10 Frivolous Tax Arguments the IRS Has Already Shot Down — And the $5,000 Penalty for Trying

Each year the IRS updates its official rebuttal of the most common arguments made by people who claim they aren’t required to pay federal income tax. It’s called The Truth About Frivolous Tax Arguments, and filing a return based on one of these positions carries a $5,000 penalty per return under Section 6702 — a rule Congress increased from $500 back in 2006.

Here are ten of the arguments I found most notable, alongside the IRS’s actual rebuttal for each.

Like moths to a flame, some people find themselves irresistibly drawn to the tax protester movement’s illusory claim that there is no legal requirement to pay federal income tax. And, like moths, these people sometimes get burned.

Contention #1: Filing a tax return is voluntary. Some point to IRS language describing the tax system as “voluntary” as proof that filing itself is optional.

Fact: “Voluntary” refers to the system of allowing taxpayers to initially determine and report their own correct tax, rather than having the government calculate it for them from the outset. The requirement to file a return is not voluntary and is set out clearly in the tax code.

Contention #2: You can reduce your tax liability by filing a “zero return.” Some taxpayers file a return reporting no income and no tax liability despite having taxable income, then request a refund of any withheld tax.

Fact: There is no legal authority permitting a taxpayer with taxable income to avoid tax by filing a zero return. Courts have repeatedly penalized this argument as frivolous.

Contention #3: Wages aren’t income. This argument claims that wages aren’t taxable because there’s supposedly no “gain” when labor is exchanged for money, or that the Sixteenth Amendment only authorized a tax on profit, not wages.

Fact: Gross income includes all income from whatever source derived, including compensation for services, unless specifically exempted by law. Any other reading has been rejected by the courts.

Contention #4: I’m not a “citizen” of the United States, so I’m not subject to federal tax law. Some argue they’ve rejected U.S. citizenship in favor of state-only citizenship to escape federal tax obligations.

Fact: The Fourteenth Amendment establishes simultaneous state and federal citizenship for anyone born or naturalized in the U.S. Claims of being solely a state citizen, exempt from federal tax, have been uniformly rejected by courts.

Contention #5: Only federal government employees owe federal income tax. This misreads the tax code’s definition of “employee” as limited to government workers.

Fact: The code’s use of “includes” is a term of enlargement, not limitation — it makes federal employees part of the definition without excluding private-sector employees, who are generally included as well.

Contention #6: The First or Fifth Amendment lets me refuse to pay taxes. Some argue religious objection, moral objection to how tax dollars are spent, or self-incrimination concerns exempt them from filing or paying.

Fact: Neither amendment provides a right to refuse to pay income tax on religious, moral, or self-incrimination grounds, and courts have consistently rejected these arguments.

Contention #7: The IRS isn’t a real federal agency. Some claim the IRS is a private corporation because it wasn’t created by a specific act of Congress.

Fact: The Secretary of the Treasury has statutory authority to administer and enforce tax law and to create an agency to do so — which is exactly how the IRS was established, under authority explicitly granted by Congress.

Contention #8: I’m entitled to a refund of all the Social Security tax I ever paid. Proponents encourage people to claim refunds of lifetime Social Security taxes by “waiving” their future benefits.

Fact: No provision in the tax code or any other law allows a refund of Social Security taxes on this basis.

Contention #9: A tax lien is invalid if unsigned or improperly delegated. Some challenge liens on the basis of missing signatures or authority.

Fact: Federal law controls the form of a tax lien notice, and there’s no requirement that it be signed to be valid.

Contention #10: The Tax Court can’t decide legal issues. This challenges the authority of the U.S. Tax Court itself.

Fact: The Tax Court is a federal court established by Congress under Article I of the Constitution, with clear jurisdiction over tax disputes, worker classification, collection actions, and more.

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Common Issues to Watch Out For

I still get questions rooted in versions of these arguments, usually secondhand from a friend, forum, or “tax expert” online.

Confusing tax avoidance with tax evasion. Legitimate tax planning — maximizing deductions, using retirement accounts, timing income — is legal and encouraged. Frivolous arguments claim you owe nothing at all on a legal technicality, which is a different (and penalized) thing entirely.

Assuming a plausible-sounding argument must have some basis. Many of these contentions cite real amendments, sections, or terms, but twist their meaning. That surface-level legitimacy is exactly what makes them convincing to people who haven’t checked the source.

Not realizing the penalty applies per return, and stacks. The $5,000 frivolous filing penalty applies separately to each frivolous return or submission — repeat filers can accumulate substantial penalties quickly.

Related reading:

• Why Is It Taking So Long to Get My Tax Refund?
• 2026-2027 Federal IRS Tax Brackets and Rates
• When Can I File My Taxes in 2027?