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 August 16, 2022 — California drug trafficker who paid bribes to corrupt supervisory DEA special agent sentenced to over 11 years in federal prison August 16, 2022 — Indictment unsealed charging former member of Congress with multiple fraud schemes and campaign contribution fraud August 16, 2022 — Stamford man sentenced to prison for fraudulently obtaining more than $4 million in COVID-19 relief funds More press releases