Tax deductions for under-construction homes only apply after property possession. With the default New Tax Regime, many homeowners risk losing these benefits unless they proactively opt for the Old Tax Regime. Understanding how to handle pre-construction interest and regime selection is critical for financial planning in 2026.
Many homebuyers often mistakenly assume that tax benefits on home loans begin as soon as they start paying equated monthly installments (EMIs) for an under-construction property. However, the Income-tax Act, as per current 2026 guidelines, is clear: tax deductions for home loans are not available while the property is still under construction. The eligibility for these tax breaks strictly begins only in the financial year in which the construction is completed and the borrower receives possession of the home.
The Pre-Construction Interest Rule
While deductions are paused during the construction phase, the interest paid during this time does not go to waste. Borrowers can accumulate all the interest paid from the date of the loan disbursement until the end of the financial year immediately preceding the year of possession. This accumulated amount, often referred to as 'pre-construction interest,' is eligible for deduction. Under current rules, this total amount is allowed as a deduction in five equal annual installments, starting from the year the property is ready for occupation. This helps taxpayers smooth out their tax burden over a five-year period once they move into their home.
The 2026 Tax Regime Challenge
Navigating these deductions has become more complex with the implementation of the New Tax Regime, which is now the default option for taxpayers. The New Tax Regime generally disallows itemized deductions, including those for home loan interest under Section 24(b) and principal repayment under Section 123 (formerly Section 80C) for self-occupied properties. For homeowners with significant home loan interest, sticking to the default New Tax Regime could mean losing the entire tax shield benefit. To claim these deductions, taxpayers must actively choose to file under the Old Tax Regime. This requires a careful calculation to determine if the tax savings from the Old Tax Regime's deductions outweigh the potentially lower tax slab rates offered by the New Tax Regime.
Limits and Rental Nuances
For self-occupied properties under the Old Tax Regime, the total interest deduction—which includes both current interest and the annual portion of pre-construction interest—is capped at ₹2 lakh per financial year. Principal repayment can be claimed up to ₹1.5 lakh annually. If the property is let out, the interest deduction does not have the ₹2 lakh upper limit, allowing for a full claim against rental income. However, if a loss arises from the house property, it can only be set off against other income sources up to ₹2 lakh, with the remainder carried forward for up to eight years.
Risks to Consider
Several factors can disrupt these tax plans. The most significant risk is a delay in project completion. Since the five-year window for claiming pre-construction interest only triggers upon possession, indefinite project delays postpone the tax benefits. Additionally, taxpayers must maintain meticulous records, including the interest certificate from the bank and proof of possession, to substantiate their claims during tax filing. Relying on an automatic deduction without verifying the chosen tax regime is a common pitfall that can lead to missed savings. Taxpayers should ensure they calculate their total tax liability under both regimes before filing their annual income tax returns to confirm which path offers the most financial advantage.