Old vs New Tax Regime FY 2025-26: break-even income, ₹75,000 standard deduction, and when to switch

For FY 2025-26 (AY 2026-27), the new tax regime wins for almost every salaried employee earning up to ₹12 lakh — Section 87A rebate makes the tax ₹0 on a pure-salary ₹12 lakh income — and it stays ahead at ₹20 lakh and ₹30 lakh unless your old-regime deductions cross roughly ₹7–8 lakh. The decisive change is Finance Act 2025: new-regime slabs widened to 0–4L / 4–8L / 8–12L / 12–16L / 16–20L / 20–24L / above 24L, the standard deduction stayed at ₹75,000 in the new regime (₹50,000 in the old), and the Section 87A rebate jumped to ₹60,000 for total income up to ₹12 lakh. The old regime still wins for high-deduction filers — big HRA, home-loan interest, and a full Chapter VI-A stack — but the break-even deduction threshold is higher than most calculators from last year still show.

The slabs that decide everything (FY 2025-26)

Both regimes carry a 4% health & education cess on tax. Standard deduction: ₹75,000 in the new regime (s.16(ia) read with s.115BAC), ₹50,000 in the old. Section 87A rebate: ₹60,000 in the new regime for total income up to ₹12,00,000; ₹12,500 in the old regime for taxable income up to ₹5,00,000.

The break-even table: how many deductions the old regime needs

"Break-even deductions" is the total Chapter VI-A + HRA + other old-regime deductions required for the old regime to tie the new regime's tax (including cess) on the same gross salary. Below the threshold, new wins; above it, old wins.

The shape of this table is the real story: the break-even threshold dips at ₹15 lakh (₹5.44L) after peaking at ₹12 lakh (₹6.50L) because the ₹12 lakh point is the 87A sweet spot where the new regime pays nothing. Above ₹12 lakh, the new regime's ₹0 is gone, so the deduction needed for old to win falls, then rises again as slab rates climb.

Worked example: Rohan earns ₹15 lakh

Persona: Rohan, salaried resident individual, FY 2025-26 (AY 2026-27).

Facts:

• Gross salary ₹15,00,000; only salary income


• Claims in the old regime: 80C ₹1,50,000 (EPF + ELSS), HRA exemption ₹1,20,000, NPS s.80CCD(1B) ₹50,000 — total ₹3,20,000


• New regime: none of the three is available; only standard deduction ₹75,000

New regime computation

Old regime computation

Result: new regime wins by ₹60,060 (₹97,500 vs ₹1,57,560). Rohan lost ₹3,20,000 of deductions to the new regime and still came out ahead — because the widened slabs and the ₹75,000 standard deduction more than compensated. For old to win at ₹15 lakh, his deductions would need to reach ≈ ₹5,44,000, not the ₹3,20,000 he has. Reproduce it in the Old vs New Regime Calculator.

What changed FY 2025-26: before/after diff

The FA 2025 changes moved the new regime from "better in the middle" to "better by default." The ₹12 lakh zero-tax headline — ₹12,00,000 gross minus ₹75,000 standard deduction = ₹11,25,000 taxable, with rebate ₹52,500 wiped by the ₹60,000 cap — is the single biggest reason the old regime's customer base shrank for FY 2025-26.

Who should still choose the old regime

The old regime wins only when legitimate old-regime deductions exceed the break-even threshold. Realistic winners:

• High HRA in a metro with rent receipts and a landlord PAN (where rent exceeds ₹1,00,000/year)
• A large home loan with ₹2,00,000 of interest under s.24(b) on a self-occupied property
• Maxed 80C + 80D + NPS 80CCD(1B) — ₹1.5L + ₹50k–₹1L + ₹50k
• Disability or health-heavy families relying on 80DD/80U/80D

If your stack falls below the threshold in the table, the new regime is the arithmetic winner — and it is the default regime, so doing nothing usually lands you there. Old regime requires a positive election at filing (or employer declaration for TDS).

See Also

• Property Capital Gains: Indexation vs 12.5% Tax in 2026
• Section 148A Reassessment: Time Limits & Valid Notice Rules
• Capital Gains on Property Sale AY 2026-27: 12.5% or 20%?

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