The IRS penalty for not filing US taxes is generally 5% of unpaid tax for each month or part of a month the return is late, up to 25%.
Returns more than 60 days late may face a minimum penalty of $525 if due in 2026, or $535 if due in 2027 (limited to 100% of unpaid tax), and interest and late-payment penalties may also apply.
Every year, millions of Americans are required to file a federal income tax return with the IRS. Some assume they can skip filing because they live abroad or believe they don’t owe taxes, but failing to file can have financial and legal consequences.
The penalties depend on how much tax you owe, how long your return is overdue, and whether you have a valid reason for filing late.
If you owe no federal income tax, you generally won’t face failure-to-file or failure-to-pay penalties. However, you could lose a refund or face separate penalties for missing international information returns.
Key Takeaways: IRS Penalties for Not Filing
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Failure to file: The penalty is generally 5% of unpaid tax per month, capped at 25%.
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Failure to pay: The penalty is generally 0.5% per month, also capped at 25%.
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Minimum penalty: Returns more than 60 days late may be subject to a minimum penalty.
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Interest: Interest continues to accrue on unpaid taxes until the balance is paid.
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Criminal exposure: Willfully failing to file can result in criminal penalties in serious cases.
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Relief options: Eligible taxpayers may qualify for IRS penalty relief or the Streamlined Filing Compliance Procedures.
IRS Penalties for Not Filing Taxes
| Penalty or consequence | General rule |
|---|---|
| Failure to file | 5% of unpaid tax per month, up to 25% |
| Failure to pay | 0.5% per month, up to 25% |
| More than 60 days late | Minimum $525 for returns due in 2026; $535 for returns due in 2027, or 100% of unpaid tax, whichever is less |
| Interest | Compounds daily; rate changes quarterly |
| No tax owed | Generally no failure-to-file or failure-to-pay penalty |
| Willful non-filing | Possible criminal penalties |
| Penalty relief | May be available depending on circumstances |
Failure-to-File Penalty
The most common penalty for not filing taxes on time is the failure-to-file penalty. The IRS generally charges 5% of unpaid tax for each month or part of a month that a return is late, up to a maximum of 25%. If a return is more than 60 days late, a minimum penalty may apply.
For individual income tax returns due in 2026, the minimum is the lesser of $525 or 100% of unpaid tax.
For returns due in 2027, the currently published amount is $535, subject to applicable inflation adjustments.
Example: Suppose you owe $4,000 in federal income tax and file your return three months late without a valid tax extension. The standard failure-to-file penalty would be $600 (15% of $4,000), assuming no overlapping failure-to-pay adjustment.
If both penalties apply, the combined penalty for those three months is generally $600, rather than adding the two full penalty rates together.
This is why filing a return on time is important, even when you cannot pay the entire balance immediately.
Failure-to-Pay Penalty
Filing your return and paying your taxes are separate obligations. If you file on time but don’t pay the amount owed by the payment deadline, the IRS generally charges a failure-to-pay penalty of 0.5% of unpaid tax for each month or part of a month the balance remains outstanding.
This penalty continues until the tax is paid, up to a maximum of 25%.
If both the failure-to-file and failure-to-pay penalties apply during the same month, the failure-to-file penalty is generally reduced to 4.5%, while the failure-to-pay penalty remains 0.5%.
Taxpayers with an approved IRS installment agreement may qualify for a reduced monthly failure-to-pay penalty of 0.25% if they meet the applicable filing requirements.
Interest on Unpaid Taxes
In addition to penalties, the IRS charges interest on unpaid federal income taxes. Interest generally begins accumulating from the original payment deadline and continues until the balance is paid in full.
The IRS interest rate is determined quarterly and is generally based on the federal short-term rate plus three percentage points for individual taxpayers. Interest compounds daily.
Unlike the failure-to-file penalty, interest does not stop accumulating after a fixed number of months. As a result, unpaid balances can continue growing even after the maximum late-filing penalty has been reached.
What Happens If You Don’t File Taxes at All?
Failing to file a required tax return can create problems beyond penalties and interest. The IRS has several ways to identify unfiled returns and pursue unpaid taxes.
The IRS May Prepare a Substitute Return
If you fail to file, the IRS may prepare a Substitute for Return (SFR) using information it receives from employers, financial institutions, and other sources.
These substitute returns may not account for deductions, credits, or other tax benefits you could otherwise claim.
Consequently, the IRS may calculate a higher tax liability than you would owe if you prepared and filed an accurate return yourself.
IRS Collection Actions
When taxes remain unpaid, the IRS may take collection actions, including filing federal tax liens or levying wages, bank accounts, or other assets. These actions generally follow established notice and collection procedures.
Not everyone who misses a filing deadline will immediately face enforcement, but ignoring IRS notices can make the situation more difficult to resolve.
