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 May 2, 2024 — Ohio man pleads guilty to operating an illegal gambling business and tax fraud May 2, 2024 — Five plead guilty in multi-million dollar conspiracy to launder computer fraud proceeds offshore to Chinese companies May 2, 2024 — Purported member of the Cartier family and five Colombian nationals charged for their roles in international money laundering and narcotics conspiracies More press releases