File a Tax Extension Online and Extend Your Deadline to October 15

Failure to file your income tax return when it is due can be a costly mistake. It includes a fine of up to 5% of your liability per month. However, there is a convenient provision for obtaining an IRS tax extension for filing your taxes.

What is a Tax Extension and How Does It Work?

For the 2025 tax year, the filing deadline is Tuesday, April 15, 2026. An automatic IRS extension for up to six months can be obtained by completing a Form 4868 with the Internal Revenue Service, but the extension must be filed by or before the federal due date. Once filled, a 1040 return can be completed anytime after the tax filing deadline and before October 15.

Form 4868 can be filed electronically or by mail. The IRS recommends e-filing for faster, more accurate processing and immediate confirmation of receipt.

On Form 4868, you will be asked to estimate your total tax liability. You will also be asked for the sum of all payments that have been made during the tax year, through federal withholding and estimated payments. From this, you will need to determine the approximate amount due, if any.

Important: Adding an extension of time to file does not add an extension of time to pay your tax due. Not paying your tax due by the original deadline (April 15, 2026) may result in a "failure to pay" penalty of half one percent of the unpaid taxes for each month or part of a month the tax is unpaid.

The IRS will charge interest on any unpaid tax from the original due date until the date it's paid in full. The interest rate is determined quarterly and is the federal short-term rate plus 3%.

Extension Deadline: Key Dates for the 2025 Tax Year

Deadline	Date	What It Covers
File Form 4868 (extension request)	April 15, 2026	Must be submitted by this date to be valid
Pay taxes owed	April 15, 2026	An extension does not extend the payment deadline
File your completed return	October 15, 2026	Final deadline if you requested an extension
U.S. citizens abroad (automatic)	June 15, 2026	Automatic 2-month extension; no form required
U.S. citizens abroad + Form 4868	October 15, 2026	Form 4868 extends from the June 15 date by four additional months

If April 15 falls on a weekend or federal holiday, the deadline moves to the next business day. The IRS announces any changes to standard deadlines at IRS.gov. For a complete list of all federal tax deadlines, see our tax deadline guide.

What You Need To File Form 4868

Before filing, you'll need to gather the following:

• Your name and address. Use the name on file with the Social Security Administration (SSA). If your name has changed since your last return, update SSA records before submitting.
• Social Security Number (SSN). Required for all filers. If filing jointly, include your spouse's SSN. Non-residents without an SSN should use their Individual Taxpayer Identification Number (ITIN).
• Estimated total tax liability. Your best estimate of the total tax you expect to owe for the year. This does not need to be exact, but an unreasonable estimate can invalidate your extension.
• Total payments made. The sum of withholding and estimated payments already made during the tax year.
• Balance due (if any). Subtract your payments from your estimated liability. If you owe, you should pay as much as possible when you file the extension.

How To File A Tax Extension With E-File.com

E-File.com offers the ability to e-file your tax extension for a fee of $29.99. In 2026, all extensions purchased on E-file.com include our 1040 tax return software, completely free of charge. This allows users who file an extension with us to come back after the filing deadline and before October 15 to file their tax return for free.

When you file your extension through E-file.com:

• We submit Form 4868 electronically and provide an IRS acceptance confirmation number.
• Your personal information is saved, so completing your 1040 later takes less time.
• Your federal tax return preparation is included; no additional purchase needed.

What a Tax Extension Does and Doesn't Cover

Remember that you have to pay any taxes that are owed to the IRS by the federal due date, or you will owe interest on any unpaid tax. An extension does not provide more time to pay your tax bill; just file your return.

You will be charged 0.5% of the unpaid amount per month or partial month that passes until you pay the due amount. If you cannot pay the full amount owed by the deadline, it's still beneficial to pay as much as possible to reduce penalties and interest. The IRS may waive these penalties if you pay more than 90% of what is owed by the regular due date and the rest by the extension due date.

Special Circumstances

There are a few exceptions for filing IRS tax extensions:

Someone who is living outside the country and whose main place of business is also outside the country has an automatic two-month extension for filing. If more time is needed, you can request four months in addition to the two months automatically provided.

Military personnel serving in a combat zone or certain other hazardous situations have special extensions that correspond to their time abroad. These tax extensions are automatically provided.

Residents of states affected by federally declared disasters may also receive automatic extensions. The IRS typically announces these special relief provisions when disasters occur.

State Tax Extensions

It's important to note that a federal extension doesn't automatically extend your state tax filing deadline in all states. Some states grant automatic extensions if you received a federal extension, while others require you to file a separate state form. Be sure to check your state's tax agency website for specific requirements and deadlines.

Filing for an extension is always preferable to filing late or inaccurately. Just remember to pay any taxes that are owed by the federal due date to avoid any interest or penalties.

Extend Your Deadline with E-File.com

Ready to extend your deadline? File Form 4868 electronically with E-file.com in minutes. Your 2025 federal tax return is included free with every extension purchase.

Frequently Asked Questions

What is the deadline to file a tax extension in 2026?

The deadline to file Form 4868 and request a tax extension for the 2025 tax year is April 15, 2026, the same as the original filing deadline. Once your extension is approved, your new deadline to file your completed return is October 15, 2026. The IRS does not grant a second extension beyond October 15 under normal circumstances.

Does filing a tax extension give me more time to pay?

No. A tax extension extends only the deadline to file your return, not the deadline to pay taxes owed. Any balance due is still owed by April 15, 2026. Paying late triggers a failure-to-pay penalty on the unpaid amount, plus interest at the federal short-term rate plus 3%.

What happens if I miss the October 15 extension deadline?

If you do not file your return by October 15, 2026, your return is considered late and the IRS may assess a failure-to-file penalty of 5% of unpaid taxes per month. If your return is more than 60 days late, a minimum penalty applies.

File as soon as possible after the deadline, pay what you can and consider requesting penalty abatement if you have a reasonable cause. The IRS offers first-time penalty abatement for taxpayers with a clean compliance history.

Can I file a tax extension if I'm getting a refund?

Yes. There is no penalty for filing a tax extension when you expect a refund. You are not required to make a payment when filing Form 4868 if you do not owe taxes. However, filing your return sooner means receiving your refund sooner.