Free USA Tax Calculator 2026
Estimate your federal and state income taxes, FICA deductions, effective tax rate, and take-home pay instantly with this free online tax calculator.
* Calculations use 2024 Federal brackets. FICA includes Social Security and Medicare. State tax is calculated as a flat percentage of gross income.
What Is a Tax Calculator?
A tax calculator helps estimate how much federal and state income tax you may owe based on your salary, filing status, and location.
This tool estimates federal income taxes, FICA deductions (Social Security and Medicare), and state income taxes to help you understand your projected take-home pay.
Whether you are comparing job offers, planning relocation, budgeting monthly expenses, or estimating paycheck deductions, understanding your after-tax income is essential.
2026 FICA Tax Rates
How to Calculate Taxes in 2026
1. Enter Income
Add your annual salary or estimated yearly income.
2. Select Filing Status
Choose single, married, or head of household.
3. Estimate Taxes
Calculate federal, FICA, and state taxes.
4. Review Take-Home Pay
See estimated net income after deductions.
Example Tax Calculation
| Item | Amount |
|---|---|
| Annual Salary | $100,000 |
| Estimated Federal Tax | -$13,800 |
| FICA Taxes | -$7,650 |
| Estimated State Tax | -$4,000 |
| Estimated Take-Home Pay | ~$74,550 |
Understanding Tax Brackets
The United States uses a progressive tax system. This means different portions of your income are taxed at different rates instead of one flat percentage.
Moving into a higher tax bracket does not mean all your income is taxed at that higher rate. Only the income within that bracket is taxed at the corresponding percentage.
Your effective tax rate is usually lower than your highest marginal tax bracket because lower portions of your income are taxed at reduced rates.
Federal vs State Taxes
Federal income tax rules apply nationwide, while state tax rates vary significantly depending on where you live.
Some states, such as Texas and Florida, do not charge state income tax. Other states may apply progressive tax rates that increase with income.
Comparing after-tax income between states can help evaluate relocation opportunities and salary offers.
Pre-Tax Deductions
Contributions to retirement accounts such as traditional 401(k) plans may reduce taxable income and lower your current tax bill.
Health Savings Accounts (HSAs) and certain employee benefits can also reduce taxable income depending on eligibility rules.
Using a tax estimator can help visualize how deductions affect your take-home pay and effective tax rate.
Frequently Asked Questions
What is the standard deduction?
The standard deduction reduces taxable income before taxes are calculated. The IRS adjusts deduction amounts periodically for inflation.
What is FICA tax?
FICA taxes fund Social Security and Medicare programs and are automatically deducted from employee paychecks.
Why is my take-home pay lower than expected?
Taxes, retirement contributions, insurance premiums, and other payroll deductions all reduce net take-home income.
Is this calculator accurate?
This calculator provides estimates for informational and budgeting purposes only and should not replace professional tax advice.
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