For the 2025 tax year, you have to pay your federal taxes by Wednesday, April 15, 2026. That’s the day your return is due and the day any balance you owe has to be with the IRS if you file on a calendar-year basis.1Internal Revenue Service. IRS Announces First Day of 2026 Filing Season If you earn income that isn’t subject to payroll withholding, you also owe quarterly estimated payments spread across the year, with deadlines in April, June, September, and the following January.
The Annual April 15 Deadline
Federal law sets the annual deadline as the fifteenth day of the fourth month after the close of the tax year.2Office of the Law Revision Counsel. 26 USC 6072 – Time for Filing Income Tax Returns For anyone whose tax year runs January through December, that’s April 15. If you use a fiscal year, your deadline is the fifteenth day of the fourth month after your fiscal year ends.
When April 15 falls on a Saturday, Sunday, or legal holiday, the deadline shifts to the next business day.3Office of the Law Revision Counsel. 26 USC 7503 – Time for Performance of Acts Where Last Day Falls on Saturday, Sunday, or Legal Holiday “Legal holiday” includes holidays observed in the District of Columbia, and Emancipation Day (April 16 in D.C.) has bumped the national deadline in past years. In 2026, April 15 is a Wednesday and Emancipation Day falls on a Thursday, so the deadline stays put.4Internal Revenue Service. Publication 509 (2026) – Tax Calendars
An Extension to File Isn’t an Extension to Pay
You can request an automatic six-month extension to file your return by submitting Form 4868 or by making a payment through the IRS and marking it as an extension. For calendar-year filers, that pushes the filing deadline to October 15, 2026.5Internal Revenue Service. Form 4868 – Application for Automatic Extension of Time to File US Individual Income Tax Return
The extension covers the paperwork, not the payment. Any tax you owe is still due April 15. If you don’t pay by then, interest starts running and you may owe a late-payment penalty even though your return isn’t late.6Internal Revenue Service. Get an Extension to File Your Tax Return If you’re not sure of the exact figure, estimate high and pay what you can by April 15 to hold the charges down.
Quarterly Estimated Payments
If you earn income without withholding — self-employment earnings, freelance income, investment income, rental income — you generally have to make estimated tax payments during the year rather than a single payment in April. This applies if you expect to owe at least $1,000 after subtracting withholding and refundable credits.7Internal Revenue Service. Form 1040-ES (2026) – Estimated Tax for Individuals
The IRS splits the year into four unequal periods, each with its own due date:8Internal Revenue Service. Individuals 2 – Estimated Tax
- First quarter (January 1 through March 31): due April 15
- Second quarter (April 1 through May 31): due June 15
- Third quarter (June 1 through August 31): due September 15
- Fourth quarter (September 1 through December 31): due January 15 of the following year
For 2026 income, those dates are April 15, 2026; June 15, 2026; September 15, 2026; and January 15, 2027. You can skip the January 15 payment if you file your full return and pay the remaining balance by February 1.7Internal Revenue Service. Form 1040-ES (2026) – Estimated Tax for Individuals
Safe Harbor
You can avoid the underpayment penalty even if your estimates come up short, as long as your total withholding and estimated payments hit one of two thresholds. The combined amount must equal at least the smaller of:
- 90 percent of the tax shown on your current-year return, or
- 100 percent of the tax shown on your prior-year return (which must cover a full 12 months)
If your prior-year adjusted gross income exceeded $150,000 ($75,000 if married filing separately), the 100 percent figure rises to 110 percent.7Internal Revenue Service. Form 1040-ES (2026) – Estimated Tax for Individuals Paying based on last year’s tax is the practical fix when your income swings year to year: hit the prior-year threshold and you’re safe no matter how much more you earn this year.
What Happens If You Miss the Deadline
The IRS applies two separate penalties for late compliance, one for filing late and one for paying late, and adds interest on top. They run independently.
Failure to File
Miss the filing deadline and the IRS charges 5 percent of your unpaid tax for each month or partial month the return is late, capped at 25 percent.9Internal Revenue Service. Failure to File Penalty That’s ten times heavier per month than the late-payment penalty, which is why filing on time matters even when you can’t cover the balance. When both penalties apply in the same month, the failure-to-file amount is reduced by the failure-to-pay amount so you don’t get hit with the full 5.5 percent combined.10Office of the Law Revision Counsel. 26 USC 6651 – Failure to File Tax Return or to Pay Tax
Failure to Pay
If you file but don’t pay the full balance by the due date, the IRS charges 0.5 percent of the unpaid tax for each month or partial month it stays outstanding, capped at 25 percent.11Internal Revenue Service. Failure to Pay Penalty There is no minimum below which it’s waived. It starts the day after the original due date and continues until you pay or hit the cap.
