US federal income tax

federal income tax brackets, standard deductions, and FICA rates.

tax brackets by year

• 2026 federal tax brackets - current tax year
• 2025 federal tax brackets - previous tax year

other federal tax data

• standard deductions - 2025 and 2026, all filing statuses
• FICA rates - Social Security and Medicare rates

sources

• IRS Rev. Proc. 2024-40 (2025 brackets)
• IRS Rev. Proc. 2025-32 (2026 brackets)
• One Big Beautiful Bill Act (July 2025) - made TCJA rates permanent, increased standard deductions

data from deepcalc.com