Treasury Inspector General for Tax Administration

The Treasury Inspector General for Tax Administration (TIGTA) is an office in the United States federal government. It was established in January 1999 in accordance with the Internal Revenue Service Restructuring and Reform Act of 1998 (RRA 98) to provide independent oversight of Internal Revenue Service (IRS) activities. As mandated by RRA 98, TIGTA assumed most of the responsibilities of the IRS' former Inspection Service.