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🧾 US Federal Income Tax Calculator
Estimate your US federal income tax based on 2024 brackets. Choose filing status, enter income and adjustments, see marginal bracket and effective rate. State tax and FICA not included.
Examples
Income $80k, single, $14,600 standard deductionTaxable $65,400 · Tax ~$9,500 · Effective rate ~12%Income $200k, MFJ, $29,200 standard deductionTaxable $170,800 · Tax ~$26,300 · Effective rate ~13%Frequently asked questions
What is the difference between marginal and effective rate?
Marginal rate is the tax on your last dollar (the highest bracket you reach). Effective rate is total tax / total income (always lower than marginal because lower brackets pay less).
Does this include state tax?
No. State tax varies enormously (0% in TX/FL/WA; ~13% in CA top bracket). Add your state separately.
What about FICA (Social Security + Medicare)?
Not included here. FICA is 7.65% on the first $168,600 (2024), then 1.45% above. Self-employed pay double.
Itemize vs standard deduction?
Take whichever is larger. Standard deduction (2024): $14,600 single / $29,200 MFJ. Itemize if your mortgage interest + state taxes (capped $10k) + charity exceed those.
About this calculator
US Federal Income Tax Calculator runs entirely in your browser using standard formulas. No data is sent to any server. We don't share your inputs with lenders, brokers, or anyone else — there's no funnel and no follow-up email.
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Why this calculator
vs typical free finance-calculator sites
| RichCalcs | Typical free site | |
|---|---|---|
| Price | Free | Free |
| Signup required | No | Often (for full results) |
| Ads inside the calculator | No | Yes (banner + sidebar) |
| Lead capture (email / phone) | No | Yes — sold to lenders |
| Data sent to server | No (browser-only) | Yes (analytics + tracking) |
| Amortization schedule | Full table | Often summary only |
| Bookmarkable URL per calc | Yes | Mixed |
| Loads in under 1s | Yes (static) | Often slow (ad tracking) |
| Open source | Yes | No |