Audit Firm Tenure and Fraudulent Financial Reporting

The Sarbanes-Oxley Act (2002) required the U.S. Comptroller General to study the potential effects of requiring mandatory audit firm rotation. The General Accounting Office (GAO) concludes in its recently released study of mandatory audit firm rotation that “mandatory audit firm rotation may not be the most efficient way to strengthen auditor independence” (GAO 2003, Highlights). However, the GAO also suggests that mandatory audit firm rotation could be necessary if the Sarbanes-Oxley Act's requirements do not lead to improved audit quality (GAO 2003, 5). We examine the relation between audit firm tenure and fraudulent financial reporting. Comparing firms cited for fraudulent reporting from 1990 through 2001…