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 20, 2021 — MIT professor indicted on charges relating to grant fraud January 20, 2021 — Newark tax preparer admits aiding and assisting in preparation of false tax returns January 20, 2021 — Mexican national sentenced to over 7 years in federal prison for scheming to launder money for drug trafficking organizations More press releases CI’s Top Five Cases of 2020 The list of Top Five Cases will be released via Twitter @IRS_CI beginning December 28th. #5 — Former tax lawyer sentenced to five years in federal prison for evading back taxes he owed to Internal Revenue Service #4 — Tax preparer sent to prison after causing more than $3 million in fraudulent tax returns #3 — Mountaintop man sentenced to 169 months’ imprisonment for money laundering conspiracy #2 — Israel’s largest bank, Bank Hapoalim, admits to conspiring with U.S. taxpayers to hide assets and income in offshore accounts #1 — Global disruption of three terror finance cyber-enabled campaigns
