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 30, 2024 — Final Texas defendants plead guilty to conspiracy to commit mail and wire fraud and aggravated identity theft May 30, 2024 — Twenty-four members and associates of Jersey City street gang charged with gang-related offenses, including drug distribution, armed robbery, and financial fraud May 30, 2024 — Local man sent to prison for trying to intimidate witnesses More press releases