Irs Extension Deadline 2024 Taxes. To request an extension, you will need to fill out form 4868 and submit it to the irs by the original filing deadline, april 15, 2024. If you requested a federal tax extension this year, the deadline to file is oct.

Indeed, the irs says it automatically counts payments made by the april 15 deadline as an extension, and by taking that step, you won’t even need to file a. It’s better to formally request an extension than to simply let the deadline go by.