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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
Latest news
Feb. 24, 2026 — IRS-CI data shows BSA filings are used in nearly all its investigations
Feb. 24, 2026 — Port Saint Lucie tax preparer sentenced to prison for tax fraud and lying on naturalization application
Feb. 24, 2026 — Ten drug dealers handed lengthy federal prison sentences for trafficking kilos of fentanyl, meth, and cocaine
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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.
*The tool is not available during all enforcement actions due to operational and safety considerations.