Us Tax Brackets 2025 Calculator. 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. The federal income tax has seven tax rates in 2025:
Tax brackets divide income into ranges. Plan, calculate your current calendar year tax withholding based on your paycheck.