Income-tax calculator
Side-by-side old vs new regime, dual financial-year toggle covering both the IT Act 1961 (FY 2025-26) and the IT Act 2025 (FY 2026-27, effective 1 April 2026).

What's working
- Tax-year toggle:
- FY 2025-26 (AY 2026-27) — IT Act, 1961
- FY 2026-27 (Tax Year 2026-27) — IT Act, 2025
- Regime side-by-side: old vs new, recomputed live as you type (debounced 250ms).
- §87A rebate:
- Old regime: ₹12,500 cap, taxable ≤ ₹5,00,000
- New regime: ₹60,000 cap, taxable ≤ ₹12,00,000 + marginal relief band in the ₹12L–₹13L range so a ₹12.1L salary pays ~₹10k, not ~₹61.5k
- Slabs: new-regime slabs identical for FY 2025-26 + FY 2026-27 per Finance Act 2025 + FA 2026. Old-regime age-banded (Senior / Super Senior get higher exemption).
- Surcharge: 10 % / 15 % / 25 % bands. New regime capped at 25 % (no 37 %).
- Cess: 4 % Health & Education on (tax + surcharge).
- Deductions: Chapter VI-A (80C / 80D / 80G / 80E / 80TTA) — old regime only; Employer NPS 80CCD(2) — both regimes.
- Recommendation banner — "New regime is cheaper by ₹X,XXX for this profile" with explanation of why.
- IT Act 2025 notice when FY 2026-27 selected — §87A → §156, AY/PY → "Tax Year", TDS section renumbering (192/194 → 392/393).
Try it
/tools/tax-calculator — public, no sign-in. Useful as a shareable URL: paste your salary + 80C + TDS, see both regimes instantly.
Verified math
Income ₹15,00,000 + ₹50k interest, ₹1.5L 80C, ₹80k TDS, FY 2026-27:
| Regime | Taxable | Tax | Balance |
|---|---|---|---|
| Old | ₹13,00,000 | ₹2,10,600 | ₹1,30,600 due |
| New | ₹14,25,000 | ₹97,500 | ₹17,500 due |
New regime cheaper by ₹1,13,100 (Chapter VI-A disallowed in new regime, but lower slabs + §87A absent at this income offset that).