Updated October 24, 2026. Quick answer: Tax Topic 304 says you may request up to an additional 6 months to file, and that the request must be made by the due date of your return. An extension to file is not an extension to pay. There are three ways to ask, plus a separate automatic rule for people outside the United States.
Quick reference
| Item | What the IRS topic says |
|---|---|
| Length of extension | “You may request up to an additional 6 months to file your U.S. individual income tax return.” |
| When to request | “You must request the extension of time to file by the due date of your return to avoid the penalty for filing late.” |
| Extension and payment | “An extension of time to file is not an extension of time to pay.” |
| Fiscal year filers | “Note: Fiscal year taxpayers may request extensions only by filing a paper Form 4868.” |
| Out of the country | “You’re allowed two extra months (generally until June 15) to file your return and pay any tax due without requesting an extension” |
Three ways to request
The topic says “There are three ways to request an automatic extension of time to file your return.” The first is a payment: “Pay all or part of your estimated income tax due and indicate that the payment is for an extension of time to file your return”. The topic lists the ways to make it, including “IRS Direct Pay, Online account, EFTPS: The Electronic Federal Tax Payment System, a debit or credit card or a digital wallet”. It adds “You’ll receive a confirmation number for your records.”
The second is “E-file Form 4868, Application for Automatic Extension of Time To File U.S. Individual Income Tax Return using your personal computer or through a tax professional who uses e-file.”
The third is “File a paper Form 4868.” Details on the form are on the Form 4868 page.
Filing Form 4868 electronically
The topic gives a preparation tip: “If you file the Form 4868 electronically, be sure to have a copy of your prior year’s return”. It explains why: “you’ll be asked to provide your prior year’s adjusted gross income (AGI) amount for verification purposes.”
After filing, the topic says “Once you file, you’ll receive an electronic acknowledgement that the IRS has accepted your filing.” It continues “Keep this for your records.”
On free filing, it says “Several companies offer free filing of Form 4868 through the Free File program.” And on paying, “If you wish to make a payment, you should pay electronically.” A payment sent with an extension is reported on Schedule 3 line 10.
Out of the country and the extra 4 months
The automatic rule applies when, on the due date of your return, you are either “Living outside of the United States and Puerto Rico, and your main place of business or post of duty is outside of the United States and Puerto Rico” or “In military or naval service on duty outside of the United States and Puerto Rico.”
The topic points to “Publication 54, Tax Guide for U.S. Citizens and Resident Aliens Abroad.” It also sets a paperwork step: “you must attach a statement to your return explaining which of the two situations qualify you for the extension.”
Interest still runs: “You’ll still have to pay interest on any tax not paid by the unextended due date of your return.”
A longer period is possible: “You can also receive an additional 4-month extension of time to file (or, a total of six months) if you file Form 4868 and check the box on line 8 to indicate that you need an additional 4 months to file your return.” The topic closes with “The additional 4-month period is not an extension of time to pay.”
Where this comes from
This page describes the IRS page titled Topic no. 304, Extensions of time to file your tax return, as served on irs.gov on October 24, 2026. The IRS page shows that it was last reviewed or updated on 24 Sep 2026. The IRS can change a topic after we read it, and the IRS page controls. General information, not tax or legal advice.
Common mistakes
- Reading an extension as more time to pay. The topic says “An extension of time to file is not an extension of time to pay.”
- Asking after the due date. The topic says “You must request the extension of time to file by the due date of your return”
- E-filing a fiscal year request. The topic says “Fiscal year taxpayers may request extensions only by filing a paper Form 4868.”
- Skipping the statement under the out of the country rule. The topic says “you must attach a statement to your return explaining which of the two situations qualify you for the extension.”
- Expecting the 2 month rule to stop interest. The topic says “You’ll still have to pay interest on any tax not paid by the unextended due date of your return.”
Related: IRS tax topics by number, Form 4868, Tax Topic 301, filing requirements and due date, Schedule 3 line 10, amount paid with extension, Form 1040 due date, and Form 1040.
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Answer againSources
- IRS, Topic no. 304, Extensions of time to file your tax return (irs.gov): https://www.irs.gov/taxtopics/tc304
- IRS, Tax topics index (irs.gov): https://www.irs.gov/taxtopics
Read from the IRS pages linked above on October 24, 2026. General information, not tax or legal advice. The IRS topic page and the instructions for your own form control, and your own facts decide the outcome.