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 18, 2024 — Sacramento man pleads guilty to money laundering April 18, 2024 — Chicago-area tax preparer indicted for false tax returns April 17, 2024 — Furniture company employee sentenced to 5 years in prison for embezzling more than 26 million dollars from employer More press releases