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 July 16, 2024 — Former Universal Companies executive sentenced to seven years in prison for conspiracy to defraud the U.S., fraud, and tax crimes July 16, 2024 — Jury convicts Eau Claire man of wire fraud July 16, 2024 — Convicted Newington landscape contractor fined $1.75 million for tax evasion More press releases