What Are Some Examples of Tax Crimes?

When people hear the phrase “tax crime,” they often think of something dramatic—offshore accounts, fake businesses, or missing millions. But in reality, tax crimes can involve ordinary people: business owners, professionals, or anyone who made an allegedly bad decision, relied on the wrong advice, or didn’t take IRS notices seriously enough.

Below are some of the most common federal tax crimes prosecuted by the Department of Justice (DOJ) and investigated by IRS Criminal Investigation (IRS-CI).

1. Tax Evasion (26 U.S.C. § 7201)

Tax evasion is the government’s most serious tax offense. It covers any willful attempt to evade or defeat a tax owed—whether by underreporting income, overstating deductions, hiding assets, or structuring transactions to avoid tax.

Prosecutors often charge tax evasion when they can show a pattern of concealment—such as multiple years of underreporting, the use of cash businesses, or transfers through shell companies.
Penalties can include up to five years in prison per count, restitution, and significant fines.

2. Filing False Tax Returns (26 U.S.C. § 7206(1))

It’s a crime to willfully sign a false return, even if the IRS never loses money. The false statement itself—whether about income, deductions, or credits—is enough.

This charge often comes up when the IRS believes someone fabricated deductions, omitted income, or used false documents. Each false return is a separate felony count carrying up to three years in prison.

3. Aiding and Assisting the Filing of False Returns (26 U.S.C. § 7206(2))

This statute targets third parties—like accountants, tax preparers, or advisors—who allegedly help others file false returns. You don’t need to sign the return to be charged; it’s enough if you “assisted” in preparing or advising on it.

4. Failure to File a Tax Return (26 U.S.C. § 7203)

Sometimes, the simplest omission becomes a federal charge. Willfully failing to file a required return—individual, business, or payroll—can be prosecuted as a misdemeanor, or even a felony in aggravated cases.

The government looks for repeated non-filing, large balances due, or clear ability to pay as evidence of willfulness.

5. Obstruction of the Internal Revenue Laws (26 U.S.C. § 7212(a))

This is a catch-all tax crime used when prosecutors believe someone interfered with the IRS. It can apply to conduct like hiding records, misleading agents, or advising others not to comply with tax laws.

Because it’s so broad, it’s also one of the most dangerous and overused charges—but a strong defense can focus on showing there was no corrupt intent, no actual interference, or that the client was lawfully asserting rights.

6. Employment and Payroll Tax Crimes

Employers can face criminal charges for failing to withhold or pay over payroll taxes. These cases often involve struggling businesses that used payroll funds to cover expenses.

The government tends to prosecute when it sees repeated quarters of nonpayment, especially if owners paid other creditors instead of the IRS.

7. Promoting Abusive Tax Shelters

The DOJ aggressively targets promoters, accountants, and attorneys accused of marketing abusive tax shelters—structures or transactions designed solely to evade tax.

Even when marketed as legitimate strategies, these cases can turn criminal if prosecutors believe the promoter knew the tax benefits were false or lacked economic substance.

8. Conspiracy to Defraud the United States (18 U.S.C. § 371)

This is one of the government’s most flexible tools. It’s often added alongside other tax counts and used to charge multiple defendants—for example, a taxpayer and advisor accused of working together to conceal income.

Because conspiracy doesn’t require a completed tax loss, it can dramatically expand exposure.

When the Stakes Are High

Most tax crimes are federal felonies—and they carry more than financial penalties. A conviction can mean years in prison, asset forfeiture, and professional ruin. But not every IRS problem is criminal. Many begin as civil disputes that can be contained or resolved before an indictment ever happens.

When the government starts asking questions, the most important step is to get experienced counsel involved early—someone who knows how DOJ Tax and IRS-CI build their cases and how to stop momentum before it leads to charges.