US Federal Income Tax Calculator
- AGI
- —
- Taxable income
- —
- Federal income tax
- —
- Effective rate
- —
- Marginal rate
- —
Bracket breakdown
TY 2025 IRS brackets (Rev. Proc. 2024-40). Standard deductions reflect the OBBBA 2025 increases: $15,750 single/MFS, $31,500 MFJ, $23,625 HOH. Does not model AMT, capital gains, QBI, or credits.
How to use US Federal Income Tax Calculator
- Enter your filing status and taxable income.
- The calculator applies the 2025 tax year IRS brackets (Rev. Proc. 2024-40) and the OBBBA-updated standard deduction ($15,750 single/MFS, $31,500 MFJ, $23,625 HOH).
- See your tax owed, marginal rate, and effective rate.
Limitations
- Covers federal income tax only — state income tax, payroll taxes (Social Security/Medicare), and tax credits (child tax credit, EITC, etc.) aren't included. This estimates federal tax liability, not your final refund or take-home pay.
Frequently asked questions
Does this include state taxes?
No — this is federal only. Use the paired US State tax calculators for your specific state.
About this tool
US Federal Income Tax Calculator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Tax & Government — US Federal. Browse more Tax & Government — US Federal tools.