Tax Day in the United States is April 15, unless that date falls on a weekend or federal holiday

The federal income tax filing deadline is April 15 each year. When April 15 falls on a Saturday or Sunday, the deadline moves to the following Monday. If April 15 coincides with a federal holiday observed in Washington, D.C., the deadline shifts to the next business day. For the 2024 tax year, Tax Day was April 15. For the 2025 tax year, Tax Day is April 15.

The IRS does not grant automatic extensions simply because you did not file on time. You must request an extension before the deadline passes. An extension gives you until October 15 to file your return, but it does not extend the deadline for paying taxes owed.

Key Takeaways

  • Tax Day is April 15 unless that date falls on a weekend or federal holiday, in which case it moves to the next business day.
  • Filing an extension moves your deadline to October 15, but you still owe taxes by April 15 if you expect to pay.
  • Penalties and interest begin accruing on April 16 if you owe taxes and do not pay by the original deadline, even if you filed an extension.
  • You can file an extension using Form 4868, which you submit to the IRS before the original Tax Day deadline.

How to Request a Filing Extension

To extend your filing deadline, you submit Form 4868 (Application for Automatic Extension of Time To File U.S. Individual Income Tax Return) to the IRS. You must send or file this form before April 15. Filing the form electronically through tax software or the IRS website is faster and gives you immediate confirmation.

An extension is automatic once you file Form 4868 correctly. You do not need approval from the IRS. The extension runs from April 15 to October 15 — six additional months to prepare and file your return.

If you file an extension but do not file your actual tax return by October 15, penalties increase. The failure-to-file penalty is steeper than the failure-to-pay penalty, so filing late costs more than paying late.

What Happens If You Miss Tax Day Without an Extension

If April 15 passes and you have not filed a return or requested an extension, the IRS begins charging penalties and interest. The failure-to-file penalty is typically 5 percent of the unpaid tax for each month or part of a month that the return is late, up to 25 percent total. Interest accrues daily on any unpaid balance.

The IRS may also send you a notice of deficiency, which is a formal letter stating that you owe additional tax. This notice gives you the right to dispute the amount in Tax Court, but you must respond within the timeframe stated in the letter.

If you owe a substantial amount and do not respond, the IRS can place a lien on your property, garnish your wages, or seize your bank account. These enforcement actions do not happen immediately, but they can occur months or years after the original deadline if the debt remains unpaid.

State Tax Day May Differ From Federal Tax Day

Most states that collect income tax align their deadline with the federal deadline of April 15. However, some states observe different rules. A few states do not collect income tax at all, so residents in those states have no state tax filing requirement.

If you live in a state with income tax, check your state's tax authority website to confirm the deadline. Some states grant automatic extensions that match the federal extension, while others require a separate state extension form. Filing a federal extension does not automatically extend your state deadline.

Tax Day for Self-Employed People and Quarterly Payments

Self-employed individuals and business owners must make quarterly estimated tax payments throughout the year, not just on Tax Day. These payments are due on April 15, June 15, September 15, and January 15 of the following year. Missing a quarterly payment triggers penalties and interest on that specific quarter's underpayment.

Your annual tax return is still due on April 15 (or the extended date if you file Form 4868). The quarterly payments do not replace the annual return; they are prepayments toward your total tax liability for the year.

What to Do If You Cannot Pay by Tax Day

If you file your return on time but cannot pay the full amount owed, you still face penalties and interest starting April 16. However, filing on time keeps the failure-to-file penalty from accruing — only the failure-to-pay penalty applies, which is lower.

You can set up a payment plan with the IRS if you owe more than you can pay immediately. Short-term plans (120 days or less) are free. Long-term installment agreements charge a setup fee and monthly interest. You can request a payment plan through the IRS website, by phone, or by mail with your tax return.

If you are experiencing severe financial hardship, you may request Currently Not Collectible status, which temporarily pauses collection action. This does not erase the debt, but it stops penalties and interest from accruing while you are in that status.

Frequently Asked Questions

What if Tax Day falls on a holiday I observe for religious reasons?

The IRS recognizes only federal holidays observed in Washington, D.C. as reasons to move Tax Day. Religious observances do not automatically shift the deadline. However, you can file an extension if you need more time for any reason, including religious observance.

Can I file my taxes after October 15 if I filed an extension?

You can file after October 15, but penalties and interest continue to accrue from April 15 onward. Filing late after an extension triggers the failure-to-file penalty. The sooner you file, the sooner you stop accumulating penalties.

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

Filing requirements depend on your income level, age, and filing status. The IRS website has a tool to determine whether you must file. Even if you are not required to file, you may want to file if you paid taxes through withholding or are due a refund.

What if my employer did not send my W-2 by Tax Day?

Employers must send W-2 forms by January 31. If you do not receive yours by late February, contact your employer or call the IRS. You can file an extension to give your employer time to send the form, or you can file using an estimate and amend your return later when the W-2 arrives.

Does filing an extension mean the IRS will audit me?

Filing an extension does not increase your chances of an audit. The IRS selects returns for audit based on other factors, such as income level, deductions claimed, and random selection. An extension is a routine administrative action.