Free Tool — Income Tax Calculator
Income Tax Calculator
Compare old regime vs new regime tax on your income for FY 2025-26, and see which one works out cheaper.
Old regime tax (incl. cess)
₹1,17,000.00
New regime tax (incl. cess)
₹0.00
New regime saves you
₹1,17,000.00
Estimate only, using FY 2025-26 (AY 2026-27) slabs and a simplified Section 87A rebate — it excludes surcharge and several itemised deductions. Tax slabs typically change with each Union Budget, so verify against the latest official slabs or a chartered accountant before filing or making a regime decision.
Old regime or new regime — know before you choose
India's income tax system lets most taxpayers choose between the old regime (more deductions, higher slab rates) and the new regime (fewer deductions, lower slab rates). The right choice depends entirely on how many deductions and exemptions you actually claim — there's no universal answer.
This calculator estimates tax payable under both regimes for FY 2025-26 (AY 2026-27) using the latest slabs and standard deduction we have on record, including the Section 87A rebate. It does not account for surcharge on very high incomes, marginal-relief edge cases, or every possible deduction — and tax slabs are typically revised in the Union Budget each year, so always cross-check against the latest official slabs or a chartered accountant before filing or making a regime decision.
Income tax formula used by the calculator
New regime: Taxable income = Gross income − ₹75,000. Tax = slab tax at 0% up to ₹4 lakh, then 5%, 10%, 15%, 20% and 25% on each next ₹4 lakh, and 30% above ₹24 lakh. Tax is nil if taxable income is ₹12,00,000 or less, and above that it is capped at Taxable income − ₹12,00,000. Old regime: Taxable income = Gross income − ₹50,000 − Deductions. Tax = slab tax at 0% up to ₹2.5 lakh, 5% up to ₹5 lakh, 20% up to ₹10 lakh and 30% above. Tax is nil if taxable income is ₹5,00,000 or less. In both regimes, Final tax = Tax × 1.04 (4% health and education cess).
How to use the income tax calculator
- 1Enter your annual gross income for the financial year: salary before any deductions, plus other taxable income such as bank interest.
- 2Do not subtract the standard deduction yourself. The calculator takes off ₹75,000 for the new regime and ₹50,000 for the old regime.
- 3In the deductions field, enter the total you can claim under the old regime, such as 80C investments, health insurance, HRA exemption and home loan interest.
- 4Compare the old regime tax and new regime tax figures, both shown including 4% cess.
- 5Read the highlighted figure at the bottom to see which regime saves you money and by how much.
Worked example: ₹15 lakh salary, old vs new regime
Here is how the income tax calculator handles a salaried store manager earning ₹15,00,000 a year who claims ₹2,00,000 of old-regime deductions, such as 80C investments and health insurance. Under the new regime, taxable income is ₹15,00,000 − ₹75,000 = ₹14,25,000. Slab tax is ₹20,000 (5% of ₹4–8 lakh) + ₹40,000 (10% of ₹8–12 lakh) + ₹33,750 (15% of the ₹2,25,000 above ₹12 lakh) = ₹93,750, or ₹97,500 with cess.
Under the old regime, taxable income is ₹15,00,000 − ₹50,000 − ₹2,00,000 = ₹12,50,000. Slab tax is ₹12,500 (5% of ₹2.5–5 lakh) + ₹1,00,000 (20% of ₹5–10 lakh) + ₹75,000 (30% of the ₹2,50,000 above ₹10 lakh) = ₹1,87,500, or ₹1,95,000 with cess. The new regime saves ₹97,500. At this income, the old regime only comes out cheaper once deductions go above ₹5,43,750, which usually takes HRA exemption and home loan interest on top of full 80C and health insurance claims.
Checks before you choose a regime
- Enter income before the standard deduction. A salary of up to ₹12,75,000 shows nil tax under the new regime because ₹75,000 comes off first.
- Just above the limit, marginal relief caps new-regime tax at the taxable income above ₹12 lakh: a gross salary of ₹12,90,000 shows ₹15,600 with cess, not ₹64,740.
- The standard deduction is only for salary and pension. If your income is from business or freelancing, the estimate can be lower than your real tax.
- Count only deductions you can back with proof, and remember 80C is capped at ₹1,50,000 a year.
- Surcharge, which applies above ₹50 lakh of income, is not included, so treat results at that level as a minimum.
- Tell your employer your regime choice at the start of the year so TDS on your salary matches the tax you expect.
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Income tax calculator FAQs
Under the new regime (FY 2025-26 / AY 2026-27): nil up to ₹4,00,000; 5% from ₹4,00,001-8,00,000; 10% from ₹8,00,001-12,00,000; 15% from ₹12,00,001-16,00,000; 20% from ₹16,00,001-20,00,000; 25% from ₹20,00,001-24,00,000; and 30% above ₹24,00,000. Tax slabs change with each Union Budget, so confirm against the latest official notification before relying on this for filing.
It's a rebate that brings tax liability to zero for taxpayers under a certain taxable income threshold. Under the new regime for FY 2025-26, the rebate generally applies up to ₹12,00,000 taxable income, with marginal relief tapering it just above that threshold. This calculator applies a simplified version and doesn't model every marginal-relief edge case.
It depends on how much you claim in deductions — HRA, 80C investments, home loan interest, and so on. If your eligible deductions are large, the old regime often works out cheaper; if you claim few deductions, the new regime's lower slab rates usually win. Compare both using this calculator with your actual numbers.
No. This is a simplified estimate for planning purposes only — it excludes surcharge, cess nuances for some cases, and several itemised deductions. For your actual tax filing or a regime decision with real money at stake, verify the latest slabs and consult a qualified chartered accountant.
Yes. It subtracts ₹75,000 from your gross income for the new regime and ₹50,000 for the old regime before applying the slabs, so enter your income before the standard deduction. That is why a salary of up to ₹12,75,000 shows zero tax under the new regime. Under the law, the standard deduction is available only on salary and pension income.
It adds 4% health and education cess to the tax under both regimes, so the figures shown already include cess. It does not add surcharge, which applies only when income is above ₹50 lakh. If your income is in that range, your actual tax will be higher than the estimate shown here.
Not exactly. The calculator uses the general old-regime slabs, with no tax on the first ₹2,50,000. Under the old regime, residents aged 60 to 79 have a basic exemption of ₹3,00,000 and those aged 80 or above ₹5,00,000, so the old-regime figure may be higher than they actually owe. New regime slabs are the same at every age, so that figure is unaffected.
You can, but enter your taxable profit, not turnover, and expect the result to be low. The calculator always subtracts the ₹75,000 standard deduction, which the law allows only on salary and pension. Near the ₹12 lakh mark the gap is large: ₹12,50,000 of business profit shows nil tax, though about ₹52,000 is due under the new regime. People with business income also face limits on switching regimes, so confirm your choice with a CA.
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