Treasury OIG Reports

Treasury OIG Management Challenges Letters

The Treasury Office of Inspector General has published its annual Management Challenges Letter for December 2025. This document, along with historical letters dating back to 2012, outlines key areas of concern and potential risks within the Department of the Treasury and related programs, such as the RESTORE Act.

Peer Review Reports from the Office of Inspector General

The Treasury Office of Inspector General (OIG) has updated its index of peer review reports. The page includes links to letters from other government agencies regarding peer reviews of the Treasury OIG's audit systems, with the most recent dated November 27, 2024. This update appears to be informational, adding new reports to an existing index.

Treasury OIG Semiannual Reports to Congress

The Treasury Office of Inspector General (OIG) provides semiannual reports to Congress detailing its activities, major issues, and recommendations for corrective action. These reports are issued for the periods ending March 31 and September 30 each year, as mandated by the Inspector General Act of 1978.

Treasury OIG Testimonies and Other Official Documents

The Treasury Office of Inspector General (OIG) has published a list of recent testimonies and other official documents. These include findings and determinations related to the Emergency Rental Assistance Program, Coronavirus Relief Fund proceeds, and summaries of work on terrorist financing and anti-money laundering.

Treasury OIG Audit and Evaluation Reports

The Treasury Office of Inspector General (OIG) has published updated audit and evaluation reports, with the latest dated March 13, 2026. These reports cover various agencies and programs, including audits related to CARES Act pandemic relief efforts for air carriers.