If you missed the tax deadline, file your return as soon as you can, even if you can’t pay what you owe. The failure-to-file penalty runs at 5% of your unpaid tax per month, ten times the 0.5% failure-to-pay penalty, so the single most expensive thing you can do is keep waiting.1Internal Revenue Service. Failure to File Penalty If the IRS actually owes you a refund, there’s no late penalty at all, but you have three years to claim it before the money is gone for good.
File the Return Now
The failure-to-file penalty stops the day the IRS receives your return, so filing is what stops the bleeding. Start by pulling together your W-2s, 1099s, and any records of deductions or credits for the year you missed. If you’re missing documents, you can request a Wage and Income Transcript from the IRS, which shows what employers and financial institutions reported under your Social Security number. Transcripts are available for the current year and the nine prior tax years.2Internal Revenue Service. Transcript Types for Individuals and Ways to Order Them
You can view and download transcripts through your IRS Online Account, or order them by mail by calling 800-908-9946. Mailed copies take five to ten business days. If you have more than 85 income documents for a given year, the online tool won’t generate the transcript and you’ll need to submit Form 4506-T by mail.2Internal Revenue Service. Transcript Types for Individuals and Ways to Order Them
The IRS e-file system accepts the current tax year and the two prior years. As of 2026, that means you can electronically file returns for tax years 2025, 2024, and 2023.3Internal Revenue Service. Benefits of Modernized e-File (MeF) Anything older has to go in on paper. File a late return the same way and to the same address you’d use for an on-time return.4Internal Revenue Service. Filing Past Due Tax Returns
Ignoring the problem long enough triggers a worse outcome: the IRS eventually files a Substitute for Return on your behalf, based on the income data it already has and with none of your deductions, credits, or exemptions. The resulting bill is almost always far higher than what a properly filed return would show, and once the IRS assesses it you’re into collection territory. You can still replace a Substitute for Return by filing your own, but you’re doing it under time pressure and with a bigger balance.
What the Penalties Cost
Two separate penalties apply when you file and pay late, and they compound in a way that catches people off guard.
The Failure-to-File Penalty
The failure-to-file penalty is 5% of the unpaid tax for each month or partial month the return is late, up to a maximum of 25%. If the return is more than 60 days late, the minimum penalty is $525 or 100% of the unpaid tax, whichever is less. The $525 minimum applies to returns due after December 31, 2025, which covers the 2026 filing season.1Internal Revenue Service. Failure to File Penalty
The Failure-to-Pay Penalty
The failure-to-pay penalty runs at 0.5% of the unpaid tax per month, also capped at 25%.5Internal Revenue Service. Topic No. 653, IRS Notices and Bills, Penalties and Interest Charges That’s the reason the IRS repeatedly tells people to file on time even when they can’t pay: filing without paying is roughly ten times cheaper than not filing at all.
How They Stack
When both apply in the same month, the filing penalty is reduced by the payment penalty, so you’re paying a combined 5% per month (4.5% plus 0.5%) rather than 5.5%. After five months the filing penalty hits its 25% cap, but the payment penalty keeps running until it hits its own 25% cap or you pay the balance.1Internal Revenue Service. Failure to File Penalty On a $5,000 balance filed six months late with nothing paid, the filing penalty alone would reach the full $1,250 cap.
Interest
Interest runs on top of the penalties from the original due date until you pay in full.6Internal Revenue Service. Interest The rate is set quarterly at the federal short-term rate plus three percentage points; for the first quarter of 2026 the individual underpayment rate is 7%, compounded daily.7Internal Revenue Service. Interest Rates Remain the Same for the First Quarter of 2026 Unlike the penalties, interest has no cap and it accrues on the penalties themselves, not just the underlying tax.
How to Get the Penalties Removed
The IRS routinely removes penalties for taxpayers who qualify, and it’s worth asking. There are two paths.
First-Time Abatement
First-Time Abatement wipes out failure-to-file and failure-to-pay penalties for taxpayers with a clean recent history. To qualify, you need to have filed all required returns (or valid extensions) for the three prior tax years and had no penalties during those three years.8Internal Revenue Service. Administrative Penalty Relief
For the 2026 filing season, the IRS has indicated it will apply First-Time Abatement automatically to eligible taxpayers for penalties assessed on tax years beginning in 2025 and later. If it doesn’t show up on your account, call the IRS or write to request it. The relief isn’t once-in-a-lifetime; you can qualify again later as long as you maintain a clean three-year record before the year in question.8Internal Revenue Service. Administrative Penalty Relief
Reasonable Cause
If First-Time Abatement isn’t available, you can request relief for reasonable cause. The IRS looks at whether you exercised ordinary care but still couldn’t file or pay on time because of circumstances outside your control.9Internal Revenue Service. Penalty Relief for Reasonable Cause Situations the IRS recognizes include:
- Serious illness or death affecting you or an immediate family member
- Natural disasters or fires that destroyed records or prevented you from meeting deadlines
- Circumstances where essential tax documents were genuinely unavailable
- IRS system problems that blocked a timely electronic filing or payment
Things the IRS generally will not accept: relying on a tax professional, not knowing about a requirement, or simply not having the money. Lack of funds alone is not reasonable cause for failing to pay, though the underlying circumstances that caused the shortfall may qualify if you can show you tried to comply.9Internal Revenue Service. Penalty Relief for Reasonable Cause
To request either kind of relief, call the IRS, respond to a penalty notice using the instructions on the notice, or file Form 843.10Internal Revenue Service. Instructions for Form 843
If You Owe and Can’t Pay
File the return anyway. The IRS would rather work with you than chase you, and there are several ways to spread out or reduce a balance you can’t cover.
