Section 24(b) home loan interest: Rs 2 lakh cap on self-occupied and the 5-year construction clock

Buying a home with a loan remains one of the few large tax-advantaged decisions still open to a salaried Indian taxpayer in FY 2025-26. Section 24(b) of the Income-tax Act, 1961 lets you deduct up to Rs 2,00,000 of interest paid on a housing loan for a self-occupied property in any financial year — but only if you stay in the old tax regime and only if construction is wrapped up within five years from the end of the FY in which the loan was taken. Miss that deadline and the deduction collapses to Rs 30,000, a Rs 1,70,000 swing that costs a 30% slab taxpayer Rs 53,040 in extra tax (after the 4% cess).

The rules were last meaningfully amended by the Finance Act, 2017, which inserted Section 71(3A) capping the loss from house property that can be set off against salary at Rs 2,00,000 per year. This article walks through the section as it reads today, models the deduction on a realistic Rs 60,00,000 loan, and lists the four mistakes that show up most often in CPC intimations.

What the Section Says

Section 24 lists the only two deductions allowable from "Income from House Property" after the annual value has been computed under Section 23. Clause (a) gives a flat standard deduction of 30% of net annual value. Clause (b) allows deduction of interest payable on capital borrowed for the acquisition, construction, repair, renewal or reconstruction of the property.

The first proviso to Section 24(b) limits the deduction for a self-occupied property (one falling under Section 23(2)) to Rs 2,00,000 where the borrowed capital is used for acquisition or construction, the loan was taken on or after 1 April 1999, and the acquisition or construction is completed within five years from the end of the financial year in which the capital was borrowed. If any of these three conditions fail, the deduction shrinks to Rs 30,000. For repairs or renewals on a self-occupied property, the cap is Rs 30,000 regardless of the loan date.

Pre-construction interest — interest paid in the years before the property is ready — does not vanish. The explanation to Section 24 directs the assessee to claim it in five equal annual instalments starting from the previous year in which construction is completed. So if you took a loan in April 2022 and the house is ready in March 2026, the interest paid from April 2022 to 31 March 2025 is bundled and divided by five, and one-fifth is claimable each year from FY 2025-26 to FY 2029-30, stacked on top of current-year interest. The overall Rs 2,00,000 ceiling for self-occupied property still applies.

For a let-out property, there is no monetary ceiling inside Section 24(b) — the entire interest paid is deductible. However, Section 71(3A) restricts the loss from house property that can be set off against salary, business or other heads to Rs 2,00,000 per year. The unabsorbed loss carries forward for eight assessment years under Section 71B and can only be set off against future house-property income. The bare text of Section 24 is published at incometaxindia.gov.in and the authenticated Act on indiacode.nic.in.

The new regime under Section 115BAC, default since the Finance Act, 2023 and recalibrated by the Finance Act, 2025, disallows Section 24(b) for self-occupied property. It permits interest deduction only for a let-out property, and even then the resulting loss cannot be set off against any other head. Anyone with a sizeable home-loan interest on a self-occupied flat must run the old-vs-new arithmetic before filing — use the old vs new regime calculator to compare.

Worked Example

Consider Priya, a 36-year-old marketing manager in Pune with gross salary of Rs 22,00,000 in FY 2025-26. She booked an under-construction flat in May 2022 for Rs 95,00,000 and took a Rs 60,00,000 home loan at 8.5% for 20 years. Possession came on 28 February 2026, inside the five-year window measured from 31 March 2023.

Her interest schedule, calculated on a standard reducing-balance basis, looks like this:

Priya registers in March 2026 and moves in. Her Section 24(b) claim for FY 2025-26 is current-year interest of Rs 4,98,000 plus one-fifth of Rs 14,90,000 pre-construction interest (Rs 2,98,000), totalling Rs 7,96,000. Because the flat is self-occupied, the deduction is capped at Rs 2,00,000. The balance Rs 5,96,000 is not carried forward; it is simply lost.

If Priya had instead let the flat out at Rs 28,000 a month, the arithmetic flips. Annual rent of Rs 3,36,000 minus municipal taxes of Rs 12,000 gives net annual value of Rs 3,24,000. After the 30% standard deduction of Rs 97,200, income before interest is Rs 2,26,800. The full Rs 7,96,000 of interest produces a house-property loss of Rs 5,69,200, of which only Rs 2,00,000 can be set off against salary in FY 2025-26 under Section 71(3A); the remaining Rs 3,69,200 carries forward for eight assessment years under Section 71B against future rental income.

Her tax saving in the self-occupied case, under the old regime at the 30% slab plus 4% cess, is Rs 2,00,000 × 31.2% = Rs 62,400. Under the new regime the same Rs 2,00,000 yields zero. Run the numbers for your own salary on the income tax calculator before locking in a regime, and use the capital gains calculator to model the eventual sale.

