Criminal Investigation | Internal Revenue Service

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IRS Criminal Investigation (IRS-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

What we do

Latest news

Oct. 5, 2026 — Bakersfield man sentenced to one year in prison for transferring $5M abroad through illegal money transmitting operation

Oct. 5, 2026 — Trumbull man admits role in Success Village Apartments embezzlement conspiracy

Oct. 5, 2026 — U.S. Attorney and DEA San Antonio Field Division announce new Overdose Task Force to combat drug related overdoses

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If an IRS-CI special agent is at your door, you can use the Employee Verification Tool to confirm the special agent works for IRS-CI.

Employee Verification Tool

*The tool is not available during all enforcement actions due to operational and safety considerations.