Pay What You Can Now
IRS Direct Pay pulls funds straight from a bank account for free and processes immediately.11Internal Revenue Service. Direct Pay With Bank Account Debit and credit cards work too, with processor fees. Any partial payment shrinks the balance that penalties and interest run against.
Short-Term Payment Plan
If you can pay off the balance within 180 days, the IRS offers a short-term plan with no setup fee. You have to owe less than $100,000 in combined tax, penalties, and interest. Penalties and interest keep accruing during the repayment window.12Internal Revenue Service. Options for Taxpayers Who Need Help Paying Their Tax Bill
Long-Term Installment Agreement
For balances that need more time, monthly installment agreements can run up to 72 months. To use the streamlined online application, you must owe $50,000 or less in combined tax, penalties, and interest, and have all required returns filed.12Internal Revenue Service. Options for Taxpayers Who Need Help Paying Their Tax Bill There’s a setup fee that varies by how you apply and pay, ranging from $22 for direct debit set up online to $178 for other payment methods set up by phone or mail. The fee is waived for low-income taxpayers using direct debit, and $43 for other methods, which may be reimbursed. These fees took effect March 3, 2026.13Internal Revenue Service. Payment Plans and Installment Agreements Once an installment agreement is in place and your return was filed on time or under an extension, the failure-to-pay rate drops from 0.5% per month to 0.25%.
Offer in Compromise
If you genuinely can’t pay the full liability, the IRS may accept less through an Offer in Compromise. The agency evaluates your income, expenses, assets, and ability to pay, and approves an offer only when the amount represents the most it could realistically collect.14Internal Revenue Service. Offer in Compromise It’s a hardship program, not a negotiation.
Currently Not Collectible Status
If you can’t afford any monthly payment, you can ask the IRS to place your account in Currently Not Collectible status. Collection efforts pause, though penalties and interest keep running and the IRS may still file a federal tax lien to protect its interest in your assets. You’ll need to provide detailed financial information, and the IRS reviews the status periodically.15Internal Revenue Service. Temporarily Delay the Collection Process
If You’re Actually Owed a Refund
Overpaid through withholding or estimated payments? There’s no penalty for filing late when the IRS owes you money. But you only have three years from the original due date of the return to claim the refund. After that, it belongs to the Treasury.1Internal Revenue Service. Failure to File Penalty A 2022 return that was due April 15, 2023 has a refund-claim deadline of April 15, 2026. Miss that and the refund is permanently forfeit.
A few narrow exceptions can extend the three-year window:16Internal Revenue Service. Time You Can Claim a Credit or Refund
- Presidentially declared disasters can add up to one additional year
- Combat zone or contingency operation service adds time based on the length of deployment
- Bad debt or worthless security losses get seven years from the return’s original due date
When Your Deadline Hasn’t Really Passed
Certain situations extend the deadline automatically, so what looks like a missed date may not be one at all.
Combat Zone Service
Service members deployed to a combat zone or contingency operation get automatic extensions for filing and paying. The extension covers the entire period of service in the zone plus 180 days after leaving, and you also get credit for the days that were still left before the deadline when you entered. Enter on March 1 with 46 days left before April 15, and you have 226 days after leaving. No penalties or interest run during the extension. Hospitalization outside the U.S. from combat-zone injuries extends the clock through the entire hospitalization plus 180 days; hospitalization inside the U.S. can extend it up to five years.17Internal Revenue Service. Extension of Deadlines – Combat Zone Service
Living Abroad on April 15
U.S. citizens and resident aliens living overseas, and military personnel stationed outside the U.S. on April 15, get an automatic two-month filing extension to June 15, no paperwork required. You can push it further to October 15 by filing Form 4868 before June 15. Interest still accrues from the original April 15 date on any unpaid balance.18Internal Revenue Service. U.S. Citizens and Resident Aliens Abroad
Federally Declared Disaster Areas
When the President declares a federal disaster, the IRS postpones filing and payment deadlines for affected taxpayers, tied to FEMA’s damage assessments. In early 2026, taxpayers affected by severe storms in Louisiana received deadlines extended through March 31, 2026, and those hit by flooding in Montana had deadlines pushed to May 1, 2026.19Internal Revenue Service. Tax Relief in Disaster Situations Check the IRS disaster relief page for current designations.
Your State Return Is Probably Late Too
Most states with an income tax use the same April 15 filing deadline as the federal return, so a missed federal deadline usually means a missed state deadline. State penalty and interest rates vary but generally mirror the federal structure. Contact your state tax agency to see what’s owed and what payment options exist.