Tax payment deadlines depend on what you owe and how you file
Federal income tax is due April 15 of the year following the tax year. If you file on paper, the IRS postmark date counts as your filing date. If you e-file, the submission must arrive by 11:59 p.m. Eastern time on April 15. State income tax deadlines vary by state — most align with the federal date, but some differ by a few days or weeks. Check your state's revenue or taxation department website for the exact date in your state.
The April 15 deadline applies whether you owe money or expect a refund. If you owe and miss the deadline, the IRS charges a failure-to-file penalty (usually 5% of unpaid tax per month, up to 25%) plus interest that accrues daily. A failure-to-pay penalty (0.5% per month, up to 25%) applies separately to any balance due after April 15. These penalties compound, so paying late costs more than paying on time.
If April 15 falls on a weekend or federal holiday, the deadline moves to the next business day. In 2024, April 15 was a Monday, so the deadline was April 15. In 2025, April 15 is a Tuesday. The IRS announces holiday-related deadline shifts on its website each year.
Key Takeaways
- Federal income tax returns and payments are due April 15 of the following year, with state deadlines varying by location.
- Missing the April 15 deadline triggers a failure-to-file penalty of 5% per month on unpaid tax, plus daily interest.
- E-filed returns must arrive by 11:59 p.m. Eastern time; paper returns are judged by postmark date.
- Estimated quarterly tax payments are due on specific dates throughout the year if you are self-employed or have income not subject to withholding.
- Filing for an extension moves your deadline to October 15, but does not extend the payment deadline — taxes owed are still due April 15.
Estimated quarterly tax payments have their own schedule
If you are self-employed, a freelancer, or have income that does not have taxes withheld (such as rental income or investment gains), you owe estimated quarterly tax payments. These are due four times per year on fixed dates, not on April 15.
The four quarterly payment dates are:
- Q1 (January 1 – March 31): Due April 15
- Q2 (April 1 – May 31): Due June 15
- Q3 (June 1 – August 31): Due September 15
- Q4 (September 1 – December 31): Due January 15 of the following year
If any of these dates falls on a weekend or federal holiday, the deadline moves to the next business day. Missing a quarterly payment triggers the same penalties as missing the April 15 deadline: 0.5% per month failure-to-pay penalty plus daily interest, calculated from the original due date.
You can pay estimated taxes through the IRS Direct Pay system (free, no account required), through the Electronic Federal Tax Payment System (EFTPS, requires enrollment), by credit or debit card (third-party processor charges a fee), or by check mailed to the IRS. The payment method you choose does not change the due date.
Extensions move your filing deadline but not your payment deadline
Filing for an extension through Form 4868 moves your return deadline from April 15 to October 15 — six additional months to file. However, the extension does not extend the payment deadline. Any tax you owe is still due April 15, even if you file the extension and do not submit your return until October.
If you file an extension but do not pay by April 15, you owe failure-to-pay penalties and interest on the unpaid balance from April 15 through the date you actually pay. The penalty is 0.5% per month. Interest is calculated daily at a rate set quarterly by the IRS (currently around 8% annually, but this changes). Both accrue from April 15 onward.
You can file Form 4868 electronically through tax software, through the IRS website, or by mailing the form to the IRS. Filing the extension itself is free. The extension is automatic — the IRS does not need to approve it. You have until October 15 to file your return, but you should pay any estimated tax owed by April 15 to avoid penalties.
State tax deadlines usually match federal dates but not always
Most states align their income tax deadline with the federal April 15 date. However, some states have different deadlines or do not have income tax at all. Nine states have no income tax: Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, Wyoming, and New Hampshire (which taxes only dividend and interest income, due April 15).
A few states have deadlines that differ slightly from April 15. For example, some states may accept returns postmarked by April 15 but filed electronically by a different date. Check your state's revenue or taxation department website for the exact deadline in your state. If you live in one state but work in another, you may owe tax to both — each state sets its own deadline and penalty structure.
State penalties for late payment vary widely. Some states charge a failure-to-file penalty of 5% per month (similar to federal), while others charge a flat percentage or a fixed dollar amount. Interest rates also vary by state. Paying on time in your state avoids these additional costs.
