Fill out IRS Form 4868 Online in 2026

Form 4868 is used to:

• Request an automatic 6-month extension to file your Form 1040, 1040-SR, 1040-NR, or 1040-SS.
• Avoid the late-filing penalty (5% per month, up to 25%) by notifying the IRS that you need more time.
• Make a payment toward your estimated tax liability — while not required, paying with the extension helps reduce interest and the late payment penalty.

1. Complete Part I — Identification:

• Enter your name(s) as they will appear on your tax return.
• Enter your address (street, city, state, ZIP code).
• Line 2: Your Social Security number.
• Line 3: Your spouse's Social Security number (if filing jointly).

2. Complete Part II — Individual Income Tax:

• Line 4: Estimate your total tax liability for the year. Use your prior year's return and current income records to make this as accurate as possible — if the IRS determines your estimate wasn't reasonable, the extension can be voided.
• Line 5: Enter total payments already made (withholding, estimated tax payments). Do not include the amount you're paying with this form.
• Line 6: Subtract line 5 from line 4 to find your balance due.
• Line 7: Enter the amount you're paying with this extension. You're not required to pay, but paying as much as you can limits interest and penalties.

3. Check applicable boxes (if any):

• Line 8: Check this box if you are "out of the country" — meaning you live and work outside the U.S. and Puerto Rico. You automatically get 2 extra months to file (to June 15), and Form 4868 gives you an additional 4 months beyond that.
• Line 9: Check this box if you file Form 1040-NR and did not receive wages subject to U.S. income tax withholding.

4. Submit your extension:

• You don't need to file the paper form if you pay electronically and indicate it's for an extension — the IRS will auto-process it.
• To e-file, use IRS Free File, your tax software, or a tax professional.
• To mail, send the paper form to the IRS address for your state (addresses differ based on whether you're including a payment).

Any individual taxpayer who needs more time to file their federal income tax return can file Form 4868, whether you're employed, self-employed, retired, or have any other source of income. You don't need to explain why you need the extension, and the IRS will only contact you if the request is denied.

Note: You don't need to file Form 4868 at all if you make an electronic tax payment and indicate it's for an extension. The IRS automatically processes the extension when you pay electronically through IRS Direct Pay, EFTPS, or by credit/debit card.

Form 4868 is not needed if:

• You can file your tax return by the original April 15 deadline.
• You make an electronic payment and select "extension" as the payment type — the IRS processes the extension automatically without a separate form.
• You are a U.S. citizen or resident living and working outside the United States and Puerto Rico — you automatically get a 2-month extension to June 15 without filing any form. However, interest still accrues on unpaid taxes from April 15, and you can file Form 4868 if you need an additional 4 months beyond June 15.

Form 4868 must be filed by the original due date of your tax return — April 15, 2026, for most calendar year filers. If April 15 falls on a weekend or holiday, the deadline moves to the next business day.

For taxpayers who are "out of the country," the form is due by June 15, 2026, if you need time beyond the automatic 2-month extension.

There are three ways to file tax Form 4868:

• Electronically (recommended): Pay all or part of your estimated tax using IRS Direct Pay, EFTPS, or credit/debit card and select "extension" — no paper form needed. You can also e-file Form 4868 through IRS Free File or your tax software.
• By mail with payment: Send Form 4868 and your check or money order to the IRS payment address for your state (for example, P.O. Box 1302, Charlotte, NC 28201-1302 for AL, FL, GA, LA, MS, NC, SC, TN, TX).
• By mail without payment: Send Form 4868 to the IRS processing center for your state (for example, Austin, TX 73301-0045 for AL, FL, GA, LA, MS, NC, SC, TN, TX).

The correct address depends on your state and whether you're including a payment — check the Form 4868 instructions for the full state-by-state table.

Form 1040 / 1040-SR / 1040-NR – U.S. Individual Income Tax Return 

Form 4868 extends the filing deadline for the tax return from April 15 to October 15. Any payment made with Form 4868 is reported on Schedule 3, line 10 when you file your return. 

Who uses it: All individual taxpayers filing a federal income tax return.

Form 2350 – Application for Extension of Time to File U.S. Income Tax Return 

Used by U.S. citizens and residents abroad who need extra time beyond the standard 6-month extension to meet the bona fide residence or physical presence test for foreign earned income exclusion. 

Who uses it: Taxpayers living outside the United States who expect to qualify for special tax treatment under the foreign earned income exclusion.

Form 8892 – Application for Automatic Extension of Time to File Form 709 

Used to request an extension for filing the gift and generation-skipping transfer tax return. While Form 4868 automatically extends the deadline for Form 709, Form 8892 is needed if you want to make a gift/GST tax payment with the extension. 

Who uses it: Taxpayers who made gifts exceeding the annual exclusion and need more time to file Form 709.

Form W-7 – Application for IRS Individual Taxpayer Identification Number 

Used by nonresident and resident aliens who are not eligible for a Social Security Number to obtain an ITIN for tax filing purposes. While an ITIN is not required to file Form 4868, you will need one to file your income tax return.

Who uses it: Aliens who need a taxpayer identification number for U.S. tax purposes.