BeastyTax

Income Tax Calculator

Estimate income tax, social contributions, and effective rate for US, UK, Germany, France, and Netherlands. Based on official 2026 tax rates.

1Select Country
2Taxpayer Type
3Annual Gross Income
$

Enter your gross income before any tax or deductions

4Personal DetailsAffects your result

Determines your standard deduction and tax brackets. Married Filing Jointly gives double the deduction and wider brackets.

Each qualifying child gives a $2,000 Child Tax Credit (phases out above $200k for single, $400k for MFJ).

Pre-tax contributions reduce your taxable income. 2024 limits: $23,000 (401k) or $7,000 (IRA). Enter total pre-tax amount.

Estimates only · 2024 rates · Not tax advice · Consult a qualified professional

Income Tax Guides by Country

Detailed breakdowns of how income tax works in the United States, United Kingdom, Germany, France, and the Netherlands — including 2024 brackets, what affects your bill, and how to file.

🇺🇸 Income Tax in the United States (2024)

The United States uses a federal progressive income tax system with seven marginal brackets ranging from 10% to 37%. Your exact rate depends on your filing status (single, married filing jointly, or head of household), your taxable income after deductions, and tax credits you qualify for. Federal income tax is separate from state income taxes, which range from 0% (Texas, Florida, Nevada) to 13.3% (California).

RateSingle filerMarried filing jointly
10%$0 – $11,600$0 – $23,200
12%$11,601 – $47,150$23,201 – $94,300
22%$47,151 – $100,525$94,301 – $201,050
24%$100,526 – $191,950$201,051 – $383,900
32%$191,951 – $243,725$383,901 – $487,450
35%$243,726 – $609,350$487,451 – $731,200
37%Over $609,350Over $731,200
  • Standard deduction reduces your taxable income before applying brackets: $14,600 (single) or $29,200 (married filing jointly) in 2024
  • Social Security tax: 6.2% on earnings up to $168,600 — employees pay half, employers pay the other half
  • Medicare tax: 1.45% on all earnings, plus an additional 0.9% surtax above $200,000
  • Child Tax Credit: $2,000 per qualifying child under 17, phases out above $200,000 income
  • 401(k) contributions (up to $23,000/year) reduce your taxable income dollar-for-dollar
  • Self-employed individuals pay 15.3% self-employment tax (both employer and employee shares) but deduct half before calculating income tax

🇬🇧 Income Tax in the United Kingdom (2024/25)

The UK income tax system features a Personal Allowance of £12,570 — income below this is completely tax-free. Above the allowance, the Basic Rate (20%) applies, rising to the Higher Rate (40%) above £50,270, and the Additional Rate (45%)above £125,140. Most employees pay tax automatically through PAYE (Pay As You Earn), while self-employed individuals file an annual Self Assessment return.

BandIncomeTax Rate
Personal AllowanceUp to £12,5700%
Basic Rate£12,571 – £50,27020%
Higher Rate£50,271 – £125,14040%
Additional RateOver £125,14045%
  • National Insurance Class 1 (employees): 8% on earnings between £12,570–£50,270, then 2% above
  • National Insurance Class 4 (self-employed): 9% on profits £12,570–£50,270, then 2% above — plus £3.45/week Class 2
  • Marriage Allowance: transfer £1,260 of unused Personal Allowance to your partner, saving up to £252
  • Personal Allowance tapers by £1 for every £2 of income above £100,000 — eliminated above £125,140
  • Pension contributions (SIPP or workplace) are fully deductible from taxable income
  • Scotland has slightly different income tax rates from the rest of the UK

🇩🇪 Income Tax in Germany (2024) — Einkommensteuer

Germany uses a continuous progressive tax formula (§32a EStG) rather than fixed brackets. The tax-free allowance (Grundfreibetrag) is €11,604 in 2024. Above that, rates rise continuously from 14% to 42%, with a 45% Reichsteuer above €277,825. Your Steuerklasse (tax class) is one of the most important factors — it determines how much tax your employer withholds each month.

ZoneTaxable IncomeRate
GrundfreibetragUp to €11,6040%
Eingangzone€11,605 – €17,00514% rising to 24%
Progressionszone€17,006 – €66,76024% rising to 42%
Spitzensteuersatz€66,761 – €277,82542%
ReichsteuerOver €277,82545%
  • Steuerklasse I (single/divorced), II (single parent), III (married higher earner), IV (married equal), V (married lower earner), VI (second job)
  • Class III doubles the Grundfreibetrag to €23,208 — Class V partner gets none
  • Social contributions (employee half): pension 9.3%, health ~7.3%, unemployment 1.3%, long-term care 1.7%
  • Kinderfreibetrag: €6,612 per child — compared to Kindergeld (€250/month), whichever is higher applies
  • Solidaritätszuschlag (solidarity surcharge) effectively abolished for most earners since January 2021
  • Church tax (Kirchensteuer): 9% of income tax in most states, 8% in Bavaria and Baden-Württemberg
  • Self-employed file via ELSTER (elster.de) — the official free filing portal

🇫🇷 Income Tax in France (2024) — Impôt sur le Revenu

France uses a unique family quotient (quotient familial) system that divides household income by the number of parts before applying brackets. A single person has 1 part; a married couple has 2 parts; each of the first 2 children adds 0.5 parts; the 3rd and subsequent children add 1 full part. This system can significantly lower the tax bill for families. Since 2019, employees have income tax withheld directly from their salary (prélèvement à la source).

