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Tax Calculator

Use this tax calculator to estimate your 2025 federal income tax in seconds. Pick your filing status, enter your gross income and any pre-tax deductions, and see your taxable income, tax owed, tax bracket, effective rate and estimated monthly take-home pay.

Free · No signup · 2025 IRS figures · Mobile-friendly

How the tax calculator works

Start with gross income: your total yearly pay before anything is taken out.

Subtract pre-tax deductions: money you put into a traditional 401(k), IRA or HSA is not taxed now.

Subtract the 2025 standard deduction: $15,750 for single filers or $31,500 for married couples filing jointly. What is left is your taxable income.

Apply the 2025 federal brackets: each slice of taxable income is taxed at its own rate, from 10% up to 37%. Adding the slices gives your federal income tax.

Estimate take-home pay: the calculator also subtracts FICA (6.2% Social Security up to $176,100 and 1.45% Medicare) to give a monthly figure before state tax.

Related tools and guides

Tax deductions guide

Learn when itemizing beats the standard deduction in our tax deductions guide.

Take-home pay

See your paycheck per pay period with the Take-Home Pay Calculator.

Salary conversions

Convert annual, monthly and hourly pay with the Salary Calculator.

Formula & methodology

Taxable income = Gross income − Pre-tax deductions − Standard deduction
Marginal rate
The rate on your last dollar of taxable income (your bracket)
Effective rate
Federal income tax ÷ gross income

Only the income inside each bracket is taxed at that bracket's rate — moving into a higher bracket never makes your whole income taxed at the higher rate.

Tax credits, itemized deductions and state or local taxes are not included.

Illustrative example

$80,000 single filer, line by line

Gross income: $80,000. Pre-tax deductions: $0. Standard deduction: −$15,750. Taxable income: $64,250.

10% on the first $11,925 = $1,192.50.

12% on $11,926 to $48,475 ($36,550) = $4,386.00.

22% on $48,476 to $64,250 ($15,775) = $3,470.50.

Total federal income tax: $9,049. Marginal bracket: 22%. Effective rate: $9,049 ÷ $80,000 = 11.31%.

After $6,120 of FICA, estimated take-home before state tax is about $64,831 a year, or $5,403 a month.

Hypothetical figures for illustration only.

Tax calculator FAQ

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