Loss of Tax Refunds
Taxpayers who are entitled to refunds generally must file within three years of the original filing deadline to claim them, subject to applicable refund limitation rules.
If you wait too long, you may lose the opportunity to receive money that would otherwise have been refunded. Many Americans abroad are surprised to learn that expats can qualify for US tax refunds.
Behind on Your US Tax Returns?
Universal Tax Professionals can file your overdue returns and help limit penalties and interest before they grow.
Can You Go to Jail for Not Filing Taxes?
Yes, but criminal prosecution is generally associated with willful violations rather than an ordinary late return.
Under 26 U.S.C. § 7203, willfully failing to file a required tax return can be prosecuted as a misdemeanor, potentially resulting in fines and imprisonment of up to one year for each offense.
More serious conduct involving tax evasion or fraud can carry greater criminal penalties. Simply being late or unable to pay does not automatically mean you will face criminal charges.
Special Considerations for Americans Living Abroad
Living outside the United States does not automatically eliminate your US tax filing obligations.
US citizens generally must report worldwide income and file federal income tax returns when they meet the applicable filing requirements.
Many green card holders and other US tax residents are subject to similar obligations. The US tax filing requirements for Americans abroad depend on factors such as filing status, income, age, and self-employment earnings.
Americans abroad also generally receive an automatic two-month extension to file their federal income tax returns. For the 2026 tax year, this extends the standard filing deadline from April 15, 2027, to June 15, 2027, for qualifying taxpayers.
However, interest on unpaid taxes generally begins accruing from April 15.
Foreign Earned Income and Tax Benefits Abroad
Americans living overseas may qualify for tax benefits that reduce or eliminate their US income tax liability.
The Foreign Earned Income Exclusion (FEIE) allows eligible taxpayers to exclude up to $132,900 of qualifying foreign earned income for the 2026 tax year.
Taxpayers must meet the applicable requirements, including the bona fide residence or physical presence test. T
he Foreign Tax Credit (FTC) may also reduce double taxation by allowing eligible foreign income taxes to offset US income tax on the same income. However, these benefits generally must be claimed on a properly filed tax return.
Certain late-filing situations can also affect eligibility to claim the FEIE.
The FBAR Requirement
Americans with foreign financial accounts may have separate reporting obligations.
An FBAR (FinCEN Form 114) is generally required when the aggregate value of reportable foreign financial accounts exceeds $10,000 at any point during the calendar year.
Failure to file a required FBAR can result in significant civil penalties. The maximum penalties depend on whether the violation was willful or non-willful, and statutory amounts are adjusted annually for inflation.
Non-willful violations may qualify for reasonable-cause relief, while willful violations can result in substantially higher penalties. The FBAR reporting requirements apply independently of whether federal income tax is owed.
FATCA Reporting
Certain Americans abroad must also report specified foreign financial assets on Form 8938 under the Foreign Account Tax Compliance Act (FATCA).
For unmarried taxpayers who qualify as living abroad, the reporting threshold generally begins when specified foreign financial assets exceed $200,000 on the last day of the tax year or $300,000 at any time during the year.
The thresholds vary based on filing status and residence. Failure to file Form 8938 when required can result in an initial $10,000 penalty, with additional penalties possible for continued noncompliance after IRS notification.
These FATCA reporting requirements are separate from the FBAR rules, even though some assets may need to be reported on both forms.
The IRS publishes a comparison of Form 8938 and FBAR requirements that shows where the two overlap.
Haven't Filed in Years?
Universal Tax Professionals prepares Streamlined filings for Americans abroad so you can get compliant with reduced penalties.
What to Do If You Haven’t Filed US Taxes
Missing a tax deadline does not necessarily mean you will face the maximum penalties. Several options may help you become compliant and limit additional costs.
File outstanding returns as soon as possible. Filing can stop additional failure-to-file penalties from accumulating, even when you cannot immediately pay the full balance.
If you are unsure how far back to go, start with how many years of back taxes expats can file.
Pay what you can. Partial payments may reduce future penalties and interest. Taxpayers who cannot pay in full may qualify for an IRS installment agreement.
Request penalty relief. The IRS may remove certain penalties when taxpayers establish reasonable cause. First Time Abate relief may also be available to qualifying taxpayers with a satisfactory compliance history.
Consider the Streamlined Filing Compliance Procedures. Americans abroad whose failures were non-willful may qualify for a special IRS compliance process.
Under the Streamlined Foreign Offshore Procedures, eligible taxpayers generally submit three years of tax returns and six years of FBARs, along with the required certification.
Qualifying taxpayers may receive relief from certain failure-to-file, failure-to-pay, information return, and FBAR penalties, although outstanding taxes and interest must still be paid.
