Performing Agreed-Upon Procedures Engagements That Address the Completeness, Accuracy, or Consistency of XBRL-Tagged Data – SOP 09-1

On January 30, 2009, the SEC issued a release adopting final rules, "Interactive Data to Improve Financial Reporting" (SEC rules), that require issuers to provide their financial statements to the SEC and on their corporate Web sites in interactive data format using eXtensible Business Reporting Language (XBRL-tagged data).

This SOP provides practitioners with guidance on performing agreed-upon procedures engagements that address the completeness, accuracy, or consistency of an entity's XBRL-tagged data of information as of a specified date and for a specified period. The engagement is performed under AT section 201, Agreed- Upon Procedures Engagements (AICPA, Professional Standards, vol. 1) and this SOP includes guidance to assist practitioners in applying certain aspects of AT section 201 to the subject matter of XBRL.

The appendices cover practical details such as:

• Illustrative Engagement Letter
• Illustrative Representation Letter
• Illustrative Procedures and Findings
• Glossary