Section 24(b) Home Loan Interest: Rs 2 Lakh Self-Occupied Cap and the Carry-Forward Trap

Most home buyers know that Section 24(b) of the Income Tax Act 1961 lets them claim home loan interest as a deduction. Far fewer realise that the way this deduction interacts with Section 71(3A) can quietly cost them Rs 30,000 to Rs 60,000 in unrecovered tax shields each year, especially when they switch between the old and new regimes. As of FY 2025-26 (AY 2026-27), the rules are unforgiving: Rs 2 lakh hard ceiling for self-occupied property, an Rs 2 lakh annual cap on the loss that can be set off against salary or business income, and an eight assessment year carry-forward window that most taxpayers forget to track in their returns.

This Morning Tax Tip walks through the bare statute, a worked example for a Rs 60 lakh home loan at 8.5%, the mistakes CBDT scrutiny flags most often, and answers to questions Oquilia readers send us regularly.

What the Section Says

Section 24 of the Income-tax Act 1961 covers two deductions from "Income from House Property": a 30% standard deduction under Section 24(a) and an interest deduction under Section 24(b). The interest leg is the consequential one, and the statutory text draws three separate ceilings depending on the use of the property.

For a self-occupied house (one occupied by the owner, with annual value treated as nil under Section 23(2)), the interest paid on a loan taken for purchase or construction is deductible up to Rs 2,00,000 per assessment year. This cap was raised from Rs 1,50,000 by the Finance (No. 2) Act 2014 and has remained unchanged through every Budget since, including Finance Act 2025. For a loan taken for repairs, renewal or reconstruction of any property, the cap drops to Rs 30,000 under the third proviso to Section 24.

For a let-out property (or a property deemed to be let-out, under the new regime applied to a second house from FY 2019-20 onwards), the interest deduction is uncapped at the head level. You can deduct every rupee of interest you pay against the rental income, and if the result is a loss, that loss falls into the inter-head set-off rules of Sections 71 and 71(3A).

This is where the Rs 2 lakh ceiling reappears. Section 71(3A), inserted by Finance Act 2017 with effect from AY 2018-19, restricts the set-off of "loss under the head Income from House Property" against income under any other head to Rs 2,00,000 per assessment year. Any excess does not vanish - it is carried forward under Section 71B for eight assessment years and can be set off only against future income under the same head, namely house property.

Finally, the regime overlay matters. Under the default new tax regime in Section 115BAC(1A), as amended by Finance Act 2025, the Section 24(b) deduction for self-occupied property is not allowed. For let-out property the interest deduction continues to be available under the new regime, but Section 115BAC(2)(i) clarifies that the resulting loss from house property cannot be set off against income under any other head and cannot be carried forward under the new regime either. That last point is the silent killer most taxpayers miss when they tick the Form 10-IE default box.

Worked Example

Meet Priya, a 38-year-old salaried professional based in Pune. Her FY 2025-26 numbers look like this: gross salary Rs 24,00,000, standard deduction Rs 75,000 (raised by Finance Act 2024 for the new regime; Rs 50,000 in the old regime), no other deductions besides the housing loan. She bought a 2 BHK flat in March 2024 for Rs 75,00,000 with a Rs 60,00,000 home loan at 8.5% per annum from a scheduled commercial bank, EMI Rs 52,121 per month over a 20-year tenor.

The interest component on that loan in FY 2025-26 (the second full year of repayment) works out to roughly Rs 5,02,000. The principal component, eligible separately under Section 80C, is roughly Rs 1,23,500. Now compare the two regimes side by side, assuming the flat is self-occupied:

Even with Rs 2 lakh of Section 24(b) and Rs 1.5 lakh of Section 80C in play, the new regime still wins for Priya by Rs 85,800. The reason is the Finance Act 2025 widening of new-regime slabs: there is now a 5% slab from Rs 4 to Rs 8 lakh, 10% from Rs 8 to Rs 12 lakh, 15% from Rs 12 to Rs 16 lakh, 20% from Rs 16 to Rs 20 lakh, 25% from Rs 20 to Rs 24 lakh, and 30% above. Run the same scenario with Priya's flat let out at Rs 35,000 monthly rent, and the picture flips. Annual rent of Rs 4,20,000, less municipal taxes of Rs 12,000 and 30% standard deduction of Rs 1,22,400, yields net annual value of Rs 2,85,600. Subtracting Rs 5,02,000 of interest gives a house property loss of Rs 2,16,400.

In the old regime, Rs 2,00,000 of that loss reduces salary income (Section 71(3A) ceiling), and the residual Rs 16,400 carries forward to AY 2027-28 under Section 71B. Crunched through the old-regime slabs, Priya saves around Rs 60,000. In the new regime, the entire Rs 2,16,400 loss is stranded inside the house property head - it cannot offset salary, and Section 115BAC(2)(i) bars its carry forward. The Section 24(b) deduction technically applied, but produced zero monetary benefit. Use the old vs new regime calculator to test your own numbers before locking in Form 10-IE.

