Federal Income Tax Calculator
Updated 2026An income tax calculator helps you estimate your federal tax bill based on your income and filing status. Understand your effective and marginal tax rates and plan ahead for tax season.
How to Use This Calculator
Enter your annual gross income and select your filing status. The calculator applies the 2026 standard deduction and progressive tax brackets to compute your taxable income, total federal tax, effective tax rate, and marginal tax rate.
How It's Calculated
Taxable income = gross income − standard deduction (based on filing status). Tax is computed using progressive brackets: each portion of income is taxed at its corresponding rate. The effective tax rate is total tax divided by gross income. The marginal rate is the bracket your last dollar of income falls into.
Frequently Asked Questions
Related Calculators
Paycheck Calculator
Calculate your take-home pay after deductions
Salary Calculator
Convert between hourly and annual salary
Hourly to Salary Calculator
Convert hourly wage to annual salary
Mortgage Calculator
Estimate your monthly mortgage payment with PITI
Mortgage Refinance Calculator
Compare your current vs. new loan payments
Auto Loan Calculator
Calculate monthly car payments including trade-in