Need a filing extension? Here's how to submit Form 4868 to the IRS for an automatic 6-month extension — by e-file, mail, or fax.
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Fax numbers are subject to change without notice. Always verify current fax numbers and filing instructions at irs.gov or the IRS Form 4868 page before submitting any documents.
IRS Form 4868 is the Application for Automatic Extension of Time to File U.S. Individual Income Tax Return. If you need more time to prepare your tax return, this form gives you an automatic 6-month extension. It does not extend the time to pay any taxes owed — you must still estimate and pay by the original deadline. For official instructions and the latest version of this form, visit the official IRS page.
The fastest way to file Form 4868 is electronically through IRS Free File or your tax software. You can also mail the form to the IRS. See the form instructions for the correct mailing address based on your state.
Fax is not the standard submission method for Form 4868. If you have a specific IRS fax number from correspondence or your tax professional, you can fax this form using usfax.com for instant delivery confirmation.
Fill out all required fields including your name, address, Social Security number, and estimated tax liability. Double-check your figures before submitting.
E-file through IRS Free File at irs.gov for the fastest and easiest option. You can also mail Form 4868 to the IRS address in the form instructions. If you have a specific fax number from IRS correspondence, you can fax it using usfax.com.
Keep your e-file confirmation, certified mail receipt, or usfax.com delivery confirmation as proof that you filed your extension before the deadline.
If you have a fax number from your IRS representative, use usfax.com to send your form and get delivery confirmation. No fax machine needed.
Start Sending FreeForm 4868 is the Application for Automatic Extension of Time to File U.S. Individual Income Tax Return. Filing this form gives you an automatic 6-month extension to file your federal tax return, moving the deadline from April 15 to October 15.
The easiest way is to e-file through IRS Free File at irs.gov. You can also mail Form 4868 to the IRS. Some tax software lets you file the extension electronically as well. Fax is not a standard submission method for this form.
No. Form 4868 only extends the time to file your return, not the time to pay. You must estimate and pay any taxes owed by the original due date to avoid interest and penalties.
Form 4868 must be filed by the original due date of your tax return, typically April 15. If April 15 falls on a weekend or holiday, the deadline moves to the next business day. E-filing ensures same-day delivery.
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