Treasury Inspector General for Tax Administration TIGTA Schatzinspektorat für Steuerverwaltung Treasury Inspector General for Tax Administration Inspector General del Tesoro para la Administración Tributaria Inspector General del Tesoro para la Administración Tributaria Inspecteur général du Trésor pour l'administration fiscale מבקר האוצר הכללי למנהל המסים कर व्यवस्था के लिए ट्रेजरी इंस्पेक्टर जनरल 税務監督官事務局 Inspetor Geral do Tesouro para Administração Tributária 税务管理司库务检查总监 TIGTA Treasury Inspector General for Tax Administration The Treasury Inspector General for Tax Administration (TIGTA) was established under the IRS Restructuring and Reform Act of 1998 to provide independent oversight of IRS activities. TIGTA promotes the economy, efficiency, and effectiveness in the administration of the internal revenue laws. It is also committed to the prevention and detection of fraud, waste, and abuse within the IRS and related entities.