Income Tax Calculator

What Is This Income Tax Calculator?

This free income tax calculator covers five countries — the United States, United Kingdom, Australia, Canada, and India — all in one place. Enter your income, select your country, and this income tax calculator instantly shows your total tax, effective tax rate, marginal rate, and take-home pay. It uses the latest verified tax brackets for each country, updated for the current tax year.

Whether you are comparing salaries across countries, planning a move abroad, evaluating a job offer, or simply want to understand your own tax bill, this income tax calculator gives you a complete, accurate breakdown in seconds.

How Does This Income Tax Calculator Work?

Each country's income tax calculator tab uses that country's specific rules — personal allowances, standard deductions, social security contributions, health levies, and all other applicable charges. No approximations are used. This income tax calculator applies the exact rules for each jurisdiction.

🇺🇸 United States Income Tax Calculator — 2025

The US income tax calculator applies 2025 IRS federal tax brackets (updated for the One Big Beautiful Bill Act) plus state income tax for all 50 states. Federal brackets range from 10% to 37% depending on taxable income and filing status. The standard deduction of $15,750 (single) or $31,500 (MFJ) is applied automatically. Social Security (6.2% up to $176,100) and Medicare (1.45%) are included. Pre-tax 401(k) contributions reduce taxable income before federal and state tax is applied.

🇬🇧 United Kingdom Income Tax Calculator — 2025/26

The UK income tax calculator applies the 2025/26 HMRC tax bands for England, Wales, and Northern Ireland. The Personal Allowance is £12,570 — income below this is tax-free. Income between £12,571–£50,270 is taxed at 20% (Basic Rate). Income between £50,271–£125,140 is taxed at 40% (Higher Rate). Income above £125,140 is taxed at 45% (Additional Rate). Importantly, the Personal Allowance tapers to zero between £100,000 and £125,140, creating an effective 60% marginal rate in this band. Employee National Insurance is calculated at 8% on earnings between £12,571 and £50,270, and 2% on earnings above £50,270. Student loan repayments are included for Plans 1, 2, and 5 where applicable.

🇦🇺 Australia Income Tax Calculator — 2025/26

The Australia income tax calculator applies ATO resident tax rates for the 2025/26 financial year (1 July 2025 to 30 June 2026). The tax-free threshold is A$18,200. Above this, rates are 16% to $45,000, 30% to $135,000, 37% to $190,000, and 45% above $190,000. The Medicare Levy of 2% is added for most residents — it is waived for incomes below $27,222 and reduced on a sliding scale up to $34,027. The Low Income Tax Offset (LITO) reduces tax for earnings up to $66,667. Salary sacrifice (extra super contributions) reduces taxable income. The Medicare Levy Surcharge (1–1.5%) applies to high-income earners without private hospital cover — this income tax calculator flags when it may apply.

🇨🇦 Canada Income Tax Calculator — 2025

The Canada income tax calculator applies both federal and provincial/territorial income tax — because Canadians pay both. The 2025 federal Basic Personal Amount is $16,129 — applied as a 14.5% non-refundable credit. Federal rates are 14.5% to $57,375, 20.5% to $114,750, 26% to $177,882, 29% to $253,414, and 33% above. Provincial tax is stacked on top at rates specific to each province. This income tax calculator covers all 13 provinces and territories including Ontario, British Columbia, Alberta, Quebec, and all others. RRSP contributions reduce federal and provincial taxable income.

🇮🇳 India Income Tax Calculator — FY 2025-26

The India income tax calculator covers both the New Tax Regime (default since FY 2023-24) and the Old Tax Regime — allowing direct comparison. Under the New Regime for FY 2025-26, income up to ₹4 lakh is tax-free. Rates then rise from 5% to 30% across six slabs. The Section 87A rebate effectively makes income up to ₹12 lakh tax-free under the new regime. Salaried employees additionally benefit from a ₹75,000 standard deduction, making ₹12.75 lakh effectively tax-free. A 4% Health and Education Cess is added on top of calculated tax. Under the Old Regime, Section 80C, 80D, 24(b), and other deductions are available. This income tax calculator shows side-by-side results for both regimes to help you choose.

Effective Rate vs Marginal Rate — What Is the Difference?

This income tax calculator shows both rates for every country.

• Effective tax rate: The actual percentage of your total income paid in tax. Always lower than your marginal rate because lower income is taxed at lower rates first.
• Marginal tax rate: The rate applied to your last (highest) dollar of income. Relevant for decisions about additional income, deductions, or salary sacrifice — because any additional dollar earned is taxed at this rate.

For example, a single US filer earning $80,000 is in the 22% bracket — but their effective rate is approximately 13.5% because the first $11,925 is taxed at 10% and the next $36,550 at 12%. This income tax calculator shows both figures clearly.

Which Country Has the Lowest Income Tax?

This varies significantly by income level. Generally, the US has lower tax rates than the UK, Australia, and Canada at most income levels — but this is before accounting for Social Security/Medicare (US), National Insurance (UK), and Medicare Levy (AU), which this income tax calculator includes. India's new regime has among the most competitive rates for middle-income earners globally, particularly under ₹12 lakh. Use this income tax calculator to compare your specific income across all five countries simultaneously.

Income Tax Calculator — Frequently Asked Questions