1. What changed in FY 2025-26?
The new regime got substantially more attractive in the Union Budget 2025. The headline changes:
- Higher rebate: No tax up to ₹12L taxable income (₹12.75L for salaried after the ₹75,000 standard deduction).
- Revised slabs: Seven slabs starting at ₹4L, with rates of 0%, 5%, 10%, 15%, 20%, 25%, and 30%.
- Old regime unchanged: Same slabs (₹2.5L–₹10L), same deductions (80C, 80D, HRA, etc.).
💡 The new regime is now the default. You must actively opt for the old regime to claim deductions. Salaried employees can switch every year at the time of filing.
2. New regime slabs (FY 2025-26)
| Income slab | Rate |
|---|---|
| Up to ₹4,00,000 | Nil |
| ₹4,00,001 – ₹8,00,000 | 5% |
| ₹8,00,001 – ₹12,00,000 | 10% |
| ₹12,00,001 – ₹16,00,000 | 15% |
| ₹16,00,001 – ₹20,00,000 | 20% |
| ₹20,00,001 – ₹24,00,000 | 25% |
| Above ₹24,00,000 | 30% |
3. Old regime slabs (FY 2025-26)
| Income slab | Rate |
|---|---|
| Up to ₹2,50,000 | Nil |
| ₹2,50,001 – ₹5,00,000 | 5% |
| ₹5,00,001 – ₹10,00,000 | 20% |
| Above ₹10,00,000 | 30% |
Senior citizens (60–80) get a higher basic exemption of ₹3L under the old regime; super seniors (80+) get ₹5L. The new regime has no age-based differentiation.
4. Section 87A rebate — the biggest lever
Under the new regime, if your taxable income is up to ₹12L, the entire tax is rebated. This means:
- Salaried with gross income up to ₹12.75L → zero tax (after ₹75K std. deduction).
- Non-salaried with income up to ₹12L → zero tax.
- Marginal relief prevents a tax spike just above ₹12L.
Under the old regime, the rebate is only ₹12,500 and applies only if taxable income is up to ₹5L. So the new regime is dramatically better for low-to-mid incomes.
5. Break-even: how much deduction do you need?
The old regime wins only when your total deductions are large enough to outweigh the new regime's lower slab rates. As a rough guide:
| Gross income | Break-even deductions |
|---|---|
| ₹8,00,000 | Old regime almost never wins |
| ₹12,00,000 | ~₹4.5L |
| ₹15,00,000 | ~₹4.8L |
| ₹20,00,000 | ~₹5.2L |
| ₹30,00,000 | ~₹5.5L |
| ₹50,00,000 | ~₹6L (plus surcharge differences) |
These are approximate. Use the calculator above with your exact numbers for a precise answer.
⚠️ Above ₹50L income, surcharge differences matter. The new regime caps the top surcharge at 25%, while the old regime can go up to 37%. This makes the new regime even more attractive at very high incomes.
6. A worked example
Gross salary: ₹15,00,000. Deductions: 80C ₹1.5L, 80D ₹25K, NPS ₹50K, HRA ₹1.8L, home loan interest ₹2L = total ₹6.05L.
| Item | New regime | Old regime |
|---|---|---|
| Gross income | ₹15,00,000 | ₹15,00,000 |
| Std. deduction | ₹75,000 | ₹50,000 |
| Other deductions | — | ₹6,05,000 |
| Taxable income | ₹14,25,000 | ₹8,45,000 |
| Slab tax | ₹1,33,750 | ₹1,19,000 |
| Cess (4%) | ₹5,350 | ₹4,760 |
| Total tax | ₹1,39,100 | ₹1,23,760 |
In this example, the old regime saves about ₹15,340 — because the deductions are substantial (₹6.05L) and the borrower is in the 20%–30% bracket. But if deductions were only ₹3L, the new regime would win.
7. Who should choose which regime
| Choose NEW regime if… | Choose OLD regime if… |
|---|---|
| Income under ₹12.75L (salaried) | Total deductions exceed ₹5L |
| Few deductions (under ₹4L) | Large HRA claim + home loan |
| You don't want to lock money in 80C | You max out 80C, 80D, NPS every year |
| You value simplicity | You have significant medical/education loan interest |
| Very high income (above ₹50L) | Senior citizen with higher basic exemption |
8. Common mistakes
- Assuming old regime is always better: For most low- to mid-deduction taxpayers, the new regime saves more.
- Forgetting the standard deduction: ₹75,000 new vs ₹50,000 old. This alone changes the math significantly.
- Investing just to claim 80C: If you wouldn't otherwise invest ₹1.5L in ELSS/PPF, doing it only for the deduction rarely makes sense — the tax saving is smaller than the investment.
- Ignoring surcharge: Above ₹50L, the surcharge differences (25% new vs 37% old) can swing the choice.
- Not comparing every year: As your income and deductions change, the optimal regime changes. Re-run the numbers annually.
- Choosing based on hearsay: Only the math for your specific situation matters. Use the calculator.
9. Final thoughts
For most salaried taxpayers with modest deductions, the new regime is now the better choice. For those with large deductions — especially HRA and home loan interest — the old regime still wins.
Run the numbers above with your actual income and deductions. If the difference is small (under ₹10,000), consider the new regime for simplicity. If it's significant, file accordingly. Either way, don't leave the decision to chance.