Federal Tax · 2025
Marginal vs. Effective Tax Rate Explainer
Most tax tools give you a number. This one shows why that number is what it is. Enter your income to see your marginal rate, effective rate, how each bracket contributes to your total tax, and exactly what you keep from a raise or bonus.
Your information
Wages, salary, or other ordinary income
Raise or bonus (optional)
See exactly what you keep from extra income
Informational only — not professional tax advice.
Enter your income to see how your marginal rate and effective rate differ — and why moving into a higher bracket doesn't mean paying that rate on everything.
Methodology
How the calculation works
The calculator applies the 2025 standard deduction to your gross income to arrive at taxable income. It then applies each bracket's rate only to the income that falls within that bracket's range — the same progressive logic the IRS uses. Total federal income tax is the sum of taxes across all brackets reached. The effective rate is total tax ÷ gross income. The marginal rate is the rate of the highest bracket reached.
What the raise scenario calculates
The raise scenario runs the full tax calculation twice — once at your current income and once at income plus raise — and reports the difference. If the raise spans a bracket boundary, it breaks the raise into two slices: the portion taxed at your current marginal rate and the portion taxed at the next rate. The rate shown ("rate on this raise") is the effective rate on the raise amount itself, not your overall marginal rate.
Scope and limitations
This tool computes federal income tax only. It does not include Social Security or Medicare taxes (FICA), state income taxes, capital gains rates, the Additional Medicare Tax on high incomes, or any credits or deductions beyond the standard deduction. For a more complete picture, see the Federal Income Tax Calculator.
Tax year scope
All bracket thresholds and standard deduction amounts are from IRS Rev. Proc. 2024-61 (November 2024), which sets 2025 inflation-adjusted parameters. These figures apply to tax year 2025 returns only.
Last reviewed: January 2025. Rates reviewed annually after IRS publishes the next Rev. Proc. (typically November).
Frequently asked questions
What is the difference between my marginal and effective tax rate?
Your marginal rate is the rate that applies to your next dollar of income — the rate of the highest bracket you reach. Your effective rate is total tax divided by total gross income, expressed as a percentage. Because the U.S. uses a progressive system where each bracket's rate only applies to the income within that bracket, your effective rate is always lower than your marginal rate unless all your income falls in a single bracket.
If a raise pushes me into a higher bracket, will I take home less money overall?
No — this is a common fear but a mathematical impossibility in a progressive system. Moving into a higher bracket only means the income above the new threshold is taxed at the higher rate. Every dollar you earned before the threshold is still taxed at the same lower rates. A raise can never make your after-tax income decrease. The "raise scenario" section of this tool shows exactly what you keep from any raise amount.
What does it mean to be "in the 22% bracket" for 2025?
For a single filer in 2025, the 22% bracket covers taxable income between $48,475 and $103,350. Being 'in' the 22% bracket means your taxable income reaches into that range — but only the dollars above $48,475 are taxed at 22%. The first $11,925 is taxed at 10%, the next $36,550 at 12%, and only income above $48,475 is taxed at 22%. Most people in the 22% bracket have an effective rate between 12% and 17%.
Why do I always owe less than my marginal rate times my income?
Two reasons. First, the standard deduction reduces your taxable income before any bracket applies — for 2025, that's $15,000 for single filers. Second, even after the deduction, lower brackets fill up before higher ones kick in. The 10% bracket covers the first $11,925 of taxable income, 12% covers the next $36,550, and so on. The math in the breakdown table above shows exactly how each bracket contributes to your total tax.
Related tools
Enter your income and filing status to see exactly how the 2025 U.S. tax brackets apply — marginal rate, effective rate, and every dollar of tax shown bracket by bracket.
Open tool →Tax Bracket ExplorerSee all seven 2025 federal tax brackets in one table — where each bracket starts, ends, how wide it is, and the total tax owed at each ceiling.
Open tool →State Income Tax CalculatorState income tax calculators for all 50 states and DC — select your state to see its bracket structure and compute your liability, with each rate cited to the state revenue department.
Open tool →