US federal income tax calculator 2026

Estimate federal tax on ordinary taxable income using the 2026 rate schedules.

Estimated tax before credits

Ordinary income tax
Marginal rate on entered income

What this estimate includes

The calculator applies the IRS 2026 ordinary-income tax rate schedules to the taxable income you enter. It does not calculate deductions, credits, withholding, state or local taxes, payroll taxes, self-employment tax, alternative minimum tax, capital gains or other special tax rules.

For income below $100,000, the IRS tax tables used for a return may give a different amount. This is an estimate before credits, not a return or the amount you owe.

IRS: Revenue Procedure 2025-32, section 4.01, 2026 tax rate tables