Old vs New Tax Regime for Home Loan Borrowers
The home-loan tax deductions — Section 24(b) interest and Section 80C principal — exist only in the old regime. But that does not mean the old regime wins. The new regime (the default) has wider slabs and a Section 87A rebate that makes income up to ₹12 lakh tax-free, so for many borrowers it produces a lower bill even after they give up the deductions. Which one wins depends entirely on your income and your total deductions. These are FY 2025-26 (AY 2026-27) figures and this is general information, not tax advice.
Why it’s a genuine contest
In the old regime your home loan can knock up to ₹3,50,000 off your taxable income (₹2 lakh interest + ₹1.5 lakh principal). That’s valuable — but the old regime taxes what’s left at its own slab rates, and its rebate only covers income up to ₹5 lakh. The new regime forgoes those deductions but taxes income at gentler rates and forgives tax entirely up to ₹12 lakh. You’re trading deductions against lower rates plus a bigger rebate.
A worked example (FY 2025-26)
Take a salaried borrower earning ₹15,00,000, with a self-occupied home loan giving the full ₹2,00,000 interest and ₹1,50,000 principal deductions, plus ₹50,000 of other 80C.
| Regime | Taxable income | Estimated tax |
|---|---|---|
| Old (with deductions) | ₹11,00,000 | ₹1,48,200 |
| New (no deductions) | ₹14,25,000 | ₹97,500 |
Even after claiming every home-loan deduction, the new regime is about ₹50,700 cheaper here, because its lower rates more than offset the deductions lost. Change the income or the deductions and the answer can flip — which is the whole point of checking.
How to choose
Run your own numbers in the home loan tax-benefit calculator, which estimates the tax under both regimes from your actual loan schedule. As a rough guide, the old regime tends to win when your total deductions (home loan + 80C + 80D + HRA, etc.) are large relative to your income; the new regime tends to win when they’re modest. Salaried taxpayers can pick the better regime each year.
Because the slabs and rebate change with each Union Budget, re-check after the next one — and confirm the final call with a chartered accountant. For the mechanics of the deductions themselves, see home loan tax benefits explained.