Our comprehensive tax calculator helps you estimate your federal income tax based on current tax brackets. Enter your gross income, select your filing status, choose standard or itemized deductions, and see your estimated tax liability, effective tax rate, and take-home pay. Perfect for tax planning and understanding your tax situation.
Standard: $14,600 (Single), $29,200 (Married Joint)
Mortgage interest, charitable donations, medical expenses, etc.
Input your annual gross income (before any taxes or deductions).
Choose your tax filing status (single, married, etc.).
Choose standard deduction or enter itemized deductions.
View federal tax, effective rate, and net take-home pay.
US federal income tax uses progressive brackets. You pay different rates on different portions of your income. For example, the first $11,600 (single) is taxed at 10%, the next portion at 12%, and so on.
Tax = Sum of (Income in each bracket × Bracket rate)
Standard deduction for 2024: $14,600 (single), $29,200 (married filing jointly)
Itemize deductions only if they exceed the standard deduction
Tax brackets are marginal - only income above each threshold is taxed at that rate
Consider contributing to 401(k) or IRA to reduce taxable income
Self-employed individuals pay both employer and employee portions of FICA (15.3%)
Quarterly estimated tax payments may be required if you owe $1,000+ at filing
State taxes vary significantly - some states have no income tax
Our free tax calculator estimates your federal income tax using current tax brackets. Enter your gross income, filing status, and deductions to see your tax liability, effective tax rate, and take-home pay. Includes optional state tax and FICA calculations.
Calculate your federal income tax using 2024 tax brackets. Our calculator applies progressive tax rates correctly - you pay 10% on the first portion of income, 12% on the next, and so on.
See exactly how much goes to federal taxes.
Find out which tax bracket you're in and understand marginal vs effective tax rates.
Your marginal rate is the rate on your last dollar; your effective rate is your total tax divided by total income - usually much lower than your bracket suggests.
Calculate your take-home pay after:
See your annual net income and monthly take-home amount. Perfect for budgeting and financial planning.
Compare standard deduction vs itemized deductions. Enter your itemized deductions to see if they exceed the standard deduction.
Factor in pre-tax contributions like 401(k) and HSA to reduce your taxable income.
US federal income tax is progressive: your income is taxed in slices, each at the rate for its bracket, not all at your top rate.
According to the IRS, for 2024 a single filer pays 10% on the first ~$11,600, 12% on the next slice, and so on up to 37%.
First subtract your deduction to get taxable income, then apply each bracket in turn.
This calculator applies the current IRS brackets for your filing status so the result reflects the true tiered calculation, not a flat rate.
Your marginal rate is the tax on your next dollar of income (your top bracket); your effective rate is total tax divided by total income.
They differ sharply because of the bracket system: a single filer earning $100,000 might be in the 22% marginal bracket but pay an effective rate closer to 15%.
As the Tax Foundation notes, confusing the two leads people to overestimate their tax burden.
Use marginal rate for decisions about extra income; use effective rate to understand your overall burden.
Every filer reduces taxable income by either the standard deduction or the sum of itemized deductions, whichever is larger.
The IRS standard deduction is substantial after the 2017 Tax Cuts and Jobs Act — around $14,600 single and $29,200 married filing jointly for 2024 — so most taxpayers no longer itemize.
Itemizing pays off mainly when these together exceed the standard amount:
This calculator lets you compare both paths.
Beyond income tax, employees pay FICA payroll taxes that fund Social Security and Medicare.
Per the Social Security Administration, the employee share is 6.2% for Social Security (up to an annual wage cap) plus 1.45% for Medicare, with an extra 0.9% Medicare surtax on high earners.
Employers match the first two. Self-employed workers pay both halves as self-employment tax.
FICA is separate from federal income tax, which is why your total withholding is higher than the income-tax brackets alone suggest.
Federal income tax is only part of the picture.
Most states levy their own income tax, ranging from flat rates to progressive brackets, while a handful — including Florida, Texas, and Washington — have no state income tax at all.
According to the Tax Foundation, top state rates exceed 10% in California and New York.
Your total tax burden combines federal, FICA, and state, so two identical salaries can yield very different take-home pay depending on where you live.
One of the most effective ways to cut income tax is to reduce taxable income before it is taxed.
Contributions to these accounts are made pre-tax, lowering the income the IRS taxes this year:
For 2024 the 401(k) employee limit is $23,000 and the HSA family limit is $8,300.
A worker in the 24% bracket who contributes $23,000 to a 401(k) defers roughly $5,500 in current federal tax while building retirement savings.
Frequent errors include:
Others miss above-the-line deductions like student-loan interest or HSA contributions, or overlook state tax entirely.
The IRS also flags math errors and mismatched W-2 figures as top reasons returns are delayed.
Estimate throughout the year, verify every form against the IRS totals, and choose the deduction path that yields the lower tax.
Data sourced from trusted institutions
All formulas verified against official standards.