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 Nov. 15, 2024 — Washington state resident sentenced to 14 years in prison for role in fentanyl trafficking conspiracy Nov. 15, 2024 — Thirteen arrested after investigation into drug trafficking from New Britain car dealership Nov. 15, 2024 — Operator of Helix darknet cryptocurrency ‘mixer’ sentenced in money laundering conspiracy involving hundreds of millions of dollars More press releases
