when is last day to file taxes

The last day to file individual federal income taxes for the 2024 tax year (filed in 2025) in the USA is April 15, 2025. If an extension is filed using Form 4868, the deadline to file is extended to October 15, 2025. The April 15 deadline may move to the next business day if it falls on a weekend or holiday, but in 2025 it remains April 15. Taxes owed must still be paid by April 15 to avoid penalties, even if an extension to file is granted.