Form 4868 FAQ
Quick answer
Short answers to the questions people ask most about Form 4868 and personal tax extensions, each linking to the full guide. For 2026 returns, Form 4868 is due April 15, 2027 and extends your return to October 15, 2027.
Basics
What is Form 4868?
The IRS application for an automatic extension of time to file your individual income tax return. It gives most people 6 more months. Form 4868 explained.
When is Form 4868 due?
April 15, 2027 for 2026 returns. Out of the country or a 1040-NR filer without U.S. wages: June 15, 2027. All deadlines.
How long does the extension last?
Until October 15, 2027 for most people.
Do I need a reason?
No. The extension is automatic, and the IRS contacts you only if it's denied.
Do I have to sign it?
No. Form 4868 has no signature line.
Filing it
Can I file Form 4868 online for free?
Yes, through IRS Free File, with no income limit for extensions. How.
Do I need to file Form 4868 if I pay online?
Not if you mark the payment as an extension. The IRS processes the extension automatically. How.
Where do I mail it?
It depends on where you live and whether a payment is enclosed. Look up your address.
Does one form cover my spouse?
Yes, if you'll file jointly. Separate filers each file their own. Joint extensions.
I don't have an SSN. What do I enter?
Your ITIN if you have one. If not, write "ITIN TO BE REQUESTED."
Can I file Form 4868 after the deadline?
No. It has to be filed by the original due date. File your return as soon as you can instead. Last-minute options.
Paying
Does an extension give me more time to pay?
No. Tax is due April 15, 2027. How paying works.
What if I can't pay?
File the extension anyway and pay what you can. Look at an IRS payment plan for the rest.
Where do I report the payment on my return?
Schedule 3, line 10 of Form 1040, 1040-SR or 1040-NR.
After you file
Will the IRS confirm my extension?
Not for paper. E-filed extensions get an acknowledgment, and online payments a confirmation number. How to know the IRS got it.
Do I attach Form 4868 to my return?
No.
Does it extend my state return?
Not automatically. Check your state's tax agency.
Does it extend my gift tax return?
Yes. It also extends the time to file Form 709 or 709-NA for the same calendar year, but not the time to pay that tax.
My business needs an extension too.
Partnerships, corporations, trusts and estates use Form 7004. Form 4868 vs Form 7004.
Fill out Form 4868 free. No account, and your Social Security number never leaves this page.