Marginal Tax Rate Calculator
Find which federal tax bracket your next dollar of income falls into.
This is the rate on your next dollar earned, not the rate on all your income (see Effective Tax Rate Calculator for that).
About the Marginal Tax Rate Calculator
The Marginal Tax Rate Calculator gives you an instant answer from just a few inputs — filing status, taxable income. It runs entirely in your browser, so the numbers you enter stay private and never touch a server, and the result recalculates the moment you change a value. It's free to use with no sign-up, no limits, and nothing to install.
Worth Knowing
Your marginal rate is the tax on your next dollar of income, and it's the number that actually matters for decisions — whether a raise, a bonus, or a pre-tax retirement contribution is worth it. A common myth is that crossing into a higher bracket taxes all your income at the new rate; in reality only the income within each bracket is taxed at that bracket's rate. Knowing your marginal rate tells you the real value of a deduction.
How to Use
- Enter Filing status into the first field of the Marginal Tax Rate Calculator.
- Fill in the rest: Taxable income.
- Your result appears instantly as you type — there's no submit button or page reload.
- This is the rate on your next dollar earned, not the rate on all your income (see Effective Tax Rate Calculator for that).