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Income Tax Calculator — Old vs New Regime
Enter your salary and deductions to see your income tax under both the old and new regime for FY 2025-26, including the 87A rebate and 4% cess — and which regime leaves you paying less.
Your income
Deductions (old regime)
| Regime | Taxable | Tax + cess | Eff. rate |
|---|
How it's calculated
Under the new regime a ₹75,000 standard deduction is applied and the slab rates run from nil up to ₹4 lakh through to 30% above ₹24 lakh; a section 87A rebate makes the tax nil up to ₹12 lakh of taxable income, with marginal relief just above that. Under the old regime a ₹50,000 standard deduction plus your 80C, 80D, HRA, home-loan interest, NPS and other eligible deductions are subtracted first, then the older slabs apply with an age-based basic exemption; here the 87A rebate makes tax nil up to ₹5 lakh taxable. A 4% health and education cess is added to both, and the calculator shows which comes out lower.
FY 2025-26 slabs (also applying to FY 2026-27). Surcharge applies above ₹50 lakh; its marginal relief is approximate here. This is an indicative estimate for planning, not tax advice — confirm with a tax professional.