Old vs New Tax Regime AY 2026-27: The Breakeven Deduction
Form 16 is landing in inboxes right now — employers must issue it by 15 June 2026 — and the same stale advice is making the rounds: "claim more than ₹4.25 lakh in deductions and the old regime wins." For AY 2026-27 that number is wrong. Budget 2025 made income up to ₹12.75 lakh tax-free for salaried taxpayers under the new regime and widened every slab, so the deductions you'd now need to beat it have climbed sharply. If you earn ₹15 lakh or more, here's the real breakeven — and why you can still choose either way at filing.
Summary: what you actually need to claim
| Gross salary | New regime tax (incl. cess) | Deductions needed to beat it* | Verdict |
|---|---|---|---|
| ₹15 lakh | ₹97,500 | ~₹5.4 lakh | New wins unless you stack HRA + home loan |
| ₹20 lakh | ₹1,92,400 | ~₹7.1 lakh | New wins for almost everyone |
| ₹25 lakh | ₹3,19,800 | ~₹8.0 lakh | New wins |
| ₹50 lakh | ₹10,99,800 | ~₹8.0 lakh | New wins (watch surcharge above ₹50L taxable) |
*Deductions beyond the standard deduction — 80C, 80CCD(1B), 80D, Section 24(b) and HRA combined. New-regime tax uses the ₹75,000 standard deduction and the AY 2026-27 slabs.
Above roughly ₹25 lakh, the bar sits flat at about ₹8 lakh of deductions — because every extra rupee is taxed at 30% under both regimes, so the gap between them stops growing.
Why the ₹4.25 lakh rule of thumb is now wrong
That rule of thumb was built for FY 2024-25, when only ₹7 lakh was tax-free under the new regime. Budget 2025 changed two things at once for FY 2025-26 — the year you're filing now. The Section 87A rebate rose so income up to ₹12 lakh pays zero tax (₹12.75 lakh after the ₹75,000 standard deduction), and the slabs widened so the top 30% rate only starts above ₹24 lakh. Both moves made the new regime materially cheaper, which pushes the breakeven deduction up, not down. Anyone quoting ₹4.25 lakh today is understating what the old regime now has to clear.
The deductions that actually count
To get anywhere near ₹8 lakh, you have to stack almost everything the old regime allows:
80C, 80CCD(1B) and 80D
Section 80C caps at ₹1.5 lakh (EPF, ELSS, PPF, life premium, home-loan principal). Section 80CCD(1B) adds ₹50,000 for NPS on top of that. Section 80D covers health premiums — up to ₹25,000 for yourself and ₹50,000 for senior-citizen parents, so ₹75,000 at the high end. That is ₹2.75 lakh before you have touched rent or a home loan.
HRA under Section 10(13A)
This is the big lever for metro renters: the exemption is the least of actual HRA received, 50% of basic (metro), or rent paid minus 10% of basic. A Bengaluru renter on a ₹28 lakh package can legitimately exempt ₹2.5–3 lakh a year. It exists only in the old regime.
Section 24(b) home-loan interest
Up to ₹2 lakh a year on a self-occupied home loan. Here is the catch the "₹4.25 lakh" math glosses over: you rarely claim full HRA and full home-loan interest at the same time — you are usually either renting or living in the home you are paying off. Reaching ₹8 lakh needs both, plus NPS, plus full 80C and 80D. Very few salaried filers genuinely get there.
Real example: Salaried, ₹28 lakh CTC, Bengaluru
Priya rents in Bengaluru and claims diligently — full 80C, the ₹50,000 NPS top-up, ₹50,000 of health premiums, and ₹3 lakh of HRA. That is ₹5.5 lakh of deductions, well above the ₹4.25 lakh "switch to old" threshold she read about online.
| Item | Old regime | New regime |
|---|---|---|
| Deductions claimed | ₹6.0 lakh (incl. standard) | ₹75,000 |
| Taxable income | ₹22.0 lakh | ₹27.25 lakh |
| Tax + 4% cess | ₹4,91,400 | ₹4,13,400 |
| Annual saving | — | ₹78,000 |
Even with ₹5.5 lakh of deductions, Priya is ₹78,000 a year better off in the new regime — because her breakeven is ₹8 lakh and she is nowhere near it. The lesson for anyone at ₹25 lakh-plus: "I claim a lot of deductions" is no longer enough on its own.
Can you still switch regimes? Yes — for now
This is what makes June the moment to act. Salaried taxpayers with no business income choose their regime fresh every year, right inside the return — there is no Form 10-IEA to file and no lifetime cap. Whatever regime your employer assumed when it deducted TDS is irrelevant; you reconcile it when you file. (Form 10-IEA and the once-in-a-lifetime restriction on switching back apply only to people with business or professional income filing ITR-3 or ITR-4.)
The catch: this choice is locked to the filing deadline under Section 139(1). Miss 31 July 2026 and file a belated return under Section 139(4), and you are forced into the new regime — you lose the option to pick old at all. So if the old regime is genuinely cheaper for you, filing on time is not just about dodging the ₹5,000 late fee; it is the only way to keep the cheaper option open.
What to do this week
- Wait for Form 16 (due 15 June 2026), then download your AIS and Form 26AS from the income-tax portal and reconcile the figures before you file.
- Compute tax under both regimes at your actual deductions — use the breakeven above as a gut check: ₹5.4 lakh at ₹15 lakh, ₹8 lakh at ₹25 lakh and above.
- If you are salaried with no business income, pick either regime directly inside ITR-1 or ITR-2 — no Form 10-IEA, and your employer's TDS regime does not lock you in.
- File before 31 July 2026. If your employer deducted under the wrong regime for you, the ITR squares it up — you either get a refund or pay the small balance.
The bottom line
For AY 2026-27 the new regime is the default winner for most ₹15 lakh-plus earners, and the bar to beat it has quietly moved to ₹5–8 lakh of deductions. Run your own numbers before you tick the box — switching is free this year, but only until you file.
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