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 February 15, 2023 — Doctor admits health care fraud conspiracy February 14, 2023 — West Palm Beach healthcare operator charged in employment tax scheme February 14, 2023 — Michigan insurance salesman convicted of filing false tax returns and making false statements in bankruptcy More press releases