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 Dec. 4, 2024 — Puerto Rico resident sentenced to 10 years in prison for leadership role in Puerto Rico/Western Pennsylvania region drug trafficking operation Dec. 4, 2024 — Supervisor of luxury jewelry company sentenced for stealing, selling millions of dollars worth of precious metals Dec. 4, 2024 — North Carolina men sentenced in international money laundering conspiracy More press releases