Estimate your income tax using current tax brackets and deduction values.. Free online, browser-based tool with instant results and no signup.
Last updated: February 23, 2026
The United States uses a progressive federal income tax system, meaning your income is taxed at increasing rates as it moves through defined brackets. A common misconception is that moving into a higher bracket means all of your income is taxed at that higher rate — this is not the case.
Your marginal tax rate is the rate applied to your last dollar of income. For example, if you earn $100,000 as a single filer in 2026, your marginal rate is 22%. However, not all $100,000 is taxed at 22%. The first $12,400 is taxed at 10%, the next portion at 12%, and only the amount above $50,400 (after deductions) is taxed at 22%.
Your effective tax rate is what you actually pay as a percentage of your total income. It's always lower than your marginal rate because only a portion of your income is taxed at the highest bracket.
The standard deduction reduces your taxable income before brackets are applied. If your itemized deductions (mortgage interest, state taxes, charitable contributions, etc.) exceed the standard deduction, you may benefit from itemizing instead.
In addition to federal taxes, most states levy their own income tax. Rates vary significantly — states like California and Oregon have rates above 9%, while Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming have no state income tax on earned wages. This calculator uses simplified effective state rates for a quick estimate.
Estimate your income tax using current tax brackets and deduction values.. Free online, browser-based tool with instant results and no signup. This tool runs in-browser for fast results without account setup.
Yes. US Income Tax Estimator is free to use on ConvertCrunch.
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