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 Sept. 26, 2024 — Pennsylvania man sentenced to 78 months in prison for $4.8 million CARES Act loan fraud scheme Sept. 26, 2024 — Former commercial airline pilot sentenced to over three years in prison for tax evasion Sept. 26, 2024 — North Carolina clinic owner is sentenced to 52 months in prison for defrauding Medicaid More press releases