Home loan tax benefits: how Section 24 and 80C cut your tax

Under the old tax regime, a home loan is one of the largest tax breaks a salaried person can get — but the deductions come from two different sections, cover two different parts of your EMI, and have separate limits. Miss one and you leave real money on the table. Here's how the home-loan tax benefit actually splits.

Your EMI is two things

Every EMI is part interest and part principal repayment, and the tax law treats them completely differently. The interest portion is deductible under Section 24(b) (section 22 of the new Income-tax Act, 2025); the principal portion under Section 80C (section 123 of the new Income-tax Act, 2025). Early in a loan the interest dominates, so your Section 24 benefit is largest in the first years — exactly when the deduction is worth the most.

Section 24(b) — the interest deduction

How much of your interest you can actually claim depends on what you do with the property, and the three cases are not close. A home you live in is capped. A property you rent out follows different rules, allowing a loss to be set off within limits. A property still under construction is a third case again, with the pre-construction interest claimed in instalments once you move in. For the self-occupied case — the one most borrowers are in — the cap is ₹2 lakh a year, and because the early years of an EMI are mostly interest, many salaried buyers reach or approach it.

Section 80C — the principal deduction

The principal you repay counts toward your Section 80C limit of ₹1.5 lakh a year — the SAME bucket as your PF, ELSS, PPF, life insurance and children's tuition. That's the catch: if those already fill your ₹1.5 lakh, the home-loan principal adds no extra benefit. Stamp duty and registration charges paid in the year of purchase can also be claimed under 80C.

The regime catch nobody mentions

These benefits exist under the OLD tax regime. The new regime — now the default — does NOT allow the Section 24 self-occupied interest deduction or the 80C principal benefit. So a home loan can be a strong reason to compare regimes carefully: for someone with a big home-loan interest outgo plus other 80C investments, the old regime may still win despite its higher slab rates. Run both before you choose.

A home loan's tax benefit is really two benefits — up to ₹2 lakh of interest under Section 24(b) and principal within the ₹1.5 lakh 80C cap — and they only apply under the old regime. Before you file, split your EMI into interest and principal, check how much 80C room you actually have left, and compare old vs new regime with the home-loan deductions plugged in. The house is the goal; the tax break is a bonus worth claiming in full.