Income Tax Calculator India

The Income Tax calculator for India is one of the most-searched personal finance tools in the country, especially around January-March when tax-saving decisions need to be made and again in July when ITR filing peaks. With the introduction of the new tax regime in 2020 and the major slab changes in Budget 2024, the calculation has become more nuanced — the same gross salary can now produce two very different tax liabilities depending on which regime you choose. This calculator runs both side by side so you can decide which one to declare to your employer for TDS purposes and which one to use when filing your ITR.

For FY 2024-25 (the year ended 31 March 2025, ITR filed by 31 July 2025), the new tax regime has been the default for most taxpayers. Its slabs are: zero tax up to ₹3 lakh, 5% from ₹3-7 lakh, 10% from ₹7-10 lakh, 15% from ₹10-12 lakh, 20% from ₹12-15 lakh and 30% above ₹15 lakh. The standard deduction for salaried employees is ₹75,000. Section 87A rebate makes the effective tax-free income ₹7 lakh — meaning anyone with taxable income at or below ₹7 lakh pays zero tax. Health and Education Cess of 4% is added on the tax computed.

The old tax regime continues to be available as an option, with slabs of: zero up to ₹2.5 lakh, 5% from ₹2.5-5 lakh, 20% from ₹5-10 lakh, and 30% above ₹10 lakh. Standard deduction is ₹50,000, and 87A rebate makes income up to ₹5 lakh tax-free. The big advantage of the old regime is the full set of deductions and exemptions — Section 80C up to ₹1.5 lakh (ELSS, EPF, PPF, life insurance, principal on home loan), Section 80D up to ₹75,000 for health insurance, Section 80CCD(1B) up to ₹50,000 for NPS, House Rent Allowance exemption under Section 10(13A), and home loan interest deduction up to ₹2 lakh under Section 24(b).

The key insight from running both calculations is that the tipping point is highly individual. For a salaried employee earning ₹12 lakh with no home loan and just EPF for 80C, the new regime is clearly better — it saves around ₹50,000 in tax. For someone earning ₹20 lakh with a home loan generating ₹2 lakh interest, full ₹1.5 lakh 80C investments, ₹50,000 NPS and ₹2.5 lakh HRA exemption, the old regime can save ₹70,000-1,00,000. There is no universal answer; only the calculation tells you the truth.

Section 87A is the silent hero of the recent budgets. By making income up to ₹7 lakh effectively tax-free under the new regime, the government has removed any tax liability for roughly 80% of Indian salary earners. For someone earning ₹6.5 lakh annually, the calculator shows zero tax — the standard deduction reduces taxable income to ₹5.75 lakh, the slab tax computes to ₹13,750, and the 87A rebate wipes that out completely.

For planning the year, the right approach is: in April, run this calculator for both regimes using your projected annual income and any deductions you plan to invest in. Declare the more favourable regime to your employer to set the correct TDS. In January-February, redo the calculation with actual numbers for the year. If the regime you initially chose turns out worse, switch to the other regime when filing your ITR — the choice is final only at the time of return filing for non-business income.

A few specific tips. Health insurance under Section 80D is one of the highest-ROI tax deductions because it doubles as essential financial protection. The Section 80CCD(1B) NPS deduction is over and above 80C, giving an extra ₹50,000 of tax-saving room. HRA exemption is often misunderstood — the calculator on our [HRA page](/hra-calculator) shows you the maximum legally claimable amount based on actual rent paid versus 50% of basic. Home loan interest under Section 24(b) is available for both self-occupied and let-out property, but the cap of ₹2 lakh on overall house property loss limits the benefit for high-value properties.

Finally, capital gains are computed separately and are not part of slab-based taxation. Equity long-term capital gains above ₹1.25 lakh per year (held more than 12 months) are taxed at 12.5%. Equity short-term gains at 20%. Debt mutual fund gains, since April 2023, are taxed at slab rate regardless of holding period. These are added on top of slab-based tax, not used as deductions against it.