File Form 4868 Online for 2026 Tax Year

What Is Form 4868?

Form 4868, Application for Automatic Extension of Time To File U.S. Individual Income Tax Return, gives individual taxpayers 6 more months to file their federal income tax return. The extension is automatic, so you do not need to explain to the IRS why you need more time. It covers Forms 1040, 1040-SR, 1040-NR, 1040-PR, and 1040-SS, and certain Forms 1040-NR-EZ filed for prior tax years. The extension covers the time to file only. Tax owed is still due by the original filing deadline.

Who Must File Form 4868?

Eligible individuals who cannot complete their federal income tax return by the regular due date can file Form 4868. This includes U.S. citizens, resident aliens, and certain nonresident aliens. Taxpayers who make an electronic payment and designate it as an extension payment do not need to file Form 4868 separately. The IRS processes the extension automatically when the electronic payment is made.

What Must Be Reported on Form 4868?

Form 4868 asks for 2 types of information. First, your name, address, and Social Security number. Second, 4 tax figures:

• Estimated total tax liability for the year
• Total payments already made through withholding, estimated tax payments, and refundable credits
• Balance due after subtracting total payments from the total tax liability
• Amount you’re paying with Form 4868

What's New in Form 4868 for the 2026 Tax Year?

For TY 2026, 2 changes affect how individual filers use Form 4868.

Under the One Big Beautiful Bill Act (OBBBA), enacted July 4, 2025, new deductions under Schedule 1-A apply for tax years 2025 through 2028. These deductions may reduce taxable income, so eligible filers should factor them into their Line 4 tax estimate. The minimum late-filing penalty also increased to $525 for returns required to be filed in 2026 and later, including TY 2025 and TY 2026 individual returns filed during those periods.

Form 4868 Filing Requirements

To qualify for an automatic extension, you'll generally need to meet these requirements.

• File Form 4868 by the original due date of your return.
• Estimate your total tax liability as accurately as possible and enter it on Line 4. Form 4868 must show a properly estimated tax liability based on available information.
• Pay as much of your total tax liability as possible by the original due date through withholding, estimated payments, or a payment made with Form 4868. To avoid the late-payment penalty during the extension period, generally at least 90% of your total tax liability must be paid by the original due date, and the remaining balance must be paid with your return.
• If you are outside the U.S. on the original due date, you may already qualify for an automatic 2-month extension. Form 4868 can provide an additional 4 months if you need more time beyond that.

Form 4868 Due Dates for the 2026 Tax Year

For TY 2026, here are the key Form 4868 due dates. Tax owed is due by April 15, 2027, regardless of the filing extension.

How to eFile Form 4868 with 1099Online

1099Online is an IRS-authorized eFile provider. Creating an account is free, and you only pay when you file. Follow these 4 steps to submit your Form 4868 extension request.

Step 1: Enter Tax Estimate and Payment Information

Enter your personal information, including your name, address, and Social Security number. Then enter your estimated total tax liability, total payments already made through withholding or estimated payments, and the remaining balance due.

Step 2: Include a payment if needed

Include a payment with your extension request if you owe tax. You can also proceed with the extension and make your tax payment separately before the original due date.

Step 3: Review and transmit

Review your filing summary and submit your extension request securely to the IRS. 1099Online transmits your Form 4868 electronically, so a mailed copy is not required.

Form 4868: Frequently Asked Questions