If you stop paying your federal taxes, the IRS starts charging interest and penalties within weeks, and its collection powers escalate from there: liens on everything you own, levies on your paycheck and bank accounts, seizure of property, denial or revocation of your passport, and, in willful cases, criminal prosecution carrying up to five years in prison. What happens if you stop paying taxes depends less on luck than on how long you ignore the problem and whether the IRS decides your nonpayment was deliberate.
The Penalties and Interest Start Immediately
The first consequences are financial, and they compound. The IRS charges interest on underpaid taxes at 7% per year for 2026, compounded daily.1Internal Revenue Service. Interest Rates Remain the Same for the First Quarter of 2026 Two separate penalties stack on top:
- A failure-to-pay penalty of 0.5% of the unpaid tax per month, capped at 25%.2Internal Revenue Service. Failure to Pay Penalty
- A failure-to-file penalty of 5% per month, also capped at 25%. When both apply in the same month, the failure-to-file penalty is reduced by the failure-to-pay penalty, so you aren’t double-charged.2Internal Revenue Service. Failure to Pay Penalty
The math turns ugly quickly. Someone who owes $20,000 and ignores it for two years can easily rack up $10,000 or more in combined penalties and interest before the IRS even escalates to collections. The failure-to-file penalty is ten times more aggressive than the failure-to-pay penalty, which is why filing a return on time is worth doing even when you can’t cover the balance.
When Not Paying Becomes a Crime
Most unpaid tax cases stay civil. The IRS wants the money, not a prosecution. But willful noncompliance is a different matter, and two federal statutes cover it:
- Willful failure to file or pay is a misdemeanor under 26 USC 7203, carrying fines up to $25,000 and up to one year in prison, plus prosecution costs.3Office of the Law Revision Counsel. 26 USC 7203 – Willful Failure to File Return, Supply Information, or Pay Tax
- Tax evasion under 26 USC 7201 is a felony, with fines up to $100,000 and up to five years in prison. It applies to anyone who willfully attempts to evade or defeat a tax, which includes hiding income, filing false returns, or moving assets to dodge collection.4Office of the Law Revision Counsel. 26 USC 7201 – Attempt to Evade or Defeat Tax
The pivotal word in both statutes is “willfully.” An honest mistake or a missed deadline is a civil matter. Deliberately hiding income, or refusing to pay because you reject the tax system, is criminal. The IRS prosecutes roughly 2,000 criminal tax cases per year, and the conviction rate exceeds 90%. It picks cases it expects to win.
How the IRS Collects What You Owe
Between civil penalties and criminal prosecution sits the IRS collection machine, and it has powers no private creditor can match.
Federal Tax Liens
Once the IRS assesses a balance, sends you a bill, and doesn’t get paid, a federal tax lien automatically attaches to everything you own: house, car, bank accounts, business assets.5Internal Revenue Service. Understanding a Federal Tax Lien The IRS then files a public Notice of Federal Tax Lien, which surfaces on your credit report and tells other creditors that the government has first claim. Selling a home or refinancing a mortgage while a tax lien is active is extremely difficult.
Levies on Wages and Bank Accounts
If a lien doesn’t get your attention, the IRS can levy, meaning it actually takes your money. Under federal law, if you don’t pay within 10 days after a notice and demand, the IRS can levy wages, bank accounts, Social Security benefits, and other income and assets.6Office of the Law Revision Counsel. 26 USC 6331 – Levy and Distraint You must get at least 30 days’ written notice before a levy, but after that window closes the seizure can happen without further warning.
A bank levy freezes the funds in your account on the day it’s received. The bank holds those funds for 21 days before sending them to the IRS, giving you a narrow window to negotiate or challenge the levy.7Internal Revenue Service. Information About Bank Levies A wage levy is continuous, taking a portion of every paycheck until the debt is satisfied or you make other arrangements. The amount you’re allowed to keep depends on filing status and dependents, and the IRS assumes single with zero dependents unless you submit an exemption form.
