Published on: 22 October 2026
GST on an under-construction flat is generally 5% for non-affordable housing and 1% for qualifying affordable housing. Completed residential flats are generally exempt from GST if the applicable completion and payment conditions are met. Stamp duty, registration and other charges are separate.
Buying an under-construction flat can offer flexible payment options and access to newer residential projects. However, the final purchase cost is not limited to the price quoted by the builder. Buyers must also understand applicable taxes, registration expenses and other charges before deciding whether a property fits their budget.
Understanding GST on under construction flat purchases helps homebuyers calculate their actual expenses and compare property options more accurately. The applicable GST rate depends mainly on whether the residential property qualifies as affordable housing and whether construction is complete at the relevant stage of sale. Buyers comparing options can also explore this guide on ready-to-move vs under-construction property before making a decision.
Goods and Services Tax (GST) is an indirect tax that may apply to the construction service supplied by a builder when a residential property is sold before completion under the applicable GST rules.
When a buyer books a flat in a project that is still being constructed, payments may be linked to construction milestones, instalments or other terms in the agreement. GST can apply to the taxable supply, subject to the applicable rules and exemptions.
For example, if you purchase a flat directly from a developer before the relevant completion stage, GST may be included in the amount payable. However, if you purchase a completed flat after the applicable completion certificate or first-occupation threshold, the sale is generally outside the scope of GST.
This distinction matters because two flats with similar prices can have different tax costs depending on the stage of construction and the terms of the transaction.
The applicable GST rate for a residential flat generally falls into one of two categories under the concessional residential real-estate scheme.
Most under-construction residential flats that do not meet the prescribed affordable housing conditions attract an effective GST rate of 5% under the applicable scheme.
This category can include regular apartments, premium flats and luxury residential units. A higher-priced apartment does not qualify for the affordable housing rate simply because it is located in a developing locality or marketed as a budget-friendly option.
Example:
Suppose you purchase an under-construction flat for ₹80 lakh.
This calculation assumes the entire ₹80 lakh is the relevant consideration for the residential supply and the concessional 5% rate applies. Stamp duty, registration and other applicable charges are additional.
Qualifying affordable residential housing attracts an effective GST rate of 1% under the applicable scheme.
To qualify, a residential unit generally needs to meet both the prescribed price limit and carpet-area limit:
Both conditions must be satisfied. A home priced below ₹45 lakh may not qualify if its carpet area exceeds the applicable limit. Similarly, a small flat priced above the prescribed limit may not qualify.
Jaipur falls under the non-metropolitan category for this affordable housing definition. Therefore, the relevant carpet-area limit is generally 90 square metres, along with the ₹45 lakh price ceiling.
Example:
Suppose a qualifying affordable flat costs ₹40 lakh.
This example assumes the unit satisfies all applicable affordable housing conditions and qualifies for the concessional rate. Other property purchase expenses remain separate.
Calculating GST before booking a property helps you understand the approximate amount payable to the builder.
Follow these steps:
Check whether the flat is under construction or has reached the applicable completion stage. Do not rely only on the builder's description of the property as ready-to-move.
Ask whether the required Completion Certificate (CC) or Occupancy Certificate (OC) has been issued and verify the relevant dates.
Confirm the total amount charged and the carpet area. Both must satisfy the applicable conditions for the 1% rate.
If the property does not qualify for affordable housing, the standard concessional rate for residential flats is generally 5%.
For a qualifying residential unit under the concessional scheme, use the applicable effective rate on the relevant consideration.
For example:
These examples assume the quoted amounts represent the relevant consideration for the residential supply and the applicable rate is confirmed. The builder's tax invoice and agreement should establish the actual taxable amount.
GST is only one part of the total property cost. You may also need to budget for stamp duty, registration charges, maintenance deposits, parking charges where applicable, and other contractual expenses.
Ask the builder for a complete cost sheet instead of relying solely on the advertised flat price.
The construction status at the relevant time is one of the most important factors in determining GST applicability.
GST generally applies to the construction service when a flat is sold before the applicable completion certificate or first-occupation threshold. The applicable residential rate is generally 1% for qualifying affordable housing or 5% for other residential units under the concessional scheme.
