IRS Criminal Investigation (CI) serves the American public by investigating potential criminal violations of the Internal Revenue Code and related financial crimes in a manner that fosters confidence in the tax system and compliance with the law. Report tax fraud Identify tax schemes Report tax fraud Voluntarily disclose What we do About Criminal Investigation What we investigate Investigation process J5: Our international partnership Latest news Dec. 3, 2024 — Cary businessman sentenced to prison for over $1 million in tax evasion scheme Dec. 2, 2024 — New York doctor charged for receiving kickbacks Nov. 27, 2024 — West Tennessee tax preparers indicted for schemes to defraud government of over $65 million in COVID-19 relief More press releases