Property Seizure
In serious cases, the IRS can physically seize and sell your property, including your home, vehicles, and business equipment. Before doing so, a revenue officer must verify the liability, consider alternatives, and confirm the sale would produce net proceeds after expenses.8Internal Revenue Service. Pre-Seizure Considerations The IRS needs either your written consent or a court order to enter a private residence. Vehicles on public property or in open driveways can be seized without either.
Your Passport Is at Risk Too
Since 2018, the IRS can certify taxpayers with “seriously delinquent tax debt” to the State Department, which can then deny a new passport application, refuse a renewal, or revoke a current passport. The statutory threshold starts at $50,000 and is adjusted annually for inflation; in 2025, the adjusted threshold was approximately $64,000.9Office of the Law Revision Counsel. 26 USC 7345 – Revocation or Denial of Passport in Case of Certain Tax Delinquencies That figure includes penalties and interest, which reach the ceiling faster than you might think. Entering an installment agreement or having an accepted offer in compromise protects your passport; ignoring the debt doesn’t.
Business Owners Face Personal Liability for Payroll Taxes
If you run a business and stop remitting payroll taxes, the consequences get worse. Federal law imposes a Trust Fund Recovery Penalty on any “responsible person” who willfully fails to collect and pay over employee withholding taxes. The penalty equals the full amount of the unpaid tax, effectively doubling the bill.10Office of the Law Revision Counsel. 26 USC 6672 – Failure to Collect and Pay Over Tax, or Attempt to Evade or Defeat Tax A “responsible person” isn’t limited to the owner; it can include officers, directors, or anyone with authority over how company money gets spent. The IRS must give at least 60 days’ written notice before assessing the penalty, and once assessed, it’s a personal liability that survives business bankruptcy.
How Long the IRS Can Come After You
Waiting the IRS out doesn’t work. The agency generally has three years from the date a return was due (or filed, if later) to audit that return and assess additional taxes.11Internal Revenue Service. Time IRS Can Assess Tax That window extends to six years if you underreport income by more than 25%, and it never expires if you don’t file a return at all or if you file a fraudulent one.
Once a tax is assessed, the IRS has 10 years to collect. That clock, called the Collection Statute Expiration Date, pauses during certain events, including bankruptcy, a pending offer in compromise, or time spent outside the country.12Internal Revenue Service. Time IRS Can Collect Tax Ten years is a long time to face liens, levies, and garnishments. Most people settle or pay long before the clock runs out.
Ways Out If You’re Already Behind
If you’ve already fallen behind, the IRS offers several paths back to compliance. Ignoring the problem is the only option that makes things strictly worse.
Installment Agreements
If you owe $10,000 or less (excluding interest and penalties), you’re guaranteed an installment agreement as long as you’ve filed all required returns for the past five years, haven’t previously used an installment agreement for income tax, and agree to pay in full within three years.13Internal Revenue Service. Topic No. 202, Tax Payment Options For debts up to $50,000 including penalties and interest, a streamlined plan is available that generally skips detailed financial disclosure. Larger debts require submitting a Collection Information Statement covering income, expenses, and assets.
Offer in Compromise
An offer in compromise lets you settle for less than the full amount if the IRS agrees you can’t pay in full or that full collection would create economic hardship. The application fee is $205, and you must be current on all required filings and not in bankruptcy.14Internal Revenue Service. Offer in Compromise A lump-sum offer requires 20% of the proposed amount with the application. Low-income taxpayers are exempt from both the fee and the upfront payment. The IRS rejects more offers than it accepts, so a proposal has to reflect what you can realistically pay based on income, allowable expenses, and asset equity.
Penalties and interest compound relentlessly, collection powers expand over time, and the IRS doesn’t lose interest. Whether the right move is a payment plan, an offer, or simply filing overdue returns to stop the failure-to-file penalty from growing, acting sooner always costs less than acting later.