First Day To File 2025 Tax Return. Once taxpayers have completed their federal tax return, the direct file system automatically guides them to state tools to complete their state tax filings. Here, we cover all you need to know about the 2025 tax timeline, including the deadline for filing and.

The federal tax filing deadline (tax day) is april 15, 2025, with an extension deadline of october 15, 2025. Due date for companies with employees to file the first quarter 2025 payroll tax return using form 941.