Buyers should review the payment schedule and confirm how GST is reflected in the builder's demand letters.
The sale of a completed residential flat is generally not subject to GST when the entire consideration is received after issuance of the applicable Completion Certificate, where required, or after first occupation, whichever is earlier under the relevant rule.
However, the label ready-to-move alone is not enough. A buyer should verify the actual completion and occupation status and the timing of payments.
For example, if a builder markets a flat as ready-to-move but the relevant completion conditions have not been met, GST treatment may differ from what the buyer expects.
The sale of a completed residential flat by an existing owner is generally outside GST because it is a sale of immovable property. However, separate services or other taxable transactions associated with the purchase may have their own tax treatment.
The GST amount should not be confused with the total cost of buying a flat. Several additional expenses can affect the final budget.
Stamp duty and registration charges are state-level expenses that apply separately from GST. The amount depends on the applicable state rules, property value and relevant buyer or transaction details.
For a property purchase in Jaipur, confirm the current Rajasthan charges and the valuation used for registration before finalising your budget.
Builders may collect advance maintenance, common-area maintenance deposits or other amounts under the agreement. The GST treatment of these amounts depends on the nature of the charge and applicable tax rules.
Ask for a clear breakdown of recurring maintenance charges, one-time deposits and any applicable taxes.
Parking, club facilities, preferential location charges and other add-ons may appear in the builder's cost sheet. Their treatment can depend on the contract, whether they form part of the overall property consideration and the applicable GST rules.
Do not assume that every additional charge is automatically taxed at the same rate as the flat. Request an itemised invoice and clarification from the builder.
Loan processing fees, legal fees, insurance and interior work can also affect your overall budget. These are separate from the GST payable on the residential construction service and may be subject to their own charges or tax treatment.
Under the concessional residential real-estate scheme, builders cannot claim input tax credit (ITC) for the applicable 1% or 5% residential construction rate.
For individual homebuyers purchasing a flat for personal use, GST charged on the purchase is generally not recoverable as input tax credit.
This means buyers should consider the applicable GST as part of their property acquisition cost rather than assuming they can claim it back later.
Commercial property transactions and certain business-related purchases can follow different rules. If a property is being purchased for business use, buyers should obtain transaction-specific tax advice instead of applying residential rules automatically.
Before paying a booking amount or the next instalment, review the following details:
These checks can help prevent unexpected costs and make it easier to compare properties on a like-for-like basis.
Understanding GST on under construction flat purchases is essential before finalising a residential property. Most non-affordable under-construction flats attract an effective GST rate of 5%, while qualifying affordable homes attract 1% under the applicable scheme. Completed residential properties generally do not attract GST on the sale when the relevant completion and payment conditions are satisfied. Buyers should verify the project's status, tax rate, payment terms and supporting documents before making a commitment.
The best way to avoid surprises is to compare the complete purchase cost rather than focusing only on the advertised price. If you are evaluating residential options, Search Abode can help you explore property listings and understand the factors that affect your buying decision. You can also read our property rates in Jaipur guide to understand how location, property type and other factors influence the overall cost of a home.
The effective GST rate is generally 5% for non-affordable residential flats and 1% for qualifying affordable housing under the applicable concessional scheme. Both rates are without input tax credit for the builder.
No. GST generally applies to the construction service supplied for an under-construction flat. The sale of a completed residential property after the applicable completion certificate or first-occupation threshold is generally outside GST.
If the flat is under construction and qualifies for the 5% concessional residential rate, the estimated GST on a relevant consideration of ₹60 lakh is ₹3 lakh. Other applicable expenses are additional.
Qualifying affordable housing attracts an effective GST rate of 1% under the applicable scheme. Generally, the house must cost no more than ₹45 lakh and satisfy the relevant carpet-area limit.
No. The price condition and carpet-area condition must both be satisfied. The property must also meet the other applicable requirements for the concessional affordable housing rate.
Generally, no GST applies to the sale of a completed residential flat when the entire consideration is received after the applicable completion certificate or first-occupation threshold. Buyers should verify the actual documentation and payment timeline.
