Tax Extensions 2023: How and When to Get One

File IRS Form 4868 — but remember that getting an extension doesn't give you more time to actually pay your taxes.
Tina Orem
Sabrina Parys
By Sabrina Parys and  Tina Orem 
Edited by Chris Hutchison
How to file a tax extension online

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The federal income tax filing deadline is April 18, 2023. If you need more time, you can get an automatic income tax extension by filing IRS Form 4868. This gets you until October 16, 2023, to file your tax return.

Here are some do’s and don’ts when it comes to tax extensions.

How do I file a tax extension?

You can get a tax extension electronically or via mail. You should request an extension on or before the April 18 deadline to avoid a late-filing penalty from the IRS.

If you don’t plan to use tax software or haven’t decided which software to use, consider IRS Free File. The IRS partners with a nonprofit organization called the Free File Alliance to provide people who make less than a certain adjusted gross income access to free, name-brand tax-prep software. Anybody — even people above the income threshold — can go there to file an extension online.

If you're planning to use tax software, make sure your provider supports Form 4868 for tax extensions. Most do. You can simply follow the program’s instructions and see how to file a tax extension electronically that way. The IRS will send you an electronic acknowledgment when you submit the form.

You can also apply for a tax extension by filling out Form 4868 on paper and sending it via snail mail (it’s less than a page long), but just get proof that you mailed it.

How long is a tax extension?

A tax extension gives you until October 16, 2023, to file your tax return.

However, getting an extension does not give you more time to pay — it only gives you more time to file your return. If you can’t file your return by the April 18 deadline, you need to estimate your tax bill and pay as much of that as possible at that time.

  • Anything you owe after the deadline is subject to interest and a late-payment penalty — even if you get an extension.

  • You might be able to catch a break on the late-payment penalty if you’ve paid at least 90% of your actual tax liability by the deadline and you pay the rest with your return.

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Tax extensions for overseas taxpayers and military members

Some folks don’t necessarily need to worry about applying for tax extensions at all. Some people automatically get more time if they meet certain criteria.

  • If you’re a U.S. citizen or resident who lived and worked outside of the country on the tax-filing deadline, you may automatically get two extra months to file your return and pay any amount due without having to request a tax extension.

  • People affected by certain natural disasters may automatically get more time, too (the time varies; check the list of qualifying disasters).

  • Some members of the military also get extra time automatically, depending on where they are and what they’re doing.

  • Federal: $24.95 to $64.95. Free version available for simple tax returns only.

  • State: $39.95 to $44.95.

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  • Federal: $19.95 to $49.95 Free version available for simple tax returns only.

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Remember to file by the October deadline

Requesting an extension and making an estimated payment is only half the work. You still have to file your final return. If you don't file by the Oct. 16 extension deadline, the penalties could get worse.

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