Common Mistakes

Four errors account for the bulk of Section 24(b) disallowances flagged by the Centralised Processing Centre in Bengaluru and by reassessment notices issued under Section 148. None of them are subtle — they all stem from misreading the statute.

Mistake 1: Claiming Rs 2,00,000 even though construction crossed five years. The five-year clock starts from the end of the financial year in which the loan was taken, not the date of disbursement. A loan taken in February 2020 must see construction completed by 31 March 2025; otherwise the cap falls to Rs 30,000 from FY 2025-26 onwards. Possession-letter dates slipping into April rather than March can cost Rs 1,70,000 of allowable interest, and the assessing officer cross-checks completion certificates against builder filings with the local RERA authority.

Mistake 2: Claiming Section 24(b) on a self-occupied property under the new regime. Section 115BAC(2) bars the deduction. The ITR-2 utility will not stop you from entering an amount, but the CPC's intimation under Section 143(1) will reverse it. See our earlier explainer on intimations versus scrutiny notices. The fix is to opt out of the new regime by filing Form 10-IEA before the ITR due date.

Mistake 3: Claiming pre-construction interest in one shot. The explanation to Section 24 is explicit: it must be deducted in five equal annual instalments starting from the year of completion. Bundling it inflates the first-year claim beyond Rs 2,00,000 and triggers an arithmetic disallowance, while the remaining four instalments are then lost.

Mistake 4: Setting off house-property loss above Rs 2,00,000 against salary. Even for a let-out property where full interest is allowable, Section 71(3A) limits inter-head set-off to Rs 2,00,000. The balance carries forward for eight years against future house-property income only. Taxpayers with two let-out properties and aggregate interest of Rs 12-14 lakh routinely under-report carry-forward and lose the eligible loss. See also our piece on Section 148 reassessment time limits.

FAQ

Is the Rs 2,00,000 cap per property or per assessee?

The cap is per assessee, not per property. If you have two self-occupied properties (permitted since the Finance Act, 2019 amendment to Section 23(4)), the aggregate Section 24(b) deduction is still capped at Rs 2,00,000. For a let-out property the interest is uncapped inside Section 24(b), but Section 71(3A) restricts the loss set-off to Rs 2,00,000 across all house properties.

Can both spouses claim Rs 2,00,000 each on the same loan?

Yes, provided both are co-owners and co-borrowers, and both contribute to the EMIs in proportion to their ownership share. Each can claim Rs 2,00,000 under Section 24(b) and Rs 1,50,000 under Section 80C, doubling the household benefit. The e-filing portal at incometax.gov.in accepts both ITRs independently, but each spouse must keep an interest certificate from the bank in their own name.

Does the five-year construction deadline apply to ready-to-move-in flats?

No. The five-year condition in the first proviso applies only where the loan is taken for the construction of the property. For a loan taken to acquire a fully constructed, ready-to-move-in flat, the only condition is that the property is acquired with the borrowed funds; the Rs 2,00,000 cap applies regardless of how long the bank takes to disburse or how long registration takes.

Is interest on a top-up home loan deductible under Section 24(b)?

Only if the top-up is used for the acquisition, construction, repair, renewal or reconstruction of the same residential property. The bank's sanction letter and the end-use certificate must record this. Top-ups used for car purchase, marriage expenses or business working capital do not qualify, even if secured against the same property.

Can pre-construction interest exceed Rs 2,00,000 once spread?

The pre-construction interest is bundled and divided by five, but each annual one-fifth instalment plus that year's current interest still has to fit inside the Rs 2,00,000 self-occupied cap. So if your one-fifth instalment is Rs 2,98,000 and your current-year interest is Rs 4,98,000, you cannot claim Rs 7,96,000 — you claim Rs 2,00,000 and the balance lapses. Plan the regime choice and possession timing carefully; modelling on the new regime tax calculator shows when the let-out conversion saves more than self-occupation.

What happens to Section 24(b) if I sell the property within five years of possession?

Section 24(b) itself has no clawback on sale. However, Section 80C(5)(b) reverses the principal-repayment deduction claimed in earlier years if the property is sold within five years of the end of the financial year in which possession was taken — the reversed amount is added back to the income of the year of sale. The interest deduction under Section 24(b) is safe; only the Section 80C principal portion comes back.

Does Section 24(b) interact with Section 80EEA or 80EE?

Yes. Section 80EEA (for affordable-housing loans sanctioned between 1 April 2019 and 31 March 2022) gives an additional Rs 1,50,000 over and above Section 24(b)'s Rs 2,00,000. Section 80EE (sanctioned in FY 2016-17 for loans up to Rs 35 lakh on properties up to Rs 50 lakh) gives Rs 50,000 extra. Both require the Section 24(b) cap to be exhausted first, and neither is available under the new regime.