Federal Tax Extension: File by October 15th - Avoid Penalties
Have you filed your tax return yet? Federal tax returns are due each year on April 15th.
However, you can file for an automatic tax extension if you haven’t finished your return by the deadline. The extension allows you to file your return anytime between the April 15th deadline and October 15th.
Important: Tax extensions only apply to when you file your tax return. You must pay any taxes owed on or before the April 15th deadline.
If you filed an automatic tax extension form, it is best to pay estimated taxes on the balance you owe. Otherwise you the IRS may charge you interest and penalties for late payment.
In general, you may not owe late filing or late payment penalties if you send the IRS 90% of your actual tax obligation, but there may be outlying situations where this doesn’t apply. The good news is that you will receive a refund if you overpay your taxes.
Let’s jump in and look at some important facts about filing a tax extension, the October 15th deadline, and any penalties and fees you may owe for failing to make timely payments or failure to file your tax return.
How Do Tax Extensions Work?
Filing for an automatic 6-month extension to file your taxes is easy. Simply fill out Tax Form 4868, Application for Automatic Extension of Time To File U.S. Income Tax Return (pdf) by the tax filing deadline.
The tax deadline is usually every April 15, but the actual date can vary if that date falls on a weekend or holiday. You then have until October 15th to file your taxes with the IRS.
If you missed the deadline to file for an extension, get it in ASAP, which will minimize IRS penalties and interest owed. These penalties and fees can be substantial!
How to File a Federal Tax Extension
Filing a federal tax extension is easy – just fill out Tax Form 4868 and mail it into the IRS. You can download it from the IRS website. Then mail in the form and you are good to go.
Alternatively, you can eFile your extension paperwork by using tax preparation software like TurboTax or H&R Block Online, or by using IRS Free File Fillable Forms.
If you pay state taxes, this may be all you need to do. Many states will automatically extend your state tax deadline if you receive a federal tax deadline extension.
Tax Extension Software:
TurboTax
The most popular tax software in the United States, TurboTax makes it easy to file your extension and complete your taxes. If you want to handle it yourself with guidance from a great software platform. We did a full review of TurboTax so you can research all they have to offer.
Get started with TurboTax>>
H&R Block
Easily the best known name when it comes to having bricks and mortar locations. If you prefer having the option to sit down with a live human being while doing what you can online. H&R Block is your best bet. Our H&R Block review details everything about their services.
Get started with H&R Block>>
After You File Your Tax Extension
Now comes the fun part – getting your taxes done. There are many options such as doing them yourself by hand, paying someone to do your taxes for you, or purchasing a software program such as TurboTax or H&R Block @Home.
The sooner you get them done the better. Remember, you may owe late payment penalties if you owe more in taxes than you paid. Having a deadline hanging over your head also causes unnecessary stress.
Tax payments due by April 15th, but you can file later
If you owe money on your federal taxes you are required to pay it by April 15th, regardless of whether or not you received an extension on your taxes.
The deadline only allows you to file your taxes in October (sending in the paperwork, vs. sending in the money). You don’t have anything to worry about if you are due to receive a refund.
Late Filing and Late Payment Penalties
Missing the tax deadline is not recommended. Remember, if you owe taxes this year, the payment is due to the IRS by April 15th, regardless of whether or not you have filed your actual tax return. Missing your payments can result in ugly penalties and interest charges.
It’s best to file for an extension immediately, then try to get a rough idea of what you owe in taxes and make that payment as soon as you can. Even if you can only send in a partial payment, that will help reduce the number of penalties and interest you owe.
Late filing penalties are high. The IRS will assess a late filing penalty of 5% of the unpaid taxes not paid by the due date for each month your taxes are late, usually to a maximum of 25%. It is very easy for late filing penalties to reach several hundred or several thousand dollars. If your payment is more than 60 days past due, the minimum late filing penalty is $100 or the balance of the taxes you owe, whichever is less.
Late payment penalties and interest are also assessed when you do not send the IRS your tax obligation by the tax deadline. The late payment penalty is usually 0.5% of your unpaid taxes, with the maximum also at 25%. You may be able to have your late payment penalty waived if you paid over 90% of your obligation, however, you would still owe interest on the balance due. The interest stops accruing when you pay the balance. Translation – pay your taxes ASAP to avoid large penalties and fees!
Important tax dates
- Tax Return Filing Deadline – April 15
- Tax Return Extended Filing Deadline – October 15
- Estimated Taxes Due Dates – April 15, June 15, Sept 15, Jan 15
*Note: If the due date falls on a Saturday, Sunday, or legal holiday, the due date is extended until the following business day.

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