Financial
GST on an under-construction flat, and why ready homes have none
7 min read · Last verified
In short
GST applies to a flat bought while it is under construction, and does not apply to one bought after the project has received its occupancy certificate. Residential purchases are taxed at a concessional rate without input tax credit, with a lower rate for units meeting the affordable housing definition on both carpet area and value.
Key facts
- Applies to
- Under-construction residential property
- Does not apply to
- Completed property sold after occupancy certificate
- Rate structure
- Concessional rate without input tax credit
- Affordable housing
- Lower rate, subject to carpet area and value limits
- Charged on
- The consideration for the flat
- In force since
- The 2019 restructuring of real estate GST rates
GST is the clearest example of a cost that depends entirely on when you buy rather than what you buy. The same flat in the same building attracts the tax at one stage of construction and not at another.
That makes it a genuine input into the ready-versus-under-construction decision, and one that is often left out of the comparison entirely.
The rule that decides whether you pay at all
GST is levied on the supply of construction services. When a developer sells you a flat that is still being built, it is supplying you a service, and the tax applies. When it sells you a completed flat for which the occupancy certificate has already been issued, the transaction is treated as a transfer of immovable property rather than a supply of services, and GST does not apply.
The occupancy certificate is therefore the dividing line. Not possession, not completion in a colloquial sense, not the building looking finished — the certificate.
- Booked before the occupancy certificate: GST applies.
- Bought after the occupancy certificate: no GST.
- The certificate is issued by the planning authority, not by the developer.
The two residential rates
Since the 2019 restructuring, residential real estate has been taxed at concessional rates with the input tax credit chain broken. The developer cannot pass on credit for the tax it paid on cement, steel and services, which is the trade-off for the lower headline rate.
There are two tiers: a standard residential rate, and a lower rate for units qualifying as affordable housing. The affordable tier is defined on two tests simultaneously — a carpet area limit, which is tighter in metropolitan areas, and a value limit. A unit has to satisfy both to qualify; being small but expensive does not get you there, and neither does being cheap but large.
| Category | Input tax credit | Qualifying tests |
|---|---|---|
| Affordable residential | Not available | Carpet area limit AND value limit, both must be met |
| Other residential | Not available | Everything not meeting the affordable tests |
| Completed, with occupancy certificate | Not applicable | No GST at all |
Carpet area limits differ between metropolitan and non-metropolitan areas. Navi Mumbai falls within the Mumbai metropolitan region, so the tighter metropolitan limit applies. Confirm the current rates and thresholds before you rely on them.
What it means for the ready-versus-under-construction choice
The absence of GST on a completed flat is a real and quantifiable saving, and it partly explains why ready inventory commands a premium. A comparison that puts an under-construction price beside a ready price without adjusting for GST is not comparing like with like.
That said, GST is one input among several. Under-construction purchases typically carry a lower headline price and a staged payment schedule that reduces the early cash requirement, against the risk of delay and the cost of paying rent while you wait. The tax difference belongs in that calculation rather than deciding it.
- Add GST to the under-construction price before comparing it with a ready one.
- Set the saving against the delay risk you are taking on.
- Remember you may be paying rent throughout an under-construction period.
- Ready inventory in Navi Mumbai is genuinely scarce, which affects the choice as much as the tax does.
Points that catch buyers out
A few recurring misunderstandings are worth naming directly.
- GST is charged on the flat consideration; the treatment of other charges a developer levies should be confirmed line by line on the cost sheet.
- Stamp duty is charged separately and is not reduced because GST was paid.
- "No GST" claims in marketing usually mean the project has its occupancy certificate — ask to see it rather than taking the claim.
- Booking before the certificate and paying after it does not avoid the tax; the liability attaches to the nature of the supply, not the payment date.