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 January 25, 2023 — Dental practice owners charged with fraud and RICO conspiracy January 25, 2023 — Youngstown area attorney convicted of participating in scheme to steal more than $1.3 million from IRS January 25, 2023 — Sixty Southside Locos gang members and associates convicted for drug trafficking operation directed from Oklahoma state prisons More press releases