How the Indian Income Tax Calculator Works
India levies income tax on individuals based on a progressive slab system. Starting from FY 2025-26, the government offers two parallel frameworks: the New Tax Regime (default) and the Old Tax Regime. The New Regime features lower rates spread across more slabs but does not permit most deductions and exemptions. The Old Regime retains higher base rates yet allows taxpayers to claim deductions under Sections 80C, 80D, HRA exemption, and others.
New Regime Highlights (FY 2025-26)
Under the revised New Regime, a standard deduction of ₹75,000 is available to salaried individuals. The tax slabs begin at nil for income up to ₹4,00,000 and rise gradually to 30% for income above ₹24,00,000. A rebate under Section 87A ensures that taxpayers with taxable income up to ₹12,75,000 (after the standard deduction) pay zero tax, making this regime highly attractive for middle-income earners.
Old Regime and Age Benefits
Senior citizens (aged 60-80) enjoy a higher basic exemption limit of ₹3,00,000, while super senior citizens (above 80) are exempt up to ₹5,00,000. In the Old Regime, taxpayers with net taxable income up to ₹5,00,000 receive a full rebate under Section 87A. A 4% Health and Education Cess is added on top of the computed tax (including any applicable surcharge). Surcharge applies at progressive rates for incomes exceeding ₹50 lakh, with the New Regime capping the surcharge rate at 25%.
Use this calculator to compare both regimes side by side and determine which option results in lower tax liability for your specific income level. All figures are indicative and based on the Union Budget 2025-26 proposals. Consult a qualified tax professional for personalised advice.