What is the main purpose of this 8-K filing?

The primary purpose of this 8-K filing is to provide financial information from ADP's Quarterly Report on Form 10-Q for the quarter ended March 31, 2007, formatted in XBRL (eXtensible Business Reporting Language). This is primarily for testing the XBRL format and technology.

Is this filing reporting new financial results for ADP?

No, this filing does not present new or updated financial results. It is providing data that has already been reported in the Form 10-Q filed on May 9, 2007, but in a different, XBRL-formatted presentation for testing purposes.

What financial statements are included in the XBRL exhibit?

The XBRL exhibit includes the Statements of Consolidated Earnings for the three and nine months ended March 31, 2007 and 2006, the Consolidated Balance Sheets at March 31, 2007 and June 30, 2006, and the Statements of Consolidated Cash Flows for the nine months ended March 31, 2007 and 2006.

ADP 8-K SEC Disclosure — May 30, 2007

Q: Should I use the financial information in this 8-K for investment decisions?

No, absolutely not. ADP explicitly states in the filing that investors should *not* rely on the information in this 8-K or its XBRL exhibit for making investment decisions. Investors should continue to rely on the official filed versions of documents, such as the Form 10-Q filed on May 9, 2007.

Summary

This 8-K filing from Automatic Data Processing, Inc. (ADP) primarily serves to provide XBRL formatted data from its previously filed Form 10-Q for the quarter ended March 31, 2007. The company is testing the XBRL format and explicitly states that investors should *not* rely on the information contained within this 8-K or its XBRL exhibit for making investment decisions. Investors should continue to refer to the official Form 10-Q filed on May 9, 2007, for accurate and authoritative financial information.

Key Highlights

1ADP is filing an 8-K to provide XBRL-formatted data from its Q1 2007 10-Q.
2The XBRL data is for testing purposes related to the new reporting format.
3Investors are explicitly warned not to rely on the information in this 8-K for investment decisions.
4The official Q1 2007 financial information remains the Form 10-Q filed on May 9, 2007.
5This filing does not introduce new financial results but rather a different presentation format of existing data.
6The XBRL data includes Statements of Consolidated Earnings, Consolidated Balance Sheets, and Statements of Consolidated Cash Flows.

AUTOMATIC DATA PROCESSING INC 8-K Report, Corporate Update (May 30, 2007)

Summary

Key Highlights

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