Income Tax Calculator - Free US and Canada Federal Tax Estimates

Features

• United States and Canada: switch countries with one click on the flag.
• Tax years 2016 to 2026 for both countries, including the 2025 and 2026 brackets.
• Filing status for US federal tax: Single, Married filing jointly, Married filing separately, Head of household and Qualifying surviving spouse.
• Shows the complete federal bracket table for the selected year and highlights the bracket your income falls into.
• Calculates the estimated federal tax, average tax rate and marginal tax bracket.
• For Canada, also shows the basic personal amount credit.

How to estimate your federal income tax on Windows

1. Download and install Income Tax Calculator. It is free.
2. Choose the country: click the US or the Canadian flag at the top right of the window.
3. Choose the Tax Year (2016 to 2026) and, for the US, your Filing Status.
4. Enter your Taxable Income. The results update as you type: estimated federal tax, average tax rate and marginal tax bracket, with your bracket highlighted in the table. For Canada the basic personal amount credit is shown too.

When you need a federal tax bracket calculator

• Planning a raise or a bonus: see how much more federal tax the extra income adds at your marginal rate.
• Comparing filing statuses, such as married filing jointly and married filing separately, for the same income.
• Comparing tax years: see how the brackets changed from one year to the next.
• Moving between the US and Canada: compare federal tax on the same income in both countries.
• Understanding your tax bracket: the full bracket table shows which rate applies to each part of your income.

Tax brackets explained

A tax bracket is the rate applied to the highest portion of your income. For example, with taxable income of $100,000 in 2025 a single US filer is in the 22% bracket, so another $100 of income adds $22 of federal tax — but the average rate on the whole income is only about 16.9%, because the lower portions are taxed at 10% and 12%. Seeing both numbers helps you understand how a raise, a bonus or an extra deduction changes what you owe.

The program estimates federal income tax on taxable income only. It does not include state or provincial tax, payroll taxes or credits other than those shown, and is not a substitute for tax preparation software or professional advice.

Frequently asked questions