TrancheIncome per partRate
Non-imposableUp to €11,2940%
Tranche 1€11,295 – €28,79711%
Tranche 2€28,798 – €82,34130%
Tranche 3€82,342 – €177,10641%
Tranche 4Over €177,10645%
  • 10% professional expense deduction applied automatically to employee income (capped at €14,171)
  • CSG: 9.8% social contribution on gross income — partially deductible from next year's tax
  • CRDS: 0.5% additional social debt contribution on gross income
  • Family quotient benefit is capped at €1,678 per half-part beyond the base
  • Single parents receive 1 extra full part for their first child
  • Self-employed (auto-entrepreneurs) in service activities pay ~22.7% cotisations sociales on turnover

🇳🇱 Income Tax in the Netherlands (2024) — Inkomstenbelasting

The Dutch tax system uses a box system dividing income into three categories. Box 1 (wages, self-employment, and pension income) uses two bands: 36.97%up to €75,518 and 49.5% above. Crucially, the Band 1 rate already includes national insurance premiums (AOW pension, ANW survivors, WLZ care). Two key tax credits directly reduce your final tax bill and are not just deductions.

Box 1 BandIncomeCombined Rate
Band 1Up to €75,51836.97% (incl. AOW/ANW/WLZ)
Band 2Over €75,51849.5% (income tax only)
  • Algemene heffingskorting: up to €3,362 tax credit, phases out above €24,813 income (6.095% per euro)
  • Arbeidskorting (labour credit): up to ~€5,158 for working people — reduces as income rises above ~€40,000
  • ZZP (self-employed): €3,750 zelfstandigenaftrek + 13.31% MKB-winstvrijstelling dramatically reduce taxable income
  • Hypotheekrenteaftrek (mortgage interest): fully deductible from Box 1 income at your marginal rate
  • Box 2 (substantial interest in own company): 26.9% on dividends
  • Box 3 (savings/investments): taxed on a deemed return of 6.04% at 36% — approximately 2.17% effective rate

Frequently Asked Questions

What is the difference between marginal and effective tax rate?
Your marginal rate is the rate applied to your last euro/dollar/pound of income — the highest bracket you fall into. Your effective rate is total tax ÷ total income. Because progressive systems tax different income bands at different rates, your effective rate is always lower than your marginal rate. A US single filer earning $80,000 has a 22% marginal rate but an effective federal rate of roughly 13%.
Are social contributions (NI, pension, CSG) included in the results?
Yes. BeastyTax includes employee social contributions alongside income tax, because all of them reduce your take-home pay. This covers National Insurance (UK), pension and health insurance contributions (Germany), CSG/CRDS (France), and for the Netherlands the national insurance premiums are built into the Box 1 rate itself.
Why does my tax change when I select 'Married Filing Jointly'?
In the US, married couples filing jointly get a larger standard deduction ($29,200 vs $14,600) and wider tax brackets — often resulting in a lower effective rate, especially when one partner earns significantly more. The UK, Germany (via Steuerklasse III/V splitting), and France (quotient familial) have similar benefits for married couples.
How accurate are the tax calculations?
BeastyTax uses official 2024 tax rates and implements country-specific logic: Germany uses the precise §32a EStG formula, France applies the full quotient familial with the half-part ceiling cap, and the US applies the Child Tax Credit phase-out correctly. Netherlands calculations apply the actual heffingskorting credits. Results are estimates and do not include every possible personal deduction or local tax.
When do I need to file my taxes?
USA: April 15 each year (extension to October 15 available via Form 4868, but taxes are still due April 15). UK: January 31 online, October 31 on paper. Germany: July 31 if filing independently, or February 28 of the following year with a registered Steuerberater. France: late May to early June online (varies by region). Netherlands: May 1.
What is PAYE / Lohnsteuer / prélèvement à la source?
These are 'pay as you earn' systems where your employer deducts income tax from your salary each pay period before you receive it. The UK calls it PAYE, Germany calls it Lohnsteuerabzug, France implemented prélèvement à la source in 2019, and the Netherlands uses loonheffing. Employees under these systems often don't need to file a return unless they have additional income sources or want to claim deductions.
Disclaimer:BeastyTax provides tax estimates for informational purposes only. Calculations are based on published 2024 rates and are intended as a guide, not financial or legal advice. Tax laws change annually. Individual circumstances vary significantly — deductions, credits, local taxes, and special rules are not all captured. Always consult a qualified tax professional or your country's official tax authority for your final tax liability.