Defending Against IRS Criminal Tax Investigations: What High Earners Need to Know

How Criminal Investigations Begin

According to the IRS, CI investigates alleged violations of the Internal Revenue Code, the Bank Secrecy Act, and money laundering statutes, and refers its findings to the Department of Justice for recommended prosecution. Investigations can begin with information from within the IRS, when a revenue agent, revenue officer, or investigative analyst detects possible fraud, or with information from the public or from investigations by other law enforcement agencies or U.S. Attorneys’ offices.

The IRS describes a multi-step process. Special agents first evaluate the information in a “primary investigation,” and CI management must approve opening a “subject criminal investigation.” Investigative techniques can include interviews of third-party witnesses, surveillance, search warrants, forensic examination of evidence, subpoenas for bank records, and review of financial data. If the evidence supports it, the special agent prepares a report recommending prosecution, which is reviewed at several levels before referral. Prosecutors then decide whether to bring charges.

The Principal Criminal Tax Statutes

Tax evasion (§7201): a felony punishable by up to 5 years in prison and a fine of up to $100,000 ($500,000 for a corporation) under that section, or both, plus the costs of prosecution.

False return (§7206(1)): willfully making and subscribing a return or other document under penalties of perjury that the person does not believe to be true and correct as to every material matter. It is a felony punishable by up to 3 years in prison.

Willful failure to file, pay, or keep records (§7203): a misdemeanor punishable by up to 1 year in prison.

What the Government Must Prove

In Boulware v. United States, 552 U.S. 421 (2008), the Supreme Court restated, quoting its earlier decision in Sansone v. United States (1965), that the elements of evasion under §7201 are willfulness, the existence of a tax deficiency, and an affirmative act constituting an evasion or attempted evasion of the tax.

Willfulness is usually the central issue. In Cheek v. United States, 498 U.S. 192 (1991), the Supreme Court described willfulness as the voluntary, intentional violation of a known legal duty and held that a good-faith misunderstanding of the law, or a good-faith belief that one is not violating the law, negates willfulness whether or not the belief is objectively reasonable. Negligence and honest mistakes are addressed through civil penalties rather than criminal prosecution.

Statutes of Limitations

Under §6531, the general period for criminal tax prosecutions is 3 years, but it is 6 years for the most significant offenses, including evasion, willful failure to file a return or pay tax, false returns under §7206(1), and willfully aiding or assisting in the preparation of false returns. Time the person spends outside the United States or as a fugitive is not counted. On the civil side, tax on a false or fraudulent return filed with intent to evade tax may be assessed at any time (§6501(c)(1)).

Initial Steps to Consider

Obtain counsel before engaging: statements made to agents can be used as evidence. Subpoenas and summonses should not be ignored, but responses should be handled through counsel.

Understand privilege: confidential communications with a lawyer for the purpose of legal advice are generally protected by the attorney-client privilege. The separate federal privilege for CPAs and enrolled agents under §7525 applies only in noncriminal tax matters before the IRS and noncriminal federal tax proceedings, so it does not protect those communications in a criminal case.

Preserve records: documents should be kept intact. Destroying or altering records can lead to separate obstruction charges.

Evaluate the civil side as well: a criminal matter often has parallel civil consequences, including tax, interest, and the 75 percent civil fraud penalty under §6663.

Voluntary Disclosure

For taxpayers who are concerned about past conduct but have not been contacted, the IRS Criminal Investigation Voluntary Disclosure Practice is described by the IRS as a possible means for those who have willfully failed to comply to resolve their noncompliance and limit exposure to criminal prosecution. It has specific eligibility requirements that should be reviewed with counsel before any submission.

The Bottom Line

Criminal tax cases turn on willfulness, and the early decisions after first contact from CI can shape the outcome. Understanding how investigations proceed and the protections available makes it possible to respond deliberately rather than reactively.