Income Tax Calculator
Estimate your income tax liability, effective tax rate, marginal tax rate, and take-home pay with this free online calculator. Supports India (new & old regimes, FY 2024-25), United States (2024 federal brackets), United Kingdom (2024-25), Canada (2024 federal), and Australia (2024-25). Includes slab-wise breakdown, standard deductions, and Section 87A rebate logic. Free, private, and runs entirely in your browser.
Configure
Enter your income detailsResults
Tax breakdownYour tax results will appear here
Enter your income and click Calculate Tax to get started.
What is an Income Tax Calculator?
An Income Tax Calculator is a free online tool that estimates the amount of tax you owe to your government based on your annual income and applicable deductions. It applies the progressive slab system used by most countries, where higher income brackets are taxed at higher rates. The result is a clear breakdown of your total tax, effective rate, marginal rate, and take-home pay.
This calculator supports five major tax systems: India (both new and old regimes for FY 2024-25), United States (2024 federal brackets for single and married-filing-jointly filers), United Kingdom (2024-25 with personal allowance tapering), Canada (2024 federal brackets), and Australia (2024-25). You can switch between countries instantly using the selector.
Everything runs locally in your browser. Your financial data never leaves your device — there is no server processing, no logging, and no data storage. Close the tab and your data is gone.
How to calculate income tax — step by step
Using the calculator takes only a few seconds. Here's the full process:
- Select your country and tax system. Choose from India (new or old regime), US (single or MFJ), UK, Canada, or Australia.
- Enter your gross annual income. This is your total income before any deductions or taxes.
- Add deductions (optional). Enter any additional deductions beyond the automatically applied standard deduction. Examples: Section 80C investments in India (old regime), 401(k) contributions in the US, or private pension contributions in the UK.
- Click Calculate Tax. The tool instantly shows your taxable income, total tax, effective rate, marginal rate, take-home pay, and a slab-wise breakdown.
- Copy or download. Use the buttons to copy the full breakdown or download it as a plain text file.
Ctrl + Enter (or Cmd + Enter on Mac) inside any input field to run the calculation instantly.
India – Income Tax Slabs FY 2024-25
New Regime (Default)
The new regime offers lower slab rates, a higher standard deduction, and no deductions for most investments. It's the default regime for FY 2024-25.
| Taxable Income Slab | Tax Rate |
|---|---|
| Up to ₹3,00,000 | Nil (0%) |
| ₹3,00,001 – ₹7,00,000 | 5% |
| ₹7,00,001 – ₹10,00,000 | 10% |
| ₹10,00,001 – ₹12,00,000 | 15% |
| ₹12,00,001 – ₹15,00,000 | 20% |
| Above ₹15,00,000 | 30% |
Standard deduction: ₹75,000 for salaried individuals.
Section 87A rebate: Full tax rebate for taxable income up to ₹7,00,000 (maximum rebate ₹25,000).
Marginal relief: Available for income slightly above ₹7 lakh.
Old Regime
The old regime allows deductions like Section 80C (₹1.5 lakh), 80D, HRA, and home loan interest, but slabs start at ₹2.5 lakh and rates are higher at most levels.
| Taxable Income Slab | Tax Rate |
|---|---|
| Up to ₹2,50,000 | Nil (0%) |
| ₹2,50,001 – ₹5,00,000 | 5% |
| ₹5,00,001 – ₹10,00,000 | 20% |
| Above ₹10,00,000 | 30% |
Standard deduction: ₹50,000 for salaried individuals.
Section 87A rebate: Full tax rebate for taxable income up to ₹5,00,000 (maximum rebate ₹12,500).
Health & Education Cess: 4% on income tax (applied on both regimes).
United States – Federal Tax Brackets 2024
The US uses a progressive federal income tax system. Tax brackets vary by filing status. This calculator supports Single and Married Filing Jointly (MFJ). State taxes are not included.
| Rate | Single | Married 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% | Above $609,350 | Above $731,200 |
Standard deduction: $14,600 for single filers, $29,200 for married filing jointly (2024).
United Kingdom – Income Tax 2024-25
The UK has a personal allowance plus three main tax bands. The personal allowance tapers above £100,000 income.
| Tax Band | Taxable Income | Rate |
|---|---|---|
| Personal Allowance | Up to £12,570 | 0% |
| Basic Rate | £12,571 – £50,270 | 20% |
| Higher Rate | £50,271 – £125,140 | 40% |
| Additional Rate | Above £125,140 | 45% |
Personal allowance tapering: Above £100,000, the allowance reduces by £1 for every £2 of income, disappearing at £125,140.
Canada – Federal Tax Brackets 2024
Canada uses progressive federal brackets. Provincial taxes are additional and not included in this calculator.
| Federal Taxable Income | Rate |
|---|---|
| $0 – $55,867 | 15% |
| $55,868 – $111,733 | 20.5% |
| $111,734 – $173,205 | 26% |
| $173,206 – $246,752 | 29% |
| Above $246,752 | 33% |
Basic Personal Amount (BPA): Up to $15,705 federal tax credit (2024).
Australia – Income Tax 2024-25
Australia uses progressive tax brackets plus a Medicare Levy of 2% on taxable income.
| Taxable Income | Rate |
|---|---|
| $0 – $18,200 | 0% |
| $18,201 – $45,000 | 16% |
| $45,001 – $135,000 | 30% |
| $135,001 – $190,000 | 37% |
| Above $190,000 | 45% |
Medicare Levy: 2% additional tax on taxable income (applied in this calculator).
Understanding Effective vs Marginal Tax Rate
Two key numbers appear in your results. Here's what they mean:
| Metric | Definition | Why it matters |
|---|---|---|
| Effective Tax Rate | Total tax ÷ Gross income × 100 | Shows your average tax burden across all income |
| Marginal Tax Rate | The tax rate on your last unit of income | Helps you plan the tax impact of extra income or deductions |
Your effective rate is always lower than your marginal rate because lower-income portions are taxed at lower rates. For example, a person earning ₹10 lakh in India (new regime) has a marginal rate of 10% but an effective rate closer to 5%.
Tips to reduce your income tax
- Max out tax-advantaged accounts. In India, use Section 80C (ELSS, PPF, EPF), NPS (80CCD), and health insurance (80D) under the old regime. In the US, maximize 401(k) and IRA contributions. In the UK, contribute to a private pension (SIPP).
- Choose the right regime. In India, the new regime is usually better if you have limited deductions. Use this calculator to compare both regimes.
- Claim all eligible deductions. Home loan interest, education loan interest, HRA, and medical expenses all reduce taxable income.
- Time your income. If you're near a slab boundary, deferring or accelerating income can save tax.
- Use tax-saving investments wisely. Don't buy products just for tax benefits — evaluate returns net of tax.
- Consider tax-loss harvesting. In the US, offset capital gains with capital losses.
- Consult a tax professional. Tax laws are complex and change frequently. A CA/CPA/tax advisor can find savings specific to your situation.