The Unintended Consequences of Internal Controls Reporting on Tax Decision Making

This study investigates the impact of the internal controls over financial reporting requirements (ICFR) on the decision making of corporate tax executives. I examine tax executives' decisions to disclose an internal control deficiency by amending a prior year return when the internal control deficiency will be classified as either a significant deficiency or a material weakness. I also examine if tax executives' decisions are impacted by whether amending results in a refund or additional tax due. I find tax executives are less likely to disclose (amend) when the internal control deficiency is classified as a material weakness. When facing a material weakness, 16.7 percent choose not to disclose. Tax executives are also less likely to disclose (amend) when amending results in additional tax due. These results indicate the ICFR requirements may have unintended consequences. If executives do not disclose internal control deficiencies, the reliability of financial reporting is limited.