GST on Under-Construction Property: Rates, Rules and Tax Calculation Guide

Properties that are under development offer buyers many different financing choices while also providing a less costly way for buyers to purchase their new property. Many prospective homebuyers fail to consider one key component of the purchasing process however - GST (Goods and Services Tax). Knowing how GST works with a property's purchase price will allow you to estimate your total cost of a new home, as well as help to alleviate any unexpected surprises when the time comes to settle the account.

This informative guide will discuss how to calculate GST on new residential properties, as well as the various rates and eligibility requirements associated with each. As with other construction-related services, GST interface with a completed home only occurs on an under-construction home (prior to reaching Completion Certificate or Occupancy Certificate.

What Is GST on Under-Construction Property?

GST is an indirect tax levied on the sale of properties that are still under construction at the time of purchase. Since the construction activity is ongoing, the transaction is considered a service under GST laws. In contrast, completed or ready-to-move properties are treated as the sale of immovable property and therefore do not attract GST. Land purchases and resale properties are also exempt from GST.

The logic behind GST on property is grounded in how the transaction is classified under Indian tax law. Under-construction property sales are treated as a supply of construction services, the developer is providing a service that is still being performed. Since services are taxable under GST, the transaction attracts the tax.

Ready-to-move properties are classified differently as the sale of immovable property rather than a service. Immovable property sales don't attract GST, which is why a flat with an Occupancy Certificate is tax-free from GST's perspective while an identical flat in the same building, sold before the OC is received is taxable.

Also Read: How to Pay Your Property Tax Jaipur: Complete Step-by-Step Guide

When Is GST Applicable on Property Purchase?

GST is applicable in the following situations:

• Purchase of an under-construction residential flat or apartment
• Booking a property before receiving an Occupancy Certificate
• Buying an under-construction commercial unit

GST is not applicable in the following cases:

• Ready-to-move-in properties with OC/CC
• Resale properties
• Purchase of plots or land without construction services

A simple rule to remember, if construction is incomplete at the time of sale, GST generally applies.

GST Rates on Under-Construction Properties

The GST rate depends on the type of property being purchased.

The 1 percent rate for affordable housing and 5 percent for other residential properties are effective rates that already account for the fact that buyers cannot claim Input Tax Credit so what you see is what you pay, without any mechanism to recover the GST through ITC.

What Qualifies as Affordable Housing?

There are two different GST rates for affordable housing; these rates can differ by 4% depending on the value of the property and can lead to extreme price variations such as hundreds of thousands of rupees on the most expensive properties in the affordable category if the property meets the affordable housing qualification by meeting all three of the following criteria:

• The property value does not exceed ₹45 lakh.
• Carpet area is up to 60 sq. metres in metro cities.
• Carpet area is up to 90 sq. metres in non-metro cities.

Such properties attract a reduced GST rate of 1%.

GST on Under-Construction vs Ready-to-Move Property

Many homebuyers compare under-construction and ready-to-move homes based on taxation.

The comparison reveals that the price advantage of under-construction property needs to be large enough to absorb the GST cost before it represents genuine savings over ready-to-move. On a ₹70 lakh non-affordable under-construction flat, GST adds ₹3.5 lakh to the effective purchase price. If a comparable ready-to-move option exists within ₹3.5 lakh of that price, the tax advantage flips entirely.

This doesn't mean under-construction is always the inferior choice, flexible payment schedules, fresher construction, and potentially stronger appreciation from an earlier entry point can offset the GST cost. But the comparison needs to be made on total cost not headline price.

Also Read: How to Pay Property Tax in Bhopal: Step-by-Step Guide for 2026

How to Calculate GST on an Under-Construction Property

Understanding GST calculation helps buyers estimate the total property cost accurately.

Example 1: Non-Affordable Housing

Assume:

• Property Value: ₹80 lakh
• GST Rate: 5%

GST Payable:

₹80,00,000 × 5% = ₹4,00,000

Total Cost:

₹80,00,000 + ₹4,00,000 = ₹84,00,000

Example 2: Affordable Housing

Assume:

• Property Value: ₹40 lakh
• GST Rate: 1%

GST Payable:

₹40,00,000 × 1% = ₹40,000

Total Cost:

₹40,00,000 + ₹40,000 = ₹40,40,000

Always ask the builder for a detailed cost sheet showing the base property value, GST amount, parking charges, club membership fees, and other applicable costs before making a purchase decision.

Can Homebuyers Claim Input Tax Credit?

Homebuyers who buy homes that are still being constructed cannot obtain input tax credits (ITC) for purchasing the property. The GST rules that apply to home purchases don't allow individual home buyers to receive an ITC for any GST they pay on the GST incurred to purchase an unfinished property.

This is distinct from commercial property purchases; businesses buying under-construction commercial property at 12 percent GST can claim ITC against their GST output liability, effectively recovering the tax cost through the credit mechanism. For residential buyers, no such recovery exists.

The practical implication is that the full GST amount whether 1 percent for affordable housing or 5 percent for other residential property is a cost that you absorb entirely. It should be budgeted for upfront and factored into every financial comparison you make between properties.

Key Things Buyers Should Check Before Paying GST

Verify occupancy status before signing. If a project has already received its Occupancy Certificate by the time you're booking, GST should not be charged. Some developers market projects that are technically complete but ask for bookings using documentation from the pre-OC period. If the OC exists, the transaction is a sale of immovable property not a construction service and GST doesn't apply.

Confirm the affordable housing classification explicitly. If your project is being marketed as affordable housing at a 1 percent GST rate, verify against the three criteria: price ceiling, carpet area, location and ask the developer to confirm in writing the GST classification they're applying. This protects you if a dispute arises later about the applicable rate.

Request a detailed cost sheet before signing. The cost sheet is the document where the full financial picture of your purchase becomes visible. It should show the base property price, the GST amount calculated on that price, parking charges and whether GST applies to those, maintenance deposit, club membership or amenity charges, and any other fees. Without this document, you're agreeing to pay an amount that isn't fully defined which creates scope for surprise charges later.

Compare total acquisition cost across options. When comparing an under-construction property against a ready-to-move alternative, always calculate the total acquisition cost including GST, stamp duty, registration, and any other charges for both options before making the comparison. The base price comparison is incomplete and potentially misleading.

Conclusion

The amount a buyer pays for an under-construction property is significantly affected by GST. There are two GST rates that apply to residential properties that are under construction; 1% for affordable housing and 5% for all other residential properties. GST does not apply to residential properties that are ready to move into. By being familiar with the applicable rates and exemptions, as well as how to calculate the applicable GST, buyers will be better positioned to make informed buying decisions and successfully budget for the cost of the property.

Before purchasing any residential property, buyers should confirm whether the residential property is occupied/under construction; if GST will apply to the purchase of the residential property; and the developer of the residential property should provide buyers with a cost breakdown related to the purchase of the residential property. This will prevent any unpleasant surprises when you are required to pay for your new residence.