Common Mistakes

Four patterns appear repeatedly in the CIT(A) orders the CBDT publishes each quarter, and in the queries Oquilia readers send us. Each of these can swing your final tax outflow by Rs 20,000 to Rs 80,000.

1. Claiming Section 24(b) for the period before construction completed. The first proviso to Section 24(b) treats interest paid during the construction phase as a separate basket: it is deductible in five equal annual instalments starting from the financial year in which construction is completed. A taxpayer who took possession in November 2025 cannot drop the entire pre-construction interest of Rs 8 lakh into the FY 2025-26 return - she must spread it across AY 2026-27 to AY 2030-31, and the Rs 2 lakh annual ceiling applies to the sum of current-year interest and the amortised pre-construction instalment.

2. Forgetting the five-year construction window. Section 24(b) third proviso says that for loans taken for purchase or construction on or after 1 April 1999, the Rs 2 lakh limit applies only if construction is completed within 5 years from the end of the financial year in which capital was borrowed. Miss that window and the cap drops to Rs 30,000, irrespective of how much interest you actually paid. Long-delayed under-construction projects in NCR and MMR have triggered this clawback for hundreds of buyers.

3. Treating let-out interest as if it carries forward in the new regime. The loss does not carry forward under Section 115BAC. If you switch from old to new for FY 2025-26, any unabsorbed house property loss from earlier years also lapses for set-off during your new-regime tenure. The Form 10-IE switch primer walks through the eligibility rules.

4. Claiming both Section 24(b) and Section 80EEA without checking sanction date. Section 80EEA, which gave an additional Rs 1,50,000 interest deduction for affordable housing, was a sunset provision: it applies only where the loan was sanctioned between 1 April 2019 and 31 March 2022. Loans sanctioned after 31 March 2022 do not qualify. If your loan was sanctioned in the eligibility window, you can stack 80EEA on top of the Section 24(b) Rs 2 lakh cap, but only in the old regime - 80EEA is not available under Section 115BAC.

Before filing, model the interaction using the income tax calculator and pair it with the capital gains calculator if you are also selling another residential asset. The Section 80C primer and Section 80CCD(1B) primer round out the old-regime stack - note that Section 80CCD(1B) is not allowed in the new regime under Section 115BAC.

FAQ

Can a co-borrower also claim Section 24(b) on the same loan?

Yes, if the co-borrower is also a co-owner and is servicing the EMI from her own funds. Each co-owner can claim her share of interest up to Rs 2,00,000 per AY for a self-occupied property, doubling the family deduction to Rs 4,00,000 for a married couple holding jointly. Rulings such as CIT v. Ravinder Kumar Arora (Bombay HC) support proportional deduction by ownership share.

What happens to unabsorbed house property loss if I switch to the new regime?

Under Section 115BAC(2)(i), unabsorbed house property loss from prior old-regime years cannot be set off during new-regime years. The eight-year window under Section 71B continues to run even while you are in the new regime, so an unused balance can expire untouched. Returning to the old regime before the eighth AY preserves the set-off right, subject to filing on or before the Section 139(1) due date.

Is Section 24(b) available for under-construction property?

Not for the year you pay the interest. Pre-construction interest (from the date of borrowing to 31 March of the year preceding completion) is aggregated and amortised over five equal AYs, beginning the AY in which construction is completed. The Rs 2 lakh annual cap applies to the sum of current-year interest and the amortised slice.

Does the Rs 2 lakh limit apply per loan or per assessee?

Per assessee, per assessment year, across all self-occupied properties combined. From AY 2020-21, an assessee can declare two houses as self-occupied (Section 23(4) amendment), but the combined Section 24(b) ceiling stays Rs 2,00,000.

Can interest paid to a friend or family member qualify under Section 24(b)?

Yes, provided you can produce a written loan agreement, interest certificate and proof of payment. Section 24(b) does not restrict the lender to banks - it is the purpose of the loan (purchase, construction, repair, renewal or reconstruction) that matters. The lender must declare the interest as income, and TDS under Section 194A may apply.

Are processing fees and prepayment charges deductible under Section 24(b)?

Several ITAT benches have held that processing fees, service charges and prepayment penalties qualify as interest within the meaning of the Explanation to Section 2(28A) and are eligible under Section 24(b), subject to the Rs 2 lakh cap for self-occupied property. Retain the lender's interest certificate that breaks out these heads separately.

What if my construction is delayed beyond five years?

The Rs 2 lakh cap reduces to Rs 30,000 for that property. CBDT Circular No. 28/2016 clarifies that the five-year window is calculated from the end of the FY in which capital was first borrowed, not from the date of first disbursement.