Interest
Interest on any unpaid balance runs from the original due date, compounds daily, and is set at the federal short-term rate plus 3 percentage points, recalculated each quarter.12Internal Revenue Service. Topic No. 653 – IRS Notices and Bills, Penalties and Interest Charges For the first quarter of 2026, the underpayment rate is 7 percent per year.13Internal Revenue Service. Interest Rates Remain the Same for the First Quarter of 2026 Interest cannot be waived, even for a good reason, and it accrues regardless of any filing extension you received.
Automatic Extensions for Special Situations
Some taxpayers get more time automatically, without filing Form 4868.
Living Abroad
If you’re a U.S. citizen or resident alien and your main home or workplace is outside the United States and Puerto Rico on April 15, you get an automatic two-month extension for both filing and paying, moving your deadline to June 15.14Internal Revenue Service. US Citizens and Resident Aliens Abroad – Automatic 2-Month Extension of Time to File The same applies if you’re in the military stationed outside the country. Interest still accrues on any unpaid tax from the original April 15 date, so paying early saves money even when your deadline is later. If you then request a Form 4868 extension, you get four additional months rather than six, landing on the same October 15 date.
Combat Zones
Members of the military serving in designated combat zones or contingency operations get a much longer suspension. Filing and payment deadlines are suspended for the entire period of service in the zone, plus 180 days after the last day of service, plus any days that were left before the deadline when the service member entered the zone.15Internal Revenue Service. Extension of Deadlines – Combat Zone Service No interest or penalties accrue during the extended window. The same rules cover certain civilians supporting military operations, including Red Cross personnel and contractors working under military direction.
Federal Disaster Areas
When the President declares a federal disaster area, the IRS typically postpones filing and payment deadlines for affected taxpayers through an official announcement. The relief applies automatically to anyone living or operating a business in the covered area; you don’t need to call or file paperwork. Taxpayers outside the disaster zone whose records are inside it may also qualify. The new deadline varies by disaster and appears in each IRS announcement.16Internal Revenue Service. Tax Relief in Disaster Situations
If You Can’t Pay in Full
File on time even if you can’t pay. The failure-to-file penalty is ten times steeper per month than the failure-to-pay penalty, so submitting the return without a payment cuts your charges significantly. The IRS then offers several ways to handle the balance.
- Short-term payment plan. If you can pay in full within 180 days, you can set up a short-term plan with no setup fee. Penalties and interest keep accruing, but you avoid the cost of a formal installment agreement.17Internal Revenue Service. Payment Plans – Installment Agreements
- Long-term installment agreement. For balances that need longer than 180 days, you can request a monthly plan. Setup fees range from $22 to $178 depending on how you apply and how you pay, and low-income taxpayers may qualify for reduced or waived fees.
- Offer in compromise. If you genuinely cannot pay the full amount, the IRS may accept a reduced settlement. You must have filed all required returns and be current on estimated payments to apply. A $205 application fee and an initial payment are required for most applications, though low-income taxpayers are exempt from both.18Internal Revenue Service. Offer in Compromise
How to Pay
The IRS accepts payment several ways, and the right one depends on how often you pay and whether you want to avoid fees.
- IRS Direct Pay. Free, no registration, direct debit from a checking or savings account, with immediate confirmation.19Internal Revenue Service. Direct Pay with Bank Account
- Electronic Federal Tax Payment System (EFTPS). Requires enrollment, but you can schedule payments up to 365 days in advance, see 15 months of history, and manage multiple tax types in one place.20Internal Revenue Service. EFTPS – The Electronic Federal Tax Payment System
- Credit or debit card. Available through IRS-authorized processors, with convenience fees of roughly 2.5 percent for credit cards. On a $5,000 bill, that runs about $125.21Internal Revenue Service. Pay by Debit or Credit Card When You E-File
- Check or money order by mail. Send it with the appropriate voucher (Form 1040-V with a return, or a 1040-ES voucher for estimated payments). Under federal law, the postmark date on the envelope counts as the date of payment, so a timely postmark is legal proof you paid on time.22Office of the Law Revision Counsel. 26 USC 7502 – Timely Mailing Treated as Timely Filing and Paying
Whichever method you pick, keep the confirmation number, receipt, or postmarked mailing record. If the IRS later disputes a payment, that record is your proof you met the deadline.