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Income Tax Calculator India

Compare Old vs New Tax Regime liabilities in India under the latest Union Budget slabs. Find your optimal regime with rules, rebates, deductions, and worked examples.

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Deductions (Old Regime Only)

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Numlator. (2026). Income Tax Calculator India: Old vs New Regime Comparison. Retrieved July 31, 2026, from https://numlator.com/finance/income-tax-calculator-india.html

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Analytical Logic

Understanding India's Income Tax System

India operates a progressive income tax system where higher income is taxed at higher rates through a slab structure. Since the Union Budget 2020, taxpayers can choose between two parallel systems: the Old Tax Regime (which allows various deductions and exemptions) and the New Tax Regime (which offers lower base rates but eliminates most deductions). Choosing the right regime can save you tens of thousands of rupees annually, making this comparison tool essential for every salaried individual and self-employed professional in India.

New Regime Tax Slabs (FY 2024-25)

Income Slab Tax Rate
Up to ₹3,00,000Nil
₹3,00,001 - ₹7,00,0005%
₹7,00,001 - ₹10,00,00010%
₹10,00,001 - ₹12,00,00015%
₹12,00,001 - ₹15,00,00020%
Above ₹15,00,00030%

Old Regime Tax Slabs (FY 2024-25)

Income Slab Tax Rate
Up to ₹2,50,000Nil
₹2,50,001 - ₹5,00,0005%
₹5,00,001 - ₹10,00,00020%
Above ₹10,00,00030%

Worked Example: ₹12 LPA Salary

Consider a salaried individual earning ₹12,00,000 gross annual salary with the following deductions under the Old Regime:

  • Old Regime: Standard Deduction ₹50,000 + 80C (PPF/ELSS) ₹1,50,000 + 80D (Health Insurance) ₹25,000 + HRA ₹1,80,000. Taxable income = ₹7,95,000. Tax = ₹57,500 + 4% cess = ₹59,800
  • New Regime: Standard Deduction ₹75,000. Taxable income = ₹11,25,000. Tax = ₹20,000 + ₹30,000 + ₹18,750 = ₹68,750 + 4% cess = ₹71,500
  • Result: With ₹4,05,000 in deductions, the Old Regime saves approximately ₹11,700 per year. Without sufficient deductions, the New Regime would be cheaper.

Key Deductions Under the Old Regime

  • Section 80C (₹1.5L): PPF, ELSS, EPF, NSC, life insurance, tuition fees, home loan principal.
  • Section 80D (₹25K-₹1L): Health insurance premiums for self, spouse, children, and parents.
  • Section 24(b) (₹2L): Interest on home loan for self-occupied property.
  • HRA Exemption: Calculated based on actual HRA received, rent paid, and city of residence (metro vs non-metro).

FAQ

It depends on your total deductions and exemptions. The New Regime offers lower tax rates but disallows most deductions (80C, 80D, HRA, LTA). If your combined deductions under the Old Regime exceed approximately ₹3.75 Lakhs, the Old Regime may save you more. Use the side-by-side comparison in this calculator to see your exact liability under both regimes before filing.
Under the New Regime for FY 2024-25: income up to ₹3 Lakhs is nil, ₹3-7 Lakhs at 5%, ₹7-10 Lakhs at 10%, ₹10-12 Lakhs at 15%, ₹12-15 Lakhs at 20%, and above ₹15 Lakhs at 30%. A standard deduction of ₹75,000 is available for salaried individuals. The Section 87A rebate makes income up to ₹7 Lakhs effectively tax-free.
The standard deduction is a flat reduction from gross salary before tax computation, requiring no investment proofs. In FY 2024-25, it is ₹75,000 under the New Regime (raised from ₹50,000 in Budget 2024) and ₹50,000 under the Old Regime. This deduction is available only to salaried employees and pensioners, not to self-employed individuals.
Under Section 87A, if your total taxable income (after all deductions) does not exceed ₹7 Lakhs under the New Regime or ₹5 Lakhs under the Old Regime, a rebate equal to the full tax amount is granted, making your tax liability zero. Note that this rebate does not apply to special rate incomes like long-term capital gains.
Section 80C allows deductions up to ₹1.5 Lakhs per year for investments in PPF, ELSS mutual funds, EPF contributions, NSC, 5-year fixed deposits, life insurance premiums, children's tuition fees, and home loan principal repayment. This deduction is only available under the Old Tax Regime and is one of the most widely used tax-saving provisions.
Yes, salaried individuals can switch between the Old and New Regime every financial year when filing their ITR. However, individuals with business income can switch only once - from New to Old - and the choice becomes permanent thereafter. The New Regime is the default regime; you must explicitly opt for the Old Regime if you prefer it.
Financial & Tax Disclaimer

The calculations, amortization schedules, and financial estimates provided by this tool are strictly for informational and educational purposes. They do not constitute formal investment, tax, legal, or accounting advice. Mortgage rates, loan terms, and tax brackets change frequently; always consult a certified financial planner (CFP), CPA, or licensed lending officer before making major financial commitments.

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