2025 Tax Filing Deadline Extended. If happened to be running behind and you had to file an. The federal tax filing deadline (tax day) is april 15, 2025, with an extension deadline of october 15, 2025.

Any individual or business that has a 2024 return normally due during march or april 2025. For most individuals, the due date (known as ‘tax day’) for filing income tax returns is april 15, 2025.