Your marginal rate is what you pay on your next dollar. Your effective rate is your real average tax burden. See both, and exactly how your income fills each bracket.
| Rate | Bracket Range | Taxed at This Rate | Tax Owed |
|---|
The United States uses a progressive federal income tax system, which means your income is taxed in layers, not all at one flat rate. This tool takes your gross income, subtracts the 2026 standard deduction for your filing status to estimate your taxable income, and then applies the current IRS brackets to that taxable income one layer at a time. The visual above shows exactly how much of your income falls into each bracket, which is the clearest way to see why your marginal rate and your effective rate are two very different numbers.
Your marginal tax rate is the rate applied to your last, highest dollar of taxable income, the rate that would apply to one additional dollar you earned. Your effective tax rate is your total tax bill divided by your income, essentially a blended average across every bracket your income passed through. Because only the income inside each bracket is taxed at that bracket's rate, your effective rate is always lower than your marginal rate for anyone with income above the lowest bracket.
This is one of the most common misunderstandings in personal finance. Moving into a higher bracket only means the additional income above that threshold is taxed at the higher rate. Every dollar you already earned below that threshold keeps being taxed at the lower rates it always was. A raise can never reduce your total after tax income under this system, because you never lose money by earning more.
These are the current brackets from IRS Revenue Procedure 2025-32, effective for the 2026 tax year, applying to taxable income after the standard deduction. The standard deduction for 2026 is $16,100 for single filers, $32,200 for married filing jointly, and $24,150 for head of household.
Understanding the difference between marginal and effective tax rates, and how progressive tax brackets work, is foundational content on the CFP exam and appears throughout tax planning questions on the Series 65 and Series 66. It also underlies the tax equivalent yield calculations tested on the SIE exam and Series 7.
No, this tool covers federal income tax only. State income tax rates and bracket structures vary widely, and some states have no income tax at all. Add your state's tax separately for a full picture of your total tax burden.
No. This tool calculates tax owed before credits, such as the child tax credit or earned income tax credit. Credits reduce your tax bill dollar for dollar after this calculation and would lower both your total tax and your effective rate.
The vast majority of filers take the standard deduction rather than itemizing, so this gives a realistic estimate of taxable income from gross income. If you itemize deductions and your itemized total exceeds the standard deduction, your actual taxable income, and therefore your tax, would be lower than this estimate.
No. This tool applies the ordinary income tax brackets, which cover wages and most other income. Long term capital gains and qualified dividends are taxed under a separate set of brackets with different, generally lower rates.
Marginal and effective tax rates show up directly on CFP and securities licensing exams. Practice for free.
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