Taking a home loan for an under-construction property is fundamentally different from buying a ready-to-move-in flat. The disbursement is staggered, the tax benefits are delayed, and if the builder delays the Occupancy Certificate (OC), you could find yourself paying EMIs for a home you cannot live in, sometimes for years.
This guide explains every phase of an under-construction home loan so you know exactly what you are getting into before signing the sale agreement.
How Disbursement Works for Under-Construction Properties
Banks do not disburse the full loan amount upfront for under-construction projects. Instead, they release funds in tranches linked to construction milestones:
| Construction Stage | Typical Disbursement |
|---|---|
| Foundation completion | 10–15% |
| Plinth / basement level | 15–20% |
| Floor slab (each floor) | 10–15% per floor |
| Brickwork, plaster | 10–15% |
| Flooring and fitments | 10–15% |
| OC and possession | Final 10–15% |
The bank sends a technical officer to verify each milestone before releasing the next tranche. You pay interest only on the disbursed amount, not the sanctioned amount.
Pre-EMI vs Full EMI: Which Option Should You Choose?
Pre-EMI (Interest Only)
During the construction period, you pay only the interest on the disbursed amount each month. The principal repayment starts only after full disbursement (when you receive possession).
Example: ₹50 lakh loan disbursed in tranches. After ₹20 lakh is disbursed at 8.5% interest, your pre-EMI = ₹20,00,000 × 8.5% / 12 = ₹14,167/month. As more tranches are disbursed, your pre-EMI increases.
Disadvantage: You pay only interest during construction. The principal does not reduce at all. If construction takes 3 years, you pay interest for 3 years and make zero progress on principal repayment. Your total outflow is higher.
Full EMI From Day One
Some banks allow you to start paying full EMI from the first disbursement itself, even though the full loan amount has not been disbursed. The EMI is calculated on the full sanctioned amount.
Advantage: You start reducing principal from day one, your total interest outflow is lower, and your loan gets paid off faster.
Disadvantage: Higher monthly outgo during construction when you are also paying rent elsewhere.
Recommendation: If you can afford the higher outgo, choose full EMI. Over a 20-year loan, the difference in total interest paid can be ₹3–5 lakh or more for a ₹50 lakh loan with a 3-year construction period.
Tax Benefits During the Construction Period
This is where many buyers get surprised. Under Section 24(b), you can deduct home loan interest up to ₹2 lakh per year, but only from the year you receive possession, not during construction.
The pre-EMI interest paid during construction is accumulated and deductible in 5 equal instalments starting from the year of possession. If you paid ₹4 lakh in pre-EMI interest over 2 years of construction, you can deduct ₹80,000 per year for 5 years after possession (subject to the overall ₹2 lakh cap).
The Section 80C deduction for principal repayment is also available only after possession.
What Happens If the Builder Delays the OC?
This is the most critical risk with under-construction properties. The Occupancy Certificate (OC) is issued by the local municipal authority after verifying the building meets approved plans and safety standards. If the builder delays the OC:
- You cannot legally take possession or move in
- You continue paying pre-EMI without any tax benefit
- If the delay extends beyond 5 years from the end of the financial year in which the loan was taken, your tax deduction on interest drops from ₹2 lakh to just ₹30,000 per year, a steep cut.
- Banks may not disburse the final tranche, creating problems with the builder
Protecting Yourself Against OC Delays
1. Check RERA registration: All projects with more than 8 units must be registered with RERA. Check the project on your state's RERA portal. Projects registered with RERA must deliver on the committed date or pay compensation.
2. Look at the builder's track record: How many of the builder's previous projects in Tamil Nadu have been delivered on time? RERA portals list completed and ongoing projects by builder.
3. Demand a possession date in the agreement: The sale agreement must clearly state the expected possession date and the compensation the builder pays for each month of delay.
4. File an RERA complaint if delayed: If the builder delays possession, file a complaint on the Tamil Nadu RERA portal at tnrera.in. RERA adjudicating officers can award interest compensation at the SBI MCLR rate for the period of delay.
Home Loan for Under-Construction vs Ready-to-Move: Quick Comparison
| Factor | Under-Construction | Ready-to-Move |
|---|---|---|
| Loan disbursement | Staggered (linked to milestones) | Full amount upfront |
| EMI during construction | Pre-EMI (interest only) | Full EMI from day 1 |
| Tax benefit on interest | Only after possession | Immediately from year 1 |
| GST | 5% (or 1% for affordable housing) | Nil |
| Possession risk | Delay risk, OC risk | No risk |
| Price | Lower (appreciation potential) | Higher (market price) |
Calculate your EMIs for both options using our home loan EMI calculator and check your eligibility with our loan eligibility calculator before deciding.
Frequently Asked Questions
Can I get a tax benefit on home loan interest before I get possession?
No. Section 24(b) deduction on home loan interest is only available from the financial year in which you receive possession. The interest paid during construction is accumulated and deductible in 5 equal instalments over 5 years after possession.
What happens to my home loan if the builder goes bankrupt before completing the project?
You are still liable to repay the home loan regardless of what happens to the builder. The bank has no obligation to waive the loan if the project fails. This is why buying from financially strong, RERA-registered builders is critical. If the builder is insolvent, you may need to file a claim with the NCLT (National Company Law Tribunal) under the Insolvency and Bankruptcy Code.
Is GST applicable on under-construction property? What about ready-to-move?
Yes, GST at 5% (or 1% for affordable housing projects under PMAY with carpet area below 60 sq.m.) is applicable on under-construction properties. Ready-to-move-in properties (those with OC issued before sale) attract no GST, which is one of the key advantages of buying ready-to-move.
Can I claim HRA and home loan interest simultaneously for an under-construction property?
Yes. Since you cannot occupy the under-construction property, you are still eligible to claim HRA on the rent you pay for your current residence. Once you take possession and move in, you can no longer claim HRA. This dual benefit is one of the financial advantages of buying under-construction, but only if you are renting during the construction period.
