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 19, 2022 — Purported surgeon pleads guilty to 25 counts relating to romance scam involving online dating websites May 19, 2022 — Mastermind of 11.1 million dollar Paycheck Protection Program fraud scheme sentenced to fifteen years May 19, 2022 — Former Norfolk Sheriff sentenced for public corruption More press releases