Updated · Built and checked by the PlinzoTools team, formulas tested against published sources
Estimate federal income tax owed, plus your effective and marginal tax rates, from gross income.
$8770.00
US federal income tax is progressive -- different portions of your income are taxed at different rates as they cross each bracket threshold, not your entire income at one flat rate. This calculator applies your standard deduction, then runs your remaining taxable income through the current bracket structure, showing the actual tax owed along with two commonly confused rates: your effective rate (total tax divided by total income) and your marginal rate (the rate applied to your last dollar earned). This tool also covers the identical "Effective Tax Rate Calculator" search intent, since effective rate is simply one of its natural outputs.
Enter your gross annual income and filing status (single or married filing jointly).
Taxable Income = Gross Income − Standard Deduction
Tax Owed = progressive bracket calculation on Taxable Income
Effective Rate = Tax Owed ÷ Gross Income
Marginal Rate = the rate of the highest bracket your taxable income reaches
Notice the effective rate (~12.6%) is meaningfully lower than the marginal rate (22%) -- a common point of confusion, since only the income above the 22% bracket's threshold is actually taxed at 22%, not the whole $65,400.
Because tax brackets are progressive, only the income within a given bracket is taxed at that bracket's rate -- lower portions of income are still taxed at the lower rates below it. Your marginal rate tells you what an additional dollar of income would be taxed at; your effective rate tells you what share of your total income actually went to federal tax.
Use your marginal rate to evaluate the after-tax value of an additional deduction, retirement contribution, or bonus. Use your effective rate to understand your real overall tax burden. To check whether your withholding already covers this bill, see the Tax Refund Estimator.
To see why the effective rate sits below the marginal rate, imagine a hypothetical system with only two brackets: 10% on the first $10,000 of taxable income and 20% above that. Someone with $30,000 taxable owes $1,000 on the first slice and $4,000 on the remaining $20,000, for a total of $5,000. Their effective rate is about 16.7%, while their marginal rate is 20%. Real federal brackets work the same way with more layers, which is the mechanism behind the calculator's result.
The calculator uses a standard deduction and bracket structure and reports federal income tax only. Several things can change your actual return:
Tax brackets and the standard deduction are adjusted periodically and can be changed by legislation, so treat any output as an estimate. Confirm current figures on IRS.gov, and consider a tax professional or tax software when your situation involves business income, investments, or multiple states.
Because only income within each bracket is taxed at that bracket's rate -- your marginal (top) bracket rate never applies to your entire income, only to the portion within that specific bracket.
No -- this calculates federal tax only. State income tax varies enormously (some states have none at all), so add your state's estimate separately, for example via the Paycheck Calculator, which includes a state tax rate field.
This uses 2026 US federal figures (IRS Rev. Proc. 2025-32) as a reasonable estimate baseline -- both change annually, so treat this as a planning estimate, not official tax advice.
No -- this calculates gross tax liability from taxable income only, before any credits (like the Child Tax Credit) are applied, which would further reduce the final amount owed.
No. Only the portion of income above a bracket threshold is taxed at the higher rate, so a raise never reduces your take-home pay because of the brackets alone.
Choose the status you expect to use on your return. This calculator offers single and married filing jointly, so other statuses, such as head of household, will need a different tool or a professional.
It is an estimate. Credits, itemized deductions, additional income, and adjustments can move your real result up or down.
Reference: Internal Revenue Service