Short answer
New regime (section 202): nil to ₹4 lakh, 5% to ₹8 lakh, 10% to ₹12 lakh, 15% to ₹16 lakh, 20% to ₹20 lakh, 25% to ₹24 lakh, 30% above; ₹75,000 standard deduction; rebate up to ₹60,000 to ₹12 lakh with marginal relief. Old regime (Finance Act, 2026): basic exemption ₹2.5 lakh (₹3 lakh at 60 to 79, ₹5 lakh at 80+), 5% to ₹5 lakh, 20% to ₹10 lakh, 30% above; ₹50,000 standard deduction; rebate up to ₹12,500 to ₹5 lakh. Both add 4% cess.
Slab tables used
| Taxable income | New regime | Old regime (below 60) |
|---|---|---|
| Up to ₹2,50,000 | Nil | Nil |
| ₹2,50,001 to ₹4,00,000 | Nil | 5% |
| ₹4,00,001 to ₹5,00,000 | 5% | 5% |
| ₹5,00,001 to ₹8,00,000 | 5% | 20% |
| ₹8,00,001 to ₹10,00,000 | 10% | 20% |
| ₹10,00,001 to ₹12,00,000 | 10% | 30% |
| ₹12,00,001 to ₹16,00,000 | 15% | 30% |
| ₹16,00,001 to ₹20,00,000 | 20% | 30% |
| ₹20,00,001 to ₹24,00,000 | 25% | 30% |
| Above ₹24,00,000 | 30% | 30% |
Worked example: ₹15 lakh salary
| New regime | Old regime | |
|---|---|---|
| Gross salary | ₹15,00,000 | ₹15,00,000 |
| Standard deduction | ₹75,000 | ₹50,000 |
| HRA exemption, PT, deductions | Not allowed | ₹1,20,000 + ₹2,400 + ₹1,75,000 |
| Taxable income | ₹14,25,000 | ₹11,52,600 |
| Slab tax | ₹93,750 | ₹1,58,280 |
| Cess 4% | ₹3,750 | ₹6,331 |
| Total tax | ₹97,500 | ₹1,64,611 |
The new regime saves ₹67,111 here. The old regime wins only with large claims; see new vs old regime for TDS.
What the calculator leaves out
- Surcharge (income above ₹50 lakh) and special-rate income such as capital gains.
- Non-residents, who do not get the rebate.
- Limits on individual old-regime deductions: enter amounts you are entitled to.
For employers, FundRaksha HR runs this calculation for every employee each month and deducts TDS on the chosen regime. Monthly figures: TDS on salary calculator.