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Income Tax Calculator

Income tax uses progressive slab rates � each income bracket is taxed at its own rate. Free online calculator with instant results.

Only applies to systems that allow deductions (e.g. India Old Regime)

Total tax payable

$0

Effective rate

0%

Take-home (yearly)

$0

Monthly in-hand

$0

Take-home Tax Paid

Slab breakdown

Disclaimer. This calculator provides estimates based on standard FY 2024-25 slabs. Actual tax may vary based on surcharge, special incomes, or exemptions. Consult a tax professional for filing.

Method

How this calculator works

Income tax uses progressive slab rates � each income bracket is taxed at its own rate. Tax = sum of (income in each slab � slab rate) + 4% cess.

Taxable Income = Gross Income - Deductions
Tax = S (Income in Slab � Slab Rate)
Total Tax = Tax + 4% Cess
  1. Enter your annual gross income.
  2. Add total deductions (80C, 80D, HRA, etc.) � applicable in Old Regime only.
  3. Select your tax regime (Old or New).
  4. The calculator applies slab rates to your taxable income progressively.
  5. Cess (4%) is added. Section 87A rebate is applied if eligible.

Examples

Worked examples

Real numbers, end-to-end results.

?10L income � New Regime

Tax ?54,600 � Effective 5.5%

Standard salaried employee with no deductions needed.

?15L income � Old Regime � ?2.5L deductions

Tax ?1,56,000 � Effective 10.4%

Old regime beneficial when deductions exceed ?2L+.

?7L income � New Regime

Tax ?0 (87A rebate)

Full rebate applies under new regime.

Use cases

When to use it

  • Plan your salary structure and tax-saving investments for the financial year.
  • Compare Old vs New regime to pick the optimal one.
  • Estimate advance tax payments for freelancers and self-employed.
  • Quick estimate before filing ITR.

Disclaimer: This calculator provides estimates for informational and educational purposes only. It is not a substitute for professional financial advice, tax planning, or investment guidance. Always consult a qualified financial advisor or accountant for decisions affecting your finances.

Sources: Tax slabs per Finance Act 2024 (India), IRS Publication 15-T (US), HMRC rates (UK). Marginal slab calculation.

FAQ

Frequently asked questions

What is income tax and how is it calculated?
Income tax is a government levy on your earned income. It is calculated by applying progressive slab rates to your taxable income (gross income minus eligible deductions). Higher income portions are taxed at higher rates.
What is the difference between Old Regime and New Regime?
The Old Regime allows claiming deductions under 80C, 80D, HRA, etc., but has higher slab rates. The New Regime offers lower slab rates but removes most deductions. Choose based on which gives you lower tax.
What is Section 87A rebate?
Under the New Regime, if your taxable income is ?7 lakh or below, you get a full rebate � meaning zero tax. This makes effective tax-free income higher in the new regime.
What is cess and why is it added?
Health and Education Cess is 4% of your total tax (before cess). It funds government health and education initiatives. It applies to everyone regardless of regime or income level.
How do I reduce my income tax legally?
Under the Old Regime: invest in 80C instruments (PPF, ELSS, NPS), claim HRA, medical insurance (80D), home loan interest (24b). Under New Regime: options are limited as most deductions are removed.
What is effective tax rate?
Effective tax rate is total tax divided by gross income, expressed as a percentage. It shows what percentage of your overall income goes to tax � often much lower than the highest slab rate applicable to you.
Methodology, assumptions & limitations

How we calculate: This calculator uses standard, peer-reviewed mathematical formulas implemented in TypeScript. All calculations run entirely in your browser — no data is sent to any server.

Assumptions: Unless stated otherwise, calculations assume constant rates over the specified period, no taxes or fees beyond those explicitly input, and standard compounding conventions for the formula type.

Limitations: Results are estimates for planning purposes. Real-world outcomes may differ due to variable rates, regulatory changes, taxes, fees, inflation, or other factors not modeled. This tool does not constitute financial, tax, or investment advice.

When NOT to use this: Do not rely solely on this calculator for major financial decisions such as mortgages, retirement planning, or tax filing without consulting a qualified financial advisor or accountant.

Feedback: Found an error or have a suggestion? Contact us — we review and correct reported issues within 48 hours.

Deep Dive Guide

Income Tax Calculation in India — Old vs New Regime Explained

A complete, easy-to-understand guide on how income tax is calculated in India. Understand the difference between the old and new tax regimes, deductions, surcharges, and how to choose the right one.

Read Full Guide

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