Federal Income Tax Forms 2025. The federal tax calculator is updated for the 2025/26 tax year and is designed for quick online tax calculations by entering your gross (total) income from tax form 1040 and your gross expenses from tax form 1040 for 2025/26. Department of the treasury and internal revenue service (irs) announced that more than 30 million taxpayers in 24 participating states will be.

A few must knows for taxpayers to. The federal tax filing deadline (tax day) is april 15, 2025, with an extension deadline of october 15, 2025.