Free tool
Income Tax Calculator
Pick your country to estimate your federal income tax, effective and marginal rate, bracket breakdown, and after-tax income.
2025 tax year
United States
Estimate your United States federal income tax and see your bracket-by-bracket breakdown.
Calculate my United States tax →2025 tax year
Canada
Estimate your Canada federal income tax and see your bracket-by-bracket breakdown.
Calculate my Canada tax →2025/26 tax year
United Kingdom
Estimate your United Kingdom federal income tax and see your bracket-by-bracket breakdown.
Calculate my United Kingdom tax →Frequently asked questions
- What does "federal-only" mean?
- This calculator estimates national/federal income tax only. It doesn't include US state tax, Canadian provincial or territorial tax, or UK National Insurance — each of those has its own separate rates and rules. Pick your country below to see the full estimate for that system.
- What's the difference between marginal and effective tax rate?
- Your marginal rate is the rate applied to your next dollar of income — the top bracket you reach. Your effective rate is your total tax owed divided by your total income — the average rate you actually pay across every bracket. Effective rate is almost always lower than marginal rate.
- Is this tax advice?
- No. This tool produces an estimate for planning purposes only, based on published tax-year brackets. It doesn't account for credits, itemized deductions, self-employment tax, or your specific circumstances. Talk to a licensed tax professional before making financial decisions.
Estimates only, not tax advice. Covers federal/national income tax for the tax year shown — it does not include state, provincial, or territorial tax, itemized deductions, tax credits beyond what's noted above, or self-employment tax. National Insurance/payroll tax remains out of scope everywhere. Consult a licensed tax professional for guidance specific to your situation.