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 April 4, 2024 — Three men charged with trafficking counterfeit luxury watches imported from China April 3, 2024 — Ohio businessowner pleads guilty to tax offense related to illegal gambling businesses April 3, 2024 — York County man pleads guilty to federal drug conspiracy More press releases