Federal Income Tax Calculator

FEDERAL TAX ยท TAX YEAR 2026

2026 Tax bracket headroom calculator

Find how much more taxable ordinary income fits before your next federal bracket. For tax year 2026, generally filed in 2027.

Your taxable income

Enter nonnegative amounts. Blank numeric fields mean zero. Commas and dollar signs are accepted for money.

Your estimate

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How this calculator works

Subtract taxable income from the upper boundary of the highest occupied bracket (the first bracket if there is no taxable income). At an exact boundary, the current bracket is filled and remaining headroom is zero; the next taxable dollar enters the following bracket. A higher rate applies only to the income in that higher bracket.

Worked example

A single filer with $50,000 of taxable income has $400 remaining before the 22% bracket starts above $50,400. Current federal income tax is $5,752.

What this estimate includes

Capital gains, credits, payroll taxes and state taxes are excluded. The highest bracket has no upper ceiling.

2026 rules and sources

Rates, thresholds, standard deductions and child-credit amounts use IRS Revenue Procedure 2025-32. See the 2026 federal bracket tables for all filing statuses. Read the full assumptions and sources.