New vs Old Tax Regime — Which to Choose in 2026

After Budget 2025, the new regime is default with zero tax up to ₹12 lakh. Here is the definitive comparison at every income level.

1.Quick answer by income level

**₹0-12 lakh**: New regime wins (zero tax). **₹12-15 lakh**: New regime wins for most (tax ₹45,000-1,30,000 vs old regime ₹75,000-2,00,000 even with 80C). **₹15-20 lakh**: New regime wins unless total deductions > ₹4 lakh. **₹20-30 lakh**: Depends on deduction profile — run the calculator. **₹30 lakh+**: Old regime can win if deductions > ₹5 lakh (home loan + HRA + 80C + NPS). For 80% of salaried Indians, the new regime is better in 2026.

2.Detailed comparison at ₹20 lakh CTC

**New regime**: Taxable = ₹20L − ₹0.75L = ₹19.25L. Tax = ₹20K + ₹30K + ₹30K + ₹60K + ₹1,27,500 = ₹2,67,500. + cess = **₹2,78,200**. **Old regime with moderate deductions** (80C ₹1.5L, 80D ₹25K, NPS ₹50K, HRA ₹2.4L): Taxable = ₹20L − ₹0.5L (standard) − ₹1.5L − ₹0.25L − ₹0.5L − ₹2.4L = ₹14.85L. Tax (old slabs) = **₹2,47,000** + cess = ₹2,56,880. Old regime saves **₹21,320** — but only if you actually make all those investments and pay that much rent.

3.The hidden cost of the old regime

To save ₹21,320 in tax under the old regime, you need to: invest ₹1.5 lakh in 80C instruments (money locked for 3-15 years), pay ₹25,000 for health insurance (which you should have anyway), invest ₹50,000 in NPS (locked until 60), and actually pay ₹20,000/month in rent. The opportunity cost of these locked investments may exceed the ₹21,320 tax saving. The new regime gives you freedom to invest wherever you want, however you want.

4.Key takeaway

For most salaried employees in 2026, the new regime is better. The exceptions are high-income individuals (₹20L+) with home loans, high rent, and full utilization of 80C/80D/NPS. Don't switch regimes blindly — use our income tax calculator to compare both with your actual deduction numbers. You can switch between regimes every year.