| Income Slab | Rate | Taxable Amount | Tax on Slab | % of Total |
|---|
The single most talked-about change is the ₹12 lakh zero-tax threshold under the new regime. This works through Section 87A: if your taxable income (after the ₹75,000 standard deduction) is ₹12 lakh or below, the tax liability is fully wiped out by a rebate of up to ₹60,000. It is not an exemption or a zero slab — it is a rebate that zeros out the calculated tax. For income slightly above ₹12 lakh, full tax applies on the excess, so there is a cliff effect that our calculator handles correctly through marginal relief.
For the old regime, nothing changed: same slabs, same ₹50,000 standard deduction, same 87A rebate of ₹12,500 up to ₹5 lakh taxable income.
| Income Slab | Rate |
|---|---|
| Up to ₹4 lakh | 0% |
| ₹4L – ₹8L | 5% |
| ₹8L – ₹12L | 10% |
| ₹12L – ₹16L | 15% |
| ₹16L – ₹20L | 20% |
| ₹20L – ₹24L | 25% |
| Above ₹24L | 30% |
| Income Slab | Rate |
|---|---|
| Up to ₹2.5 lakh | 0% |
| ₹2.5L – ₹5L | 5% |
| ₹5L – ₹10L | 20% |
| Above ₹10L | 30% |
The higher basic exemption benefits apply only under the old regime. Under the new regime, all age categories use the same slabs.
| Slab | Rate |
|---|---|
| Up to ₹3 lakh | 0% |
| ₹3L – ₹5L | 5% |
| ₹5L – ₹10L | 20% |
| Above ₹10L | 30% |
| Slab | Rate |
|---|---|
| Up to ₹5 lakh | 0% |
| ₹5L – ₹10L | 20% |
| Above ₹10L | 30% |
Section 87A provides a tax rebate — not an exemption. The distinction matters. Your tax is calculated first on the taxable income using the applicable slab rates. Then, if the taxable income falls within the threshold, the rebate wipes out the calculated tax entirely. For FY 2025-26 under the new regime:
Gross salary: ₹12,75,000
Less standard deduction: ₹75,000 → Taxable income: ₹12,00,000
Tax on ₹4L–₹8L @ 5% = ₹20,000 · Tax on ₹8L–₹12L @ 10% = ₹40,000 · Total = ₹60,000
Section 87A rebate: −₹60,000 (taxable income = ₹12L ≤ ₹12L threshold)
Net tax: ₹0 · Plus 4% cess on nil = ₹0 · Total payable: ₹0
Now notice what happens when income crosses ₹12.75 lakh (taxable income exceeds ₹12 lakh):
Gross salary: ₹13,00,000 (₹25,000 more than above)
Taxable income after std deduction: ₹12,25,000
Tax before rebate = ₹61,250 · 87A rebate = ₹0 (taxable exceeds ₹12L threshold)
Tax = ₹61,250 + cess = ₹63,700 — ₹63,700 more tax on just ₹25,000 extra income!
Under the old regime, 87A rebate is ₹12,500 if taxable income is ₹5 lakh or below. This makes gross incomes up to approximately ₹5.5–6.5 lakh effectively nil-tax under the old regime (depending on deductions claimed).
The new regime is the default from FY 2023-24 onward, and after the Budget 2025 changes, it is the better choice for most salaried individuals — particularly those with incomes up to ₹12.75 lakh who can pay zero tax. For higher incomes, the answer depends on how much you invest in eligible deductions.
The break-even point (where old regime saves more) is roughly when your total deductions under the old regime exceed approximately ₹3.75 lakh (gross income ₹15–20L). The most common deductions that make the old regime worthwhile:
If your gross income is ₹12.75 lakh or below: new regime is almost always better (zero tax).
If your gross income is above ₹12.75 lakh: add up all your eligible deductions (80C + 80D + HRA + home loan interest + NPS). If the total exceeds approximately ₹3.75–4 lakh, the old regime may be cheaper. Use our calculator to compare both exactly for your income level.
Surcharge applies only if your gross total income exceeds ₹50 lakh. All taxpayers pay a 4% Health & Education Cess on their total tax liability regardless of income.
The key difference: under the new regime, the surcharge is capped at 25% even for incomes above ₹5 crore. Under the old regime, incomes above ₹5 crore attract a 37% surcharge, making the effective peak tax rate significantly higher under the old regime for very high earners.
Marginal relief on surcharge applies — preventing scenarios where tax+surcharge exceeds the incremental income in the surcharge trigger range.