Income Tax Calculator — Free Online US Federal Tax Estimator | Trencada

Introduction

Our free US income tax calculator gives you a fast, clear estimate of your 2026 federal income tax, FICA payroll taxes and take-home pay — with no signup and no cost. It applies the official IRS 2026 brackets (IRS Rev. Proc. 2025-32) and the standard deduction for single, married filing jointly, married filing separately, and head of household filers. Enter your gross income, optionally add pre-tax deductions like 401(k) contributions, and instantly see your federal tax, marginal and effective rates, and your take-home pay. This is a federal-only estimate for the 2026 tax year and is not tax advice.

How to Use

1. Choose your filing status and enter your gross annual income.
2. Optionally add pre-tax deductions such as 401(k) or HSA contributions.
3. Click Estimate my tax to see your federal income tax, FICA, take-home pay and a per-bracket tax breakdown.
4. Use Reset to start a fresh estimate.

Key Features

• 2026 tax year — official IRS brackets, rates (10%–37%) and standard deductions.
• All four filing statuses — single, married filing jointly, married filing separately, head of household.
• Per-bracket breakdown — see exactly how much tax each bracket contributes, plus marginal and effective rates.
• FICA included — Social Security and Medicare payroll taxes, including the wage base and additional Medicare tax.
• Take-home pay — annual and monthly estimates after federal tax and FICA.
• 100% client-side — your income data never leaves your browser; nothing is uploaded, stored or tracked.

Why Choose Trencada

Trencada’s calculators are fast, accurate and distraction-free: no accounts, no paywalls, no data collection. This federal income tax estimator uses the official 2026 IRS figures rather than rough guesses, making it ideal for salary planning, job-offer comparisons and quick what-if checks throughout the year. Everything happens instantly in your browser, so your numbers are ready in seconds.

Frequently Asked Questions

1. Is this a federal-only estimate?
Yes. This calculator estimates federal income tax plus FICA (Social Security and Medicare) for tax year 2026. State and local taxes, credits and itemized deductions are not included.

2. Which IRS figures does it use?
The 2026 brackets and standard deductions from IRS Rev. Proc. 2025-32, including the 10%, 12%, 22%, 24%, 32%, 35% and 37% brackets.

3. Is this tax advice?
No. This tool provides a simplified estimate for planning purposes only and is not tax advice. Consult a qualified tax professional for your specific situation.

4. Is my income data private?
Yes. Everything runs in your browser with JavaScript — nothing is sent to a server, stored or tracked.