brokerage activity and interest rates will all rebound. ADP's
financial strength provides us the ability to invest and compete without waiting
for an economic upturn. I am very optimistic about ADP's future and its growth,"
Mr. Weinbach concluded.

         ADP, with $7 billion in revenues and 500,000 clients, is one of the
largest independent computing services firms in the world.

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This release contains "forward-looking statements" based on management's
expectations and assumptions that are subject to risks and uncertainties that
may cause actual results to differ from those expressed. Factors that could
cause differences include: ADP's success in obtaining, retaining and selling
additional services to clients; the pricing of products and services; changes in
laws regulating payroll taxes and employee benefits; overall economic trends,
including interest rate and foreign currency trends; stock market activity; auto
sales and related industry changes; employment levels; changes in technology;
availability of skilled technical associates; and the impact of new
acquisitions. ADP disclaims any obligation to update any forward-looking
statements, whether as a result of new information, future events or otherwise.