You've heard the rule a hundred times: “The old regime wins if your deductions cross ₹3.75 lakh.”It's in every comparison, every reel, even Google's own answer box. There's just one problem — for ITR 2026, it's wrong.
Budget 2025 quietly rewrote the math: a bigger standard deduction, a ₹12 lakh rebate, and wider slabs made the new regime so much stronger that the real breakeven has moved to ₹5.4–8 lakh of deductions— and almost nobody gets there. Here's the actual number for your income, and how to know in sixty seconds which regime keeps more of your money.
Why the new regime now wins for almost everyone
Three changes stacked up in your favour. The new regime gives a ₹75,000 standard deduction (the old one gives ₹50,000). Its slabs are wider and lower, running 0/5/10/15/20/25/30% across ₹4-lakh bands up to ₹24 lakh. And the killer: the Section 87A rebate now zeroes out tax on income up to ₹12 lakh, versus just ₹5 lakh under the old regime.
That last one decides it for most people. If your income is up to about ₹12.75 lakh, the new regime taxes you nothing— and there is no deduction stack on earth that beats zero. The old regime can't win a race that starts at ₹0.
₹0
Your tax under the new regime up to ~₹12.75 lakh income — which the old regime mathematically cannot beat.
The real breakeven, by income
Above ₹12.75 lakh, the new regime starts charging tax — and only then can the old regime catch up, but only if your deductions are big enough. Here's the actual deduction you'd need for the old regime to win, calculated on the FY 2026-27 slabs:
| Your income | New regime tax | Old wins only if deductions exceed |
|---|---|---|
| Up to ₹12.75 lakh | ₹0 | New always wins — no deduction beats zero tax |
| ₹15 lakh | ₹97,500 | ₹5.4 lakh |
| ₹20 lakh | ₹1,92,400 | ₹7.1 lakh |
| ₹25 lakh | ₹3,19,800 | ₹8.0 lakh |
| ₹50 lakh | ₹10,99,800 | ₹8.0 lakh |
Read that ₹15 lakh row again: you'd need ₹5.4 lakhof deductions for the old regime to win. Full 80C is ₹1.5 lakh. Add ₹25,000 of 80D and you're at ₹1.75 lakh — nowhere close. You'd need a hefty home-loan interest claim and big HRA on top just to reach the line.
The old regime doesn't lose by a little anymore. For most salaried people in 2026, it isn't even a contest.
Who should still pick the old regime
It's not dead — it just needs a serious deduction stack. The old regime still wins for people who: claim the full ₹2 lakh home-loan interest under Section 24(b), max 80C at ₹1.5 lakh, draw big HRA living on rent in a metro, add ₹50,000 NPS under 80CCD(1B), and pay substantial 80D health premiums for themselves and parents. Stack those and you can clear ₹6–8 lakh — at which point, at a high income, the old regime pulls ahead.
What this means for your ITR
Honest take: for the overwhelming majority of salaried readers, the answer in 2026 is the new regime — and if your income is under ₹12.75 lakh, it's not even worth a second thought. The people who should actually sit down and compare are homeowners with a live home loan and big metro rent; everyone else is mostly choosing between “new” and “new, but I did extra paperwork to pay the same.”
But your numbers are your numbers — so don't take a rule of thumb's word for it. Run your exact salary and deductions through the Old vs New Regime calculator and see your real tax under both, side by side. And if you haven't yet, make sure you're filing the right ITR form first — the regime only matters once you're on the correct return.
Tax figures are for AY 2026-27 (FY 2025-26) using the slabs in force after Budget 2026, computed before surcharge and marginal relief. Breakeven deductions are indicative and assume the standard-deduction difference is already accounted for. Confirm your own case on incometax.gov.in or with a CA. General information, not tax advice.