Today’s the tax deadline. If you can’t file your 2025 tax return, you should file an extension by midnight tonight.
Time’s up, US taxpayers. The deadline for filing your income taxes is today. You have until midnight tonight to submit your 2025 tax return electronically or have it postmarked.
There’s no cost or penalty for filing a tax extension, and most tax software will help you complete the process in a few minutes. However, there are some critical details to be aware of before you make the decision to postpone your taxes for another six months.
Read on to find all of the details for filing a tax extension in 2026 and how it will affect your tax refund or the money that you owe.
What’s the deadline to file an income tax extension?
Along with the tax return submission deadline, there’s a deadline to file for a tax extension. You’ll need to submit it by 11:59 p.m. Wednesday, April 15, in your time zone. That’s also the tax filing deadline.
How to file an income tax extension in 2026
If you’re planning to file a tax extension this year, you’ll need to submit Form 4868 (PDF) to the IRS either by paper or electronically using e-file before the April 15 deadline. As long as your electronic extension is transmitted by midnight on April 15, or your letter is postmarked by that date, your extension should be good.
However, if you think that you owe taxes, you’ll need to pay your estimated income tax due using Direct Pay, the Electronic Federal Tax Payment System or using a debit or credit card. If you don’t pay your estimated taxes with your extension and owe money, you’ll have to pay interest on that money and a potential penalty when you file.
Some taxpayers are automatically granted more time to file. This includes military personnel serving in combat zones or people in federally declared disaster areas. US citizens who live outside the country have until June 17 to file.
Does an extension give you more time to pay your tax bill?
No. Extending your filing deadline doesn’t delay when you have to pay taxes that you may owe. According to the IRS, you need to estimate and pay at least 90% of your tax liability by the deadline to avoid late fees. Otherwise, you will have accrued interest on what you owe, which you’ll eventually have to pay — plus possible penalties — on top of your income taxes.
The late-payment penalty is usually 0.5% per month of the outstanding tax not paid by the filing deadline, maxing out at 25%. The IRS can also issue a late-filing penalty of 5% of the amount due for every month or partial month your tax return is late. If your return is filed more than 60 days after the due date, the minimum late-filing penalty is either $450 or 100% of the unpaid tax (whichever is less).
For individual taxpayers, penalties and interest will stop accruing only when your balance is paid in full. For more on penalties or to work out a payment plan with the IRS, check out its web page.
How is child tax credit money related to tax returns?
The child tax credit provides benefits for parents of children, allowing them to lower the amount they owe in taxes each year based on how many dependents they claim. If you had a new baby or gained a dependent, you can both decrease the amount of taxes you owe and increase the amount you may get back in a tax refund.
The Child Tax Credit allows families to receive up to $2,200 per eligible child under the age of 17, as long as certain income requirements are met. By not filing your taxes by the deadline, you could be missing out on up to $2,200 per child.
