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Abbreviation
TIGTA
Agencies
Internal Revenue Service
Federal Agency
Yes
Location
United States
What to Report to the OIG Hotline
Reports of waste, fraud, abuse, misconduct, or whistleblower reprisal relating to the programs and operations of the Internal Revenue Service (IRS) may be made to the Treasury Inspector General for Tax Administration’s (TIGTA) Hotline. TIGTA has jurisdiction over protected disclosures and allegations of whistleblower retaliation involving IRS employees, contractors, and subcontractors.
What Not to Report to the OIG Hotline
Tax-related matters including alleged tax fraud or underreporting of taxes, unless an IRS employee is involved in the alleged wrongdoing.
Hotline Page
Whistleblower Protection Page
2025
Audit
Treasury Inspector General for Tax Administration
Internal Revenue Service
Nevada Man Who Stole Over $7M in Treasury Checks, Sentenced to Six Years in Prison
Article Type
Investigative Press Release
Publish Date
Bronx Tax Preparer Sentenced To Prison For Filing Tens Of Thousands Of False Tax Returns Causing $145 Million In Fraudulent Tax Loss
Article Type
Investigative Press Release
Publish Date
Four Individuals Charged in $63 Million Mail Theft Conspiracy, Including Two Postal Employees
Article Type
Investigative Press Release
Publish Date
Fort Wayne Woman Ordered to Repay Funds From PPP Loan Fraud
Article Type
Investigative Press Release
Publish Date
Former IRS Employee Ordered to Repay Funds From PPP Loan Fraud
Article Type
Investigative Press Release
Publish Date
KC Man Pleads Guilty to Bank Fraud in Stolen U.S. Treasury Check Scheme
Article Type
Investigative Press Release
Publish Date
Semiannual Report to Congress
2025
Semiannual Report
Treasury Inspector General for Tax Administration
Internal Revenue Service
Thousands of Notifications to Taxpayers Affected by the Large-Scale Data Breach Were Returned Undeliverable
2025
2025-IE-R019
Inspection / Evaluation
Treasury Inspector General for Tax Administration
Internal Revenue Service
Limited Progress Has Been Made Expanding the Use of Electronic Signature Services on Non-Tax Forms
2025
2025-208-023
Audit
Treasury Inspector General for Tax Administration
Internal Revenue Service