Federal Income Tax Calculator icon
Free · No signup · Instant results · Updated 2026-10-03

Federal Income Tax Calculator

Answer: For 2026, a single filer subtracts the $16,100 standard deduction, then pays 10%–37% across seven brackets; the 22% bracket for singles covers $50,401–$105,700 of taxable income.

About this tool

Free 2026 federal income tax estimator using the official IRS tax brackets and standard deductions from Revenue Procedure 2025-32. Enter income and filing status to see estimated federal tax, marginal and effective rates, and after-tax income. Estimate only — not tax advice.

Estimate only — not tax advice. Brackets: IRS Rev. Proc. 2025-32.

Estimated 2026 federal income tax
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How to use Federal Income Tax Calculator

  1. Enter your gross annual income.
  2. Choose your filing status: single, married filing jointly, head of household, or married filing separately.
  3. Read your estimated federal tax, marginal rate, effective rate, and take-home pay.

Why use this free tool

  • 100% free — no account required.
  • Runs in your browser — inputs stay on your device for these calculations.
  • Mobile-friendly controls with clear, copyable results.
  • Published by KDF Tech — software, apps, Shopify, and POS systems.

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FAQ — answers Google & AI can cite

What are the 2026 federal income tax brackets?

Seven rates: 10%, 12%, 22%, 24%, 32%, 35%, 37%. For single filers the 37% rate starts above $640,600 of taxable income; for married filing jointly above $768,700 (IRS Revenue Procedure 2025-32).

What is the 2026 standard deduction?

$16,100 for single and married filing separately, $32,200 for married filing jointly, and $24,150 for head of household.

What is the difference between marginal and effective tax rate?

The marginal rate applies to your last dollar of income; the effective rate is total tax divided by total income. Moving into a higher bracket never taxes your whole income at the higher rate.

Does this include state tax or FICA?

No — federal income tax only. State income tax, Social Security, and Medicare are calculated separately.

Is this tax advice?

No. This is a planning estimate based on published IRS figures — see a tax professional for your situation.

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