How to pay federal taxes on time
The IRS offers several payment methods, each with different processing times and fees. Choosing the right method depends on when you want to pay and whether you want to pay a fee.
IRS Direct Pay is free and allows you to pay directly from your bank account. You can schedule a payment up to 120 days in advance. The payment is processed within one business day. This is the fastest free option and requires no account setup.
Electronic Federal Tax Payment System (EFTPS) is also free but requires enrollment, which takes one to two business days. Once enrolled, you can schedule payments up to 120 days in advance. EFTPS is designed for businesses and those with large or recurring payments.
Credit or debit card payments are processed immediately, but a third-party processor charges a fee (typically 1.87% to 2.35% of the payment amount). The fee is separate from your tax payment and is not deductible. You pay the fee to the processor, not to the IRS.
Check or money order mailed to the IRS takes 7 to 14 business days to process. Write your Social Security number, tax year, and form type on the check. Mail it to the address listed on the IRS website for your state. Postmark date counts as the payment date, so mail early if you are paying close to the deadline.
If you cannot pay the full amount by April 15, you can set up a payment plan with the IRS. Short-term plans (120 days or less) are free. Long-term installment agreements charge a setup fee (currently $31 to $225, depending on the method) and monthly interest plus penalties on the unpaid balance. The payment plan does not eliminate penalties or interest — it only spreads the payment over time.
What happens if you miss the April 15 deadline
Missing the April 15 deadline triggers two separate penalties: failure-to-file and failure-to-pay. The failure-to-file penalty is 5% of unpaid tax per month (or part of a month), up to 25% total. The failure-to-pay penalty is 0.5% per month, up to 25% total. If you file late but pay on time, you only owe the failure-to-file penalty. If you pay late, you owe both.
Interest accrues daily on any unpaid balance from April 15 until you pay. The interest rate is set quarterly by the IRS and is currently around 8% annually. Interest compounds daily and is not capped. The longer you wait to pay, the more interest you owe.
If you owe $10,000 and miss the April 15 deadline by three months, you owe approximately $375 in failure-to-pay penalties (3 months × 0.5% × $10,000) plus roughly $200 in interest (assuming 8% annual rate), for a total of $10,575. Paying immediately after the deadline is always cheaper than waiting.
If you cannot pay by April 15, file your return anyway and pay as much as you can. The failure-to-file penalty (5% per month) is much steeper than the failure-to-pay penalty (0.5% per month), so filing on time even without full payment reduces your total penalty. Then contact the IRS to set up a payment plan for the remaining balance.
Frequently Asked Questions
What if April 15 falls on a weekend or holiday?
The deadline moves to the next business day. If April 15 is a Saturday, the deadline becomes Monday, April 17. If it is a Sunday, the deadline becomes Monday, April 16. If it falls on a federal holiday, the deadline moves to the next non-holiday business day. The IRS announces these shifts each year on its website.
Do I have to pay taxes if I file an extension?
No, filing an extension does not change what you owe. If you owe tax, it is due April 15 regardless of whether you file an extension. The extension only gives you until October 15 to file your return. Paying by April 15 avoids failure-to-pay penalties and interest.
Can I pay my federal taxes with a credit card?
Yes, but a third-party processor charges a fee of 1.87% to 2.35% of the payment amount. The fee is in addition to your tax payment and is not deductible. IRS Direct Pay is free and faster, so use that unless you need to earn credit card rewards or have a specific reason to use a card.
What if I owe both federal and state taxes?
Federal and state deadlines are separate. Most states align with the April 15 federal deadline, but some differ. Check your state's revenue or taxation department website for the exact date. Pay both by their respective deadlines to avoid penalties in each jurisdiction.
Does paying late affect my credit score?
The IRS does not report unpaid taxes to credit bureaus unless the debt is referred to the Treasury Offset Program or a federal tax lien is filed. However, unpaid taxes can result in wage garnishment, bank levies, and passport denial. Paying as soon as possible avoids these consequences.