Is there a penalty if I fail to file the extension form by the due date?
1.5k views | Last modified 3/6/2023 5:16:56 AM EST

There is no penalty from the IRS for not filing a tax extension form. If you need more time to prepare your federal tax return, you can file an extension form no later than the regular due date of your return. 

This will give you an extension of time to file your return but does not grant you any extension of time to pay your taxes. You must estimate and pay any owed taxes by your regular deadline to help avoid possible penalties.

If you don’t file your extension by the due date, you must file your federal tax return on the regular due date, or a penalty will be charged unless you show reasonable cause for not filing on time.