The federal tax filing deadline is April 15 each year, unless that date falls on a weekend or holiday

For most people, you must file your federal income tax return by April 15. If April 15 falls on a Saturday, Sunday, or federal holiday, the deadline moves to the next business day. The IRS publishes the exact deadline each year on its website and on tax forms themselves.

This deadline applies whether you owe money, expect a refund, or break even. Even if you owe nothing, filing by the deadline protects you from penalties and interest. The only exception is if you request a filing extension, which moves your deadline but does not erase it.

State tax deadlines usually match the federal deadline, though a few states have different dates. Check your state tax agency's website if you live outside the state where you earned income or if you file in multiple states.

Key Takeaways

  • The federal deadline is April 15 unless it falls on a weekend or holiday, in which case it moves to the next business day.
  • You must file by the deadline even if you do not owe taxes, because filing protects you from penalties.
  • You can request a filing extension that moves your deadline to October 15, but this extends only the filing deadline, not the payment deadline.
  • If you miss the deadline without an extension, the IRS charges a failure-to-file penalty and interest on any taxes owed.
  • State tax deadlines usually match the federal deadline, but some states set their own dates.

What happens if you file after April 15 without an extension

If you file late without requesting an extension first, the IRS charges a failure-to-file penalty. This penalty is usually 5 percent of the unpaid taxes for each month or part of a month that your return is late, up to a maximum of 25 percent. The penalty applies even if you do not owe any taxes — the IRS charges it based on the tax shown on your return.

You also owe interest on any unpaid taxes from the original due date until you pay. Interest compounds daily and the rate changes quarterly. As of 2024, the rate is set by the IRS each quarter and published on its website.

If you file more than 60 days late, the minimum penalty is the smaller of $435 or 100 percent of the unpaid tax, whichever is less. This floor means even a small late return can trigger a substantial penalty.

How to request a filing extension

You can request an automatic six-month extension by filing Form 4868 (Application for Automatic Extension of Time to File U.S. Individual Income Tax Return) before April 15. Filing this form moves your deadline to October 15. You do not need to explain why you need more time, and the IRS grants the extension automatically.

Form 4868 is available on the IRS website and through most tax software. You can file it electronically, by mail, or by phone. If you file electronically, you receive confirmation immediately. If you mail it, send it to the address listed in the form instructions and keep a copy for your records.

Filing an extension does not extend the deadline to pay taxes you owe. If you expect to owe money, you should pay as much as you can by April 15 to avoid interest and penalties on the unpaid balance. You can pay online through the IRS website, by mail, or through your tax software.

Who does not have to file by April 15

If you are a U.S. citizen or resident alien living abroad on April 15, you automatically get a two-month extension to June 15 without filing Form 4868. You can request an additional four-month extension (to October 15) by filing Form 4868 before June 15.

Military members stationed outside the United States also receive an automatic extension to June 15. Active duty military can request an additional extension to October 15.

If you are a resident of Puerto Rico and meet certain conditions, you may file under Puerto Rico tax law instead of federal law, which has different deadlines and rules. Consult a tax professional or the Puerto Rico Department of Treasury for details.

What the IRS considers "filed" for deadline purposes

If you file electronically, your return is considered filed on the date the IRS receives it. Most e-filed returns are received within 24 hours. If you file by mail, your return is considered filed on the postmark date, not the date the IRS receives it. This means you can mail your return on April 14 and it counts as timely even if the IRS does not receive it until April 20.

Use certified mail or delivery confirmation if you mail your return close to the deadline, so you have proof of the postmark date. Keep the receipt until you receive confirmation that the IRS processed your return.

If you use a tax professional or tax software to file on your behalf, ask them when they will submit your return. Some software allows you to schedule filing for a specific date, which can be useful if you are close to the deadline.

State tax filing deadlines

Most states follow the federal April 15 deadline. However, a few states set their own dates or have different rules for certain filers. For example, some states align their deadline with the federal deadline only if you also filed federally by that date.

If you file a federal extension, most states automatically extend your state deadline to match. However, some states require you to file a separate state extension form. Check your state tax agency's website or call their helpline to confirm whether you need to file a separate extension.

If you owe state taxes, the same principle applies as federal taxes: the extension moves your filing deadline but not your payment deadline. Pay what you can by April 15 to avoid state penalties and interest.

Frequently Asked Questions

What if April 15 falls on a weekend?

The deadline moves to the following Monday. If April 15 falls on a Saturday, you have until Monday, April 17 to file. If it falls on a Sunday, you have until Monday, April 16. The IRS publishes the exact deadline each year in January.

Can I file my taxes early?

Yes. You can file your return as soon as you have all the documents you need — usually after January 31, when employers send W-2 forms and financial institutions send 1099 forms. Filing early can help you receive a refund sooner if one is due.

Do I have to file if I did not earn much income?

It depends on your income level and filing status. The IRS sets a threshold each year below which you do not have to file. However, if taxes were withheld from your paychecks, filing allows you to claim a refund. Check the IRS website for the current income thresholds for your situation.

What if I cannot pay the taxes I owe by April 15?

File your return on time anyway, even if you cannot pay the full amount. You will owe interest and possibly a failure-to-pay penalty, but filing on time avoids the larger failure-to-file penalty. The IRS offers payment plans and other options if you cannot pay in full.

Does filing an extension give me more time to pay?

No. An extension moves your filing deadline to October 15, but your payment deadline remains April 15. If you owe taxes, pay by April 15 to avoid interest and penalties on the unpaid balance.