GST on Under-Construction Property: Rates, Calculation and Loan Impact

Quick Overview

• GST applies only when you are buying an under-construction property from a builder before the Completion Certificate or Occupancy Certificate is issued.
• Standard residential under-construction properties generally attract 5% GST, while eligible affordable housing projects attract 1% GST.
• GST is payable along with construction-linked payment demands raised by the builder.
• Ready-to-move and resale properties do not attract GST if the completion certificate has already been issued.
• GST is separate from registration charges, stamp duty, parking charges, and other statutory expenses.
• Understanding the GST liability helps buyers estimate the total purchase cost and plan their home loan requirements better.

When GST Applies

Understanding when GST becomes applicable is one of the most important aspects of purchasing residential property. Many buyers assume that every home purchase attracts GST, but the tax depends on the construction stage of the property.

Under-construction vs ready-to-move

The biggest distinction under GST law is whether the property is under construction or completed. If you purchase an apartment, villa, or house while construction is ongoing, under-construction property GST is applicable because the builder is supplying a property that is still being developed.

However, if the builder has already received the Completion Certificate (CC) or Occupancy Certificate (OC) before the sale, GST does not apply. Such properties are treated as completed immovable property rather than a taxable supply of construction services. Similarly, resale properties purchased from an existing owner do not attract GST.

Why possession changes tax treatment

Possession alone is not the deciding factor. What matters is whether the competent authority has issued the Completion Certificate before the sale transaction.

If the certificate has not been issued, the sale remains taxable under GST, even if construction is almost complete.

Once the Completion Certificate is issued, future sales are generally exempt from GST.

What parts of the price are taxable

GST usually applies to the taxable value charged by the builder for the under-construction property. The taxable amount may include:

• Basic sale value
• Construction cost
• Builder charges included in the agreement

Other charges such as registration fees and stamp duty are governed by separate laws and are not part of GST.

GST Rate on Under Construction Property

The GST rate depends on the category of the housing project.

Standard residential projects

For most residential projects, GST on under-construction property is charged at 5% without input tax credit. This applies to residential apartments sold before the Completion Certificate is issued.

Affordable housing cases

Eligible affordable housing projects enjoy a concessional GST rate of 1% without input tax credit. Eligibility depends on the government's prescribed conditions regarding carpet area and property value, which may vary based on location and prevailing regulations.

Charges buyers often confuse with GST.

Many buyers assume every payment made to the builder attracts GST in the same way. In reality, several charges are different from GST itself. These may include:

• Stamp duty
• Registration charges
• Maintenance deposits
• Electricity deposits
• Legal documentation charges
• Society formation charges

Always ask the builder for a detailed cost sheet that clearly separates GST from other charges.

GST on Under Construction Flat Calculation

Knowing how GST is calculated helps buyers estimate the total property cost accurately.

Base value before GST

GST is generally calculated on the taxable transaction value charged by the builder after considering applicable valuation provisions. Buyers should carefully review the builder's cost sheet to understand which components form part of the taxable value.

Sample calculation for a flat buyer

Suppose a buyer books an under-construction apartment with a taxable value of ₹60 lakh.

If the project qualifies as affordable housing:

Actual calculations may differ depending on applicable GST rules, project eligibility, and builder pricing.

Payment-demand schedule and GST timing

Builders usually raise payment demands based on construction milestones. For example:

• Booking amount
• Foundation completion
• Floor completion
• Roof slab completion
• Internal finishing
• Final possession

GST is generally collected along with each instalment rather than as a one-time payment at possession.

Under Construction Property GST vs Other Charges

GST is only one component of the total property acquisition cost.

GST vs stamp duty

GST and stamp duty are entirely different.

In many cases, buyers need to pay both GST and stamp duty separately.

PLC, parking and club charges

Builders often charge additional amounts for:

• Preferred Location Charges (PLC)
• Covered parking
• Clubhouse membership
• Premium amenities

The GST treatment of these charges depends on how they are structured in the builder agreement. Buyers should seek a detailed breakup before making payments.

Land value and registration costs

Registration charges and stamp duty are separate statutory expenses. These are not replaced by GST, and buyers should include them while estimating the total purchase budget.

Under Construction Home GST and Home Loans

Many homebuyers wonder whether GST can be financed through their housing loan.

Is GST funded by the home loan?

Whether under-construction home GST is covered under a home loan depends on the lender's policy and the sanctioned loan amount. Some lenders may finance GST as part of the overall property cost, while others may require buyers to pay it separately from their own funds. Buyers should confirm this before signing the loan agreement.

EMI, disbursement and cash-flow impact

Under-construction homes typically involve stage-wise loan disbursements. As construction progresses:

• Builder raises payment demands.
• Bank releases the corresponding loan amount.
• Buyer pays the applicable GST.
• Pre-EMI interest may be payable on the disbursed amount.

This makes cash-flow planning especially important during construction.

Questions to ask your lender and builder

Before finalising the purchase, ask:

• Will GST be included in the loan amount?
• When will GST payments become due?
• How are stage-wise disbursements handled?
• What additional charges should I budget for?
• Is the quoted property price inclusive or exclusive of GST?

Buyer Checklist and Mistakes

A little preparation can help buyers avoid expensive surprises.

Before booking the property

Check the following:

• GST rate applicable to the project
• Whether the project qualifies as affordable housing
• Builder's GST registration details
• Total cost including taxes and statutory charges

Before signing the demand letter

Review:

• GST calculation on each instalment
• Construction milestone linked to payment
• Additional builder charges
• Payment schedule
• Loan disbursement timelines

When to consult a tax professional

Professional advice can be useful if:

• Multiple charges appear unclear.
• Builder invoices seem inconsistent.
• You are purchasing multiple properties.
• Tax treatment differs from what was promised.
• There are questions regarding cancellation, refunds, or commercial property taxation.

Conclusion

Understanding GST on under-construction flat purchases helps buyers estimate the actual cost of home ownership and avoid unexpected expenses during construction. Since GST applies only to eligible under-construction properties and not to completed or resale homes, checking the project's completion status is essential before making a purchase. Comparing GST with other charges such as stamp duty, registration fees, and builder-specific costs also provides a clearer picture of the total investment.

If you're planning your home purchase and exploring financing options, the L&T Finance Planet App can help you learn more about home loans, calculate affordability, and make informed borrowing decisions as you move closer to owning your dream home.

FAQs

Is GST applicable on resale property?

No. GST is generally not applicable on resale properties purchased from an existing owner.

Is GST charged after the completion certificate is issued?

No. Once the Completion Certificate or Occupancy Certificate has been issued before the sale, GST is generally not applicable.

Can a builder charge GST on registration or stamp duty?

No. Registration charges and stamp duty are governed by separate laws and are not subject to GST in the same manner as the under-construction property value.

Do buyers pay GST on maintenance charges before possession?

The GST treatment depends on the nature of the maintenance charges and applicable GST provisions. Buyers should review the builder's invoice carefully.

Is GST refundable if I cancel an under-construction flat booking?

Refund eligibility depends on the builder's cancellation policy, the stage of the transaction, and applicable GST provisions. Buyers should consult the builder and, if required, a tax professional for case-specific guidance.

Does GST apply differently to affordable housing projects?

Yes. Eligible affordable housing projects generally attract a concessional GST rate of 1%, while most other residential under-construction properties attract 5%, subject to prevailing government regulations.