Last updated: March 2026
What Is an Income Tax Calculator?
An income tax calculator is a tool that estimates how much federal and state income tax you owe based on your salary, filing status, deductions, and state of residence. It breaks down your tax liability by bracket so you can see exactly how the progressive tax system applies to your income.
The average American pays an effective federal tax rate of about 14.6%, well below the top marginal rate of 37%. That is because the progressive system taxes only the portion of income within each bracket at the corresponding rate, not your entire income at the highest rate you reach.
This calculator uses the 2026 federal tax brackets, all 50 state income tax rates, FICA (Social Security and Medicare), pre-tax deductions, and the child tax credit to give you a comprehensive picture of your tax burden and take-home pay.
How to Use This Income Tax Calculator
Step 1: Enter your gross income. This is your total annual salary or wages before any taxes or deductions. If you are paid hourly, multiply your hourly rate by the number of hours you work per year (typically 2,080 for full-time).
Step 2: Select your filing status. Your filing status determines your standard deduction amount and which tax bracket thresholds apply. Married filing jointly has the widest brackets and largest standard deduction.
Step 3: Choose your state. State income taxes vary from 0% in nine states to over 9% in California. The calculator applies your state's approximate effective rate to estimate state-level taxes.
Step 4: Add deductions and credits. Enter any pre-tax deductions (401k, HSA, health insurance) and the number of dependents for the child tax credit. These reduce your taxable income and total tax bill.
Step 5: Review your results. See your take-home pay by pay period, a bracket-by-bracket breakdown, effective and marginal rates, and a visual chart showing where every dollar goes.
2026 Federal Tax Brackets
The 2026 federal income tax system has seven brackets ranging from 10% to 37%. The bracket thresholds are adjusted annually for inflation. Here are the single filer brackets for 2026:
| Rate | Single | Married Filing Jointly |
|---|---|---|
| 10% | $0 – $11,600 | $0 – $23,200 |
| 12% | $11,601 – $47,150 | $23,201 – $94,300 |
| 22% | $47,151 – $100,525 | $94,301 – $201,050 |
| 24% | $100,526 – $191,950 | $201,051 – $383,900 |
| 32% | $191,951 – $243,725 | $383,901 – $487,450 |
| 35% | $243,726 – $609,350 | $487,451 – $731,200 |
| 37% | $609,351+ | $731,201+ |
The highest marginal bracket of 37% applies only to income over $609,350 for single filers. Even high earners pay lower rates on their first dollars of income, which is why the effective rate is always lower than the marginal rate.
Key Features
Real-time calculations. Every input updates results instantly. There is no calculate button to press — adjust your income, filing status, or deductions and watch the numbers change immediately.
All 50 states plus DC. The calculator includes income tax rates for every US state and the District of Columbia, with no-income-tax states clearly marked. Switch states to compare how location affects your take-home pay.
Complete bracket breakdown. See exactly how much income falls into each federal bracket and how much tax each bracket generates. The visual stacked bar makes the progressive tax system intuitive.
Pre-tax deductions and credits. Account for 401(k) contributions, HSA savings, health insurance premiums, and the child tax credit to get a more accurate picture of your actual tax liability.
Multiple pay period views. See your take-home pay as an annual, monthly, bi-weekly, or weekly amount — matching however you actually receive your paycheck.
100% private. All calculations happen in your browser. Your financial data is never sent to any server or stored anywhere.
Frequently Asked Questions
How are federal income tax brackets calculated?
Federal income tax uses a progressive system where your income is divided into brackets, each taxed at a different rate. For 2026, a single filer pays 10% on the first $11,600, then 12% on income from $11,601 to $47,150, and so on up to 37% on income over $609,350. You only pay the higher rate on income within that bracket, not on all your income.
What is the difference between marginal and effective tax rate?
Your marginal tax rate is the rate on your next dollar of income — it's the highest bracket your income reaches. Your effective tax rate is the average rate across all your income (total tax divided by total income). For example, a single filer earning $80,000 has a 22% marginal rate but only about 14% effective rate because lower portions of income are taxed at 10% and 12%.
Which states have no income tax?
Nine states have no income tax on wages: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. New Hampshire and Tennessee previously taxed investment income but have phased those out. Living in a no-income-tax state can significantly increase your take-home pay.
How does the standard deduction work?
The standard deduction is a flat amount subtracted from your adjusted gross income before tax is calculated. For 2026, it's $15,000 for single filers, $30,000 for married filing jointly, and $22,500 for head of household. You can choose the standard deduction or itemize deductions (mortgage interest, state taxes, charitable giving) — whichever is larger reduces your tax more.
What is FICA tax and how much is it?
FICA (Federal Insurance Contributions Act) tax funds Social Security and Medicare. In 2026, you pay 6.2% for Social Security on the first $168,600 of earnings and 1.45% for Medicare on all earnings. If you earn over $200,000 (single) or $250,000 (married filing jointly), you pay an additional 0.9% Medicare surtax on income above those thresholds.
How do pre-tax deductions like 401(k) reduce my taxes?
Pre-tax deductions like 401(k) contributions, HSA contributions, and employer health insurance premiums are subtracted from your gross income before federal and state taxes are calculated. For example, if you earn $80,000 and contribute $6,000 to a 401(k), you're only taxed on $74,000. This can save you thousands in taxes annually while building retirement savings.