What is Income Tax Calculator?
The Income Tax Calculator works out what you owe under both the old and the new tax regime for FY 2025-26 (AY 2026-27) and shows which one leaves you better off. It applies the correct slab rates for your age group, the standard deduction for salary and pension income, the Section 87A rebate, surcharge with marginal relief on high incomes, and the 4% health and education cess. Old-regime deductions such as 80C, 80D, home loan interest, NPS, and HRA can be entered to see how much they actually save you.
How to Use
Enter your annual gross income and choose whether it is salary/pension or business income.
Pick your age group - it changes the exemption limit under the old regime.
Fill in your old-regime deductions to see both regimes calculated side by side, with the cheaper one highlighted.
Why Use This Tool?
Choosing between the regimes is not a matter of comparing headline rates - it depends entirely on how many deductions you actually claim. Seeing both computed on the same income makes the answer obvious. The calculator also handles the details most simple calculators skip: marginal relief on the 87A rebate just above ₹12 lakh, marginal relief on surcharge, and the age-based exemption limits for senior citizens. Everything runs in your browser, so your salary figures never leave your device.
FAQ
Nil up to ₹4 lakh, 5% from ₹4-8 lakh, 10% from ₹8-12 lakh, 15% from ₹12-16 lakh, 20% from ₹16-20 lakh, 25% from ₹20-24 lakh, and 30% above ₹24 lakh, plus 4% cess.
The Section 87A rebate of up to ₹60,000 cancels the tax on taxable income up to ₹12 lakh. For salaried taxpayers the ₹75,000 standard deduction pushes the break-even gross salary to ₹12.75 lakh. Just above that limit, marginal relief caps your tax at the amount of income exceeding ₹12 lakh.
The old regime wins only if your deductions are large - typically a full 80C, health insurance, significant HRA, and home loan interest. Enter your actual figures and the calculator highlights the cheaper option. Salaried taxpayers can switch regime every year; those with business income cannot switch freely.
Only a few. The ₹75,000 standard deduction on salary and pension applies, and so does the employer's NPS contribution under 80CCD(2). Deductions such as 80C, 80D, HRA, and home loan interest on a self-occupied property are not available, which is why this calculator applies them to the old regime only.
No. Capital gains, lottery winnings, and other income taxed at special rates fall outside slab rates and are not included. The result is an estimate for salary and normal income - confirm the final figure with a chartered accountant before filing.
No. Every calculation happens locally in your browser and nothing is uploaded or saved.