Tax extension guide
Tax Extension Help
Running out of time before April 15? You can request six more months to file your federal return in a few minutes online. Start with the steps below, and pay what you can by April 15 to keep penalties and interest low.
Filing IRS Form 4868 gives you an automatic six-month extension to file your federal return, moving your deadline from April 15, 2026 to October 15, 2026. An extension gives you more time to file, not more time to pay. Any tax you owe is due April 15.
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- Updated for 2026
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What you need to know
What a tax extension covers, and what it doesn't
More time to file, not to pay
Your return can wait until October 15, 2026. Pay what you owe by April 15 to avoid the failure-to-pay penalty.
Automatic, no reason needed
A timely Form 4868 gets you six extra months. The IRS doesn't ask why you need them.
Almost anyone can request one
Individuals use Form 4868. Businesses, trusts and estates use Form 7004.
Filing late costs more than paying late
The failure-to-file penalty is 5% a month. The failure-to-pay penalty is 0.5% a month. Both cap at 25%.
Understand the filing timeline
Tax extension deadlines for 2026
Key IRS dates for 2025 tax returns filed in 2026.
- 1
Apr 15, 2026
Original deadlineFile your return or Form 4868, and pay any tax you owe.
- 2
Jun 15, 2026
If you live abroadAutomatic 2-month extension for qualifying U.S. citizens and residents abroad. Interest starts April 15, but the failure-to-pay penalty waits until after June 15.
- 3
Oct 15, 2026
Extended deadlineYour return is due if you filed Form 4868 on time.
- 4
After Oct 15
Failure-to-file penalty appliesMost filers can't extend again. File as soon as you can.
Step by step
How to file a tax extension with Form 4868
Four steps, most of which take a few minutes online.
- 1
Estimate what you owe
You'll need your name, address and Social Security number, an estimate of your total 2025 tax, and what you've already paid through withholding or estimated payments.
- 2
Choose how to file
Two ways to request your extension online.
- 3
Pay what you can by April 15
Even a partial payment lowers penalties and interest. You can pay with IRS Direct Pay, EFTPS, a debit or credit card, an electronic funds withdrawal when you e-file, or a check or money order. If you can't pay in full, set up an IRS payment plan for the rest.
- 4
Keep proof, then file by October 15
Save the IRS acknowledgment for your e-filed extension, or your certified mail receipt if you mailed it. Then file your full return by October 15.
Eligibility
Who can file a tax extension?
Almost everyone. The form depends on who is filing.
Individuals: Form 4868
- Single, married and head of household filers, including the self-employed.
- Married couples filing jointly can request one extension together. Filing one extension for both spouses
- You can request an extension even if you owe. Pay what you can by April 15 to limit interest and penalties.
Businesses, trusts and estates: Form 7004
- Partnerships, corporations, certain LLCs, trusts and estates.
- More time to file, not to pay. Tax is still due by the original deadline.
- Business tax extension guide
Living outside the U.S.? You may get until June 15 automatically
U.S. citizens and resident aliens get an automatic 2-month extension, with no Form 4868, if on the April 15 due date they either live outside the U.S. and Puerto Rico with their main place of business or post of duty abroad, or are in military or naval service on duty outside the U.S. and Puerto Rico. Interest on unpaid tax starts April 15. Filing an extension as a resident alien
See how to file a tax extension, step by step
A short walkthrough of requesting your extension, paying what you owe and saving your IRS acknowledgment.
Estimate the cost of paying late
What skipping the extension costs
Say you owe $5,000 and pay it in full 3 months after April 15. Without an extension, your return is also 3 months late. Interest is the same either way, so only the penalties are shown.
Filed an extension
Failure-to-pay penalty, 0.5% a month for 3 months: $75
No failure-to-file penalty, because your return isn’t due until October 15.
Total penalties: $75
No extension
Failure-to-file penalty, 4.5% a month for 3 months: $675
Failure-to-pay penalty, 0.5% a month for 3 months: $75
Total penalties: $750
Run your own numbers
Interest comes on top in both cases. The IRS sets the rate at the federal short-term rate plus 3 points, which made it 7% for October to December 2026. Enter what you owe and how late you expect to pay, and the calculator adds both.
Scenario examples
Common situations
Find your situation and the guide that covers it.
I own a business
Form 7004Partnerships, corporations and many LLCs use Form 7004, with different deadlines.
I missed April 15
Act quicklyYou can still file. Filing as soon as possible limits the failure-to-file penalty.
I can't pay in full
Options availableFile the extension anyway. It stops the larger failure-to-file penalty, and a payment plan can cover what you can't pay by April 15.
Explore guidance
Explore tax extension guidance
Every tax extension article in one place, grouped by what you need.
Get more time
How extensions work, how long they last and the forms you need.
Pay, penalties & after you file
What you owe, what paying late costs, and what comes next.
Special situations
Business, estates, living abroad, disasters and state rules.
- Special extension rules
- Business tax extension
- Trust and estate extension
- State tax extension guide
- States that accept the federal extension
- Filing an extension as a resident alien
- Extensions after a natural disaster
- Tax extensions and bankruptcy
- K-1 owners: does a business extension cover your return?
- U.S. Tax Complexity Map by state
Common questions
Myths, mistakes and who can file for you.
Tax Extension Basics
E-file Form 4868 online with FileTax.com, pre-fill Form 4868 with FileTax.com and mail it to the IRS postmarked by April 15, or pay electronically and mark the payment as an extension.
Still have questions? See all tax extension FAQs
Reviewed for accuracy. Backed by IRS guidance.
PRIMARY IRS SOURCES
Tax rules can change. Review your specific situation or consult a tax professional if you're unsure how this applies to you.
We're here to help
Get your extension filed in minutes
E-file Form 4868 with FileTax.com and see the IRS acknowledgment in your dashboard once your extension is accepted.
✔️ Step-by-step guidance
✔️ IRS acceptance status in your dashboard
✔️ Help from tax professionals when you need it
✔️ Step-by-step guidance
✔️ IRS acceptance status in your dashboard
✔️ Help from tax professionals when you need it
