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. 13, 2024 — Rancho Cucamonga man and woman found guilty of federal criminal charges in connection with “birth tourism” scheme Sept. 13, 2024 — Hollywood Hills man who operated Orange County drug treatment facilities found guilty of paying nearly $2.9 million in kickbacks Sept. 13, 2024 — Two members of Kennedy Street Crew sentenced for fentanyl trafficking, money laundering More press releases