Old vs New Tax Regime: The Exact Breakeven Formula for Salaried Indians

The Tax Regime Crossroads

The Indian income tax framework now offers two distinct regimes:

1. The New Tax Regime (Default): Wider tax slabs, lower base rates, ₹75,000 standard deduction, but zero deductions for HRA, 80C, 80D, or home loan interest.

2. The Old Tax Regime: Higher tax slab rates, but full access to tax deductions (HRA, 80C up to ₹1.5L, 80D health insurance up to ₹75K, Section 24b home loan interest up to ₹2L, and NPS 80CCD(1B) up to ₹50K).

The Breakeven Formula

| Gross Annual CTC | Deduction Breakeven Required for Old Regime to Win |

|---|---|

| ₹10 Lakhs | Need > ₹2,50,000 in total deductions |

| ₹15 Lakhs | Need > ₹3,75,000 in total deductions |

| ₹25 Lakhs | Need > ₹4,25,000 in total deductions |

If you live in rented accommodation in a metro and pay high rent (generating large HRA claims) alongside a home loan, the Old Regime usually wins. If you don't claim high HRA or home loan interest, the New Regime is overwhelmingly more tax-efficient and paperwork-free.