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 May 31, 2024 — Former commercial airline pilot convicted by federal jury of tax crimes May 31, 2024 — Chinese nationals arrested for alleged $12.3 million fraud involving fraudulent return of counterfeit Apple iPhones and other devices May 31, 2024 — Cedar Rapids man sentenced to federal prison for methamphetamine distribution and money laundering crimes More press releases