Your Guide to GST on Under-Construction, Affordable, and Ready-to-Move Properties

Saranya Manoj
7 Min Read

How GST Reshaped Property Buying in India

Since the introduction of GST in 2017, the real estate sector has undergone a major overhaul. By replacing VAT, service tax, and other levies, GST simplified the tax structure, reduced cascading taxes, and brought transparency to flat purchases. In 2025, these benefits continue to impact both developers and homebuyers—especially when deciding between under-construction and ready-to-move-in flats.

GST Rates on Different Property Types (2025)

Property TypeGST RateITC Available?Notes
Under-construction (residential)5%❌ Not AvailableMost residential flats
Under-construction (affordable)1%❌ Not AvailableFlats below ₹45L, size-limited
Under-construction (commercial)12%✅ AvailableOffices, shops, showrooms
Ready-to-move or completed flats0%❌ Not ApplicableWith occupancy certificate

Want to avoid GST altogether? Opt for a flat that already has an occupancy certificate.

What Counts as Affordable Housing Under GST?

The government defines affordable housing using two filters:

CriteriaMetro CitiesNon-Metro Cities
Carpet AreaUp to 60 sq. m.Up to 90 sq. m.
Price CapUp to ₹45 lakhsUp to ₹45 lakhs
GST Rate1% (No ITC)1% (No ITC)

This 1% concessional rate supports initiatives like the Pradhan Mantri Awas Yojana (PMAY) and helps economically weaker sections access homeownership.

GST on Flats Above ₹45 Lakhs

If your under-construction flat costs more than ₹45 lakhs, it falls under non-affordable housing. Here, the GST rate is 5% without ITC. GST doesn’t apply once the project is completed and the occupancy certificate is issued.

No GST on Ready-to-Move-In Flats

Completed flats with a valid occupancy certificate are completely exempt from GST. But remember: if the flat is 95% complete and lacks certification, it may still be taxed at 5%.

Use Find Your SRO from Verified.RealEstate to verify if the project has a completion certificate.

GST on Registration Charges

GST is not applicable on stamp duty or registration fees. These are state government charges and must still be paid as usual—even for GST-exempt properties.

GST on Land & Developable Plots

  • 🟢 No GST on sale of land, even if basic infrastructure is added. This was clarified by the CBIC (August 2022) and upheld in Karnataka.
  • ⚠️ Some earlier state rulings (e.g., MP & Gujarat AARs) tried applying GST of 18% on developed plots, but the uniform clarification now protects buyers from such charges.

Explore Zone Conversion or Layout Approval services on Verified.RealEstate when considering developable plots.

Are Stamp Duty and Registration Charges Covered Under GST?

No, GST does not apply to stamp duty or registration charges, as these are levied by individual state governments and are not considered goods or services under the GST Act. Therefore, GST and stamp duty are completely separate charges when purchasing a flat.

However, GST is applicable to services related to property transactions—such as brokerage, legal consultation, and property valuation. These professional services fall under the definition of “supply of services” and attract GST, which can increase the overall transaction cost for homebuyers.

So while the stamp duty itself remains unaffected by GST, the associated services around the transaction do fall under GST, making it essential for buyers to plan for these additional costs.

So what does this mean in Tamil Nadu?

In Tamil Nadu, the current position follows the central GST clarification issued by the CBIC (Central Board of Indirect Taxes and Customs) on August 3, 2022 — which clearly states: “No GST is applicable on the sale of developable land, even if basic infrastructure like roads, drainage, or water supply has been added.”


⚛ If a developer in TN is demanding GST on land sale with layout approval—you can challenge it, and it may be considered unlawful.

⚛ Only stamp duty and registration fees are applicable, as per Tamil Nadu Registration Department rules.

⚛ If you’re buying a developable plot (with layout approval, internal roads, or drainage) — GST is NOT applicable.

⚛ The sale of such land is treated as a sale of immovable property, not as a supply of service under GST law.

Input Tax Credit (ITC): Do You Benefit?

  • For Buyers: You don’t get ITC on residential flat purchases (unless it’s commercial or rental).
  • For Builders: They can claim ITC on inputs like cement, steel, etc.—but passing it to buyers is optional. So, always ask the builder if they’re reducing prices based on ITC benefits.

Step-by-Step GST Calculation for Flat Purchase

Example: Affordable Housing Flat

  • Base price = ₹40,00,000
  • GST @1% = ₹40,000
  • Total Cost = ₹40,40,000

Example: Luxury/Non-affordable Flat

  • Base price = ₹75,00,000
  • GST @5% = ₹3,75,000
  • Total Cost = ₹78,75,000

Use the Stamp Duty & Registration Fee Calculator to find your complete cost.

GST on Government Housing Schemes

Projects under schemes like PMAY are taxed at just 1%, making them highly attractive to first-time homebuyers and lower-income groups.

Common FAQs about GST on Flats

  1. Can I avoid GST while buying a flat?
    Yes—buy a ready-to-move-in property with an occupancy certificate.
  2. Is GST 12% on residential flats?
    No—12% GST is for commercial units only.
  3. Does GST affect home loan EMIs?
    Not directly, but it increases cost of legal and processing fees.
  4. What if the flat is still under finishing or interiors?
    If there’s no completion certificate, GST at 5% still applies.
  5. Is GST applicable on resale flats?
    No. GST does not apply to resale of completed properties.

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