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 18, 2022 — Hazleton roofing company owner sentenced to six months’ imprisonment for failing to pay payroll taxes May 18, 2022 — Local woman charged with preparing false income tax returns May 18, 2022 — Spokane resident pleads guilty to fraudulently obtaining more than $50,000 in COVID-19 relief funds More press releases