Income Tax
Old vs New Tax Regime (FY 2025-26): Which One Saves You More Tax?
"Should I choose the old or new tax regime?" is the single most-asked income tax question in India today — and FY 2025-26 (AY 2026-27) made it more important than ever. The Budget made the new regime dramatically more attractive: zero tax up to ₹12 lakh taxable income (effectively ₹12.75 lakh for salaried with the standard deduction). But "new is the default" does not mean "new is better for you." For some taxpayers — especially high rent payers and home-loan borrowers — the old regime still wins by tens of thousands. This guide gives you the slabs, the deduction differences, real worked examples, the break-even rules, and exactly how to choose and switch.
What is a tax regime?
India runs two parallel income tax systems. The old regime has higher tax rates but lets you reduce your taxable income with a long list of deductions and exemptions (80C, 80D, HRA, home-loan interest and more). The new regime has lower rates and a higher basic exemption, but strips away almost all of those deductions. You pick one each year — and the right choice depends entirely on how many deductions you actually claim.
New regime slabs (FY 2025-26)
| Income | Rate |
|---|---|
| Up to ₹4,00,000 | Nil |
| ₹4–8 lakh | 5% |
| ₹8–12 lakh | 10% |
| ₹12–16 lakh | 15% |
| ₹16–20 lakh | 20% |
| ₹20–24 lakh | 25% |
| Above ₹24 lakh | 30% |
Plus a ₹75,000 standard deduction for salaried taxpayers, and the Section 87A rebate that makes tax zero up to ₹12 lakh taxable income (with marginal relief just above it). Employer NPS contribution under 80CCD(2) is still allowed in the new regime — one of the very few deductions that survives.
Old regime slabs & the deductions that live here
| Income | Rate |
|---|---|
| Up to ₹2,50,000 | Nil |
| ₹2.5–5 lakh | 5% |
| ₹5–10 lakh | 20% |
| Above ₹10 lakh | 30% |
Standard deduction is ₹50,000, and the 87A rebate makes tax zero only up to ₹5 lakh. But the old regime's superpower is its deductions, which you keep:
- Section 80C — up to ₹1.5 lakh (PPF, ELSS, life insurance, home-loan principal, EPF). See our 80C guide.
- Section 80D — health insurance, up to ₹25,000 (₹50,000 for senior-citizen parents).
- HRA exemption — often the biggest break for renters. Calculate it with our HRA calculator.
- Home-loan interest — up to ₹2 lakh under Section 24(b).
- NPS 80CCD(1B) — an extra ₹50,000.
- 80E (education loan interest), 80G (donations), and more.
Old vs new — deductions at a glance
| Deduction | Old Regime | New Regime |
|---|---|---|
| Standard deduction | ₹50,000 | ₹75,000 |
| 80C (PPF, ELSS, etc.) | Yes | No |
| 80D health insurance | Yes | No |
| HRA exemption | Yes | No |
| Home-loan interest (self-occupied) | Yes | No |
| Employer NPS 80CCD(2) | Yes | Yes |
The break-even rule of thumb
The old regime wins only when your total deductions are large enough to offset the new regime's lower rates. Quick guide for salaried taxpayers:
- Income ≤ ₹12.75 lakh: New regime wins almost always — your tax is zero thanks to the 87A rebate.
- ₹13–16 lakh: Old wins only with very heavy deductions (₹4 lakh+ including HRA and home loan).
- ₹16 lakh+: Old can win if deductions exceed roughly ₹4.5–5.5 lakh — typically people with big HRA and home-loan interest and full 80C/80D.
Worked example 1: ₹12 lakh salary
Under the new regime, taxable income after the ₹75,000 standard deduction is well within the rebate zone — tax is ₹0. To beat that under the old regime you'd need to wipe out tax entirely with deductions, which is nearly impossible at this income. New regime wins, hands down.
Worked example 2: ₹18 lakh salary
- New regime: taxable ₹17.25 lakh → tax ≈ ₹1,76,800 (with cess)
- Old regime with ₹1.5L 80C + ₹25k 80D + ₹2L home-loan interest + ₹50k standard deduction: taxable ₹13.75 lakh → tax ≈ ₹2,34,000
- Winner: New regime, saving ~₹57,000 — despite claiming ₹3.75 lakh of deductions!
This surprises people. After the 2025 slab cuts, the new regime is hard to beat without HRA. Now add ₹2.5 lakh of HRA exemption to the same example, and the old regime's taxable income drops to ₹11.25 lakh — and it starts winning. HRA is often the deciding factor.
Who should still pick the old regime?
- High rent payers in metros with large HRA exemption.
- Home-loan borrowers claiming the full ₹2 lakh interest plus 80C principal.
- Those stacking NPS (80CCD(1B)), senior-citizen parents' health premiums (80D up to ₹1 lakh), and education-loan interest (80E).
How to switch regimes
Salaried taxpayers can switch between old and new every single year simply by choosing at the time of filing — no form needed. Business and professional income earners have less flexibility: to opt for the old regime you must file Form 10-IEA before the due date, and once you switch back to new, you generally can't return to old again. Choose carefully if you run a business.
Frequently asked questions
Which regime is the default? The new regime is now the default. If you do nothing, you'll be taxed under it.
Can I claim 80C in the new regime? No — 80C, 80D and HRA are not available in the new regime. Only the standard deduction and employer NPS (80CCD(2)) survive.
Does the new regime really mean zero tax up to ₹12 lakh? Yes, for FY 2025-26, the 87A rebate makes tax nil up to ₹12 lakh taxable income (₹12.75 lakh gross for salaried after standard deduction).
I have a home loan — should I stay on old? Often yes, especially combined with HRA — but always compute both, because at lower incomes the new regime's zero-tax band can still win.
Don't guess — compute
The only correct method is to calculate your tax under both regimes and compare. It takes 60 seconds on our free Income Tax Calculator. And when you file through Taxwapsi, the regime comparison is built into the service — our experts run both and pick the one that saves you the most: expert ITR filing from ₹1,999. Explore more guides on our ITR hub.