Income Tax Calculator (FY 2025-26)
Estimate your income tax liability for Financial Year 2025-26 (Assessment Year 2026-27) under either the new tax regime or the old tax regime, including the Section 87A rebate, applicable surcharge, and health & education cess.
Fill in the form and select "Calculate" to see your results here.
What is the Income Tax Calculator?
This calculator estimates the income tax payable by an individual taxpayer in India for FY 2025-26, based on the tax regime you choose. Since the 2023 Budget, the new tax regime is the default option, but you can still opt for the old regime if its deductions work out better for you. Because the two regimes use different slab rates and allow different deductions, the tax you owe can differ significantly depending on which one you pick — this calculator lets you check both.
How to use this calculator
- Select your tax regime — New or Old.
- Enter your annual gross income (salary, business income, or other taxable income combined, before any deductions).
- If you selected the old regime, choose your age category and enter your Section 80C investments and any other eligible deductions.
- Select "Calculate Tax" to see your taxable income, tax payable, and effective tax rate.
Formula
Slab rates, the standard deduction, and the Section 87A rebate threshold differ between the two regimes — see the editorial policy for how these figures are sourced and kept current.
Example
Consider a taxpayer under the new regime with an annual gross income of ₹12,00,000 and no other deductions (the new regime only allows the standard deduction). After the ₹75,000 standard deduction, taxable income is ₹11,25,000. This falls at or below the ₹12,00,000 rebate threshold used for this estimate together with the slab computation, so the tax works out to nil after the Section 87A rebate. A taxpayer with the same gross income under the old regime, claiming the full ₹1,50,000 Section 80C deduction plus the ₹50,000 standard deduction, would have a taxable income of ₹10,00,000 and a materially different tax outcome — try both in the calculator above to compare.
Factors that affect your income tax
- Regime choice. The old regime allows deductions like Section 80C, 80D, and HRA exemption, but taxes income at higher slab rates. The new regime has lower slab rates but disallows most deductions.
- Age category. Under the old regime, senior citizens (60-80) and super senior citizens (80+) get a higher basic exemption limit. The new regime uses the same slabs regardless of age.
- Section 87A rebate. Taxable income at or below the rebate threshold (₹12,00,000 new regime, ₹5,00,000 old regime) results in nil tax; just above the threshold, marginal relief reduces — but doesn't fully eliminate — the tax.
- Surcharge. Applies only above ₹50,00,000 taxable income, at rates that increase with income. This calculator applies a flat surcharge rate for the applicable slab and does not smooth the small marginal-relief band right at each surcharge threshold.
Frequently Asked Questions
It depends on how much you can claim in deductions under the old regime. As a rough guide, if your eligible deductions (80C, HRA, home loan interest, etc.) are large relative to your income, the old regime may work out cheaper. Use this calculator with both regime options to compare your specific numbers.
Yes. This calculator applies the standard deduction for your selected regime (₹75,000 for the new regime, ₹50,000 for the old regime) automatically — you don't need to enter it.
No. This calculator estimates your total tax liability for the year, not the balance still payable after TDS. Compare the result to the TDS shown on your Form 16 to see whether you owe additional tax or are due a refund.
It shouldn't — marginal relief is designed to prevent that. This calculator applies marginal relief so tax payable near the threshold never exceeds the amount your income exceeds the threshold by. If a result looks off, double-check your deduction entries.
Salaried individuals without business income can generally choose either regime each financial year. Those with business or professional income face restrictions on switching back to the old regime after opting for the new one — check current rules or consult a tax professional for your situation.
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Tax calculations are estimates based on the selected financial year and the information entered. They do not account for every deduction, exemption, or edge case in the Income Tax Act, and are not a substitute for professional tax advice. See our full disclaimer.