Finance calculator

Income Tax Calculator

Free Income Tax calculator. Estimate taxable income, total tax, and effective tax rate using simplified federal brackets. Use our free online calculator.

Last updated August 24, 2026

Finance calculator

Income Tax Calculator

Estimate taxable income, total tax, and effective tax rate using simplified federal brackets.

How this calculator works

This calculator estimates simplified federal tax based on taxable income, deductions, and filing status. Enter gross income, deductions, and select a filing status to see the estimated tax and effective tax rate. Use it for tax planning, comparing filing options, and understanding how tax brackets affect take-home pay. The key inputs are gross income, deductions, and filing status. The output is the estimated tax, taxable income, and effective tax rate. Real-world applications include tax planning, paycheck estimation, financial planning, and bracket education. The calculator applies simplified federal tax brackets to taxable income after deductions. It is not a full tax return and does not include state tax, credits, dependents, or special deductions. Official tax software or a tax professional should be used for filing.

Methodology

The calculator applies simplified federal tax brackets to taxable income after deductions. It is not a full tax return.

Examples

  • Estimate taxable income after deductions.
  • Compare simplified federal tax across filing statuses.
  • Estimate effective tax rate from gross income.

Common questions

Is this a tax filing tool?

No. It is a simplified estimate for planning and education. Official tax software or a tax professional should be used for filing.

Why might the estimate differ from my tax return?

Credits, state tax, withholdings, dependents, special deductions, and bracket updates can change the result.

What does effective tax rate mean?

Effective tax rate is estimated tax divided by gross income. It shows the average rate, not the top bracket rate.