New GST for Flat Purchase in India: Rates, Rules & Buyer Insights

Updated: Sep 15, 2026 10 min read Hitesh Aggarwal Add as preferred source
Quick Summary
  • GST on flat purchase applies to under-construction flats. Ready-to-move-in and resale flats are generally outside GST.
  • The GST on residential flat purchase is 1% for affordable housing and 5% for other residential properties without ITC.
  • GST on flats below 45 lakhs is generally 1% if they meet affordable housing conditions.
  • Under-construction commercial properties may attract GST depending on the type of real estate project and applicable classification.
  • Completed flats with an Occupancy Certificate and resale flats do not attract GST, but stamp duty and registration charges apply.

Buying a flat or apartment is one of the biggest investments in a person’s life. Whether it’s for personal use or investment, understanding the Goods and Services Tax (GST) on flat purchases is essential. While GST has simplified real estate taxation, many buyers still have questions about when it applies, how much is charged, and whether  Input Tax Credit (ITC)  is available.

This blog provides a complete guide to GST for flat purchases in India, including tax rates, exemptions, and special cases.

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GST on Flat Purchase: When Does It Apply?

GST applies only to under-construction flats and properties being sold by a builder. If you’re buying a ready-to-move-in flat, where the completion certificate has been issued, GST does not apply.

Type of Property

Under-construction property

GST Applicable?

Yes

Type of Property

Ready-to-move-in (with Occupancy Certificate)

GST Applicable?

No

Type of Property

Resale flat (individual to individual)

GST Applicable?

No

New GST Rates on Under-Construction Flats

Property Type

Affordable housing

GST Rate

1%

Rate Before 22 Sep 2025

1%

Property Type

Other residential properties

GST Rate

5%

Rate Before 22 Sep 2025

5%
Affordable Housing Definition:
  • Carpet area up to 60 sq. meters in metro cities
  • Carpet area up to 90 sq. meters in non-metros
  • Price not exceeding ₹45 lakhs

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SAC Code for Real Estate Construction Services

Construction services for residential and commercial properties are generally classified under SAC Code 9954. The specific SAC code and GST rate depend on the type of construction and applicable project classification.

Service Type

Construction of residential flats

SAC Code

995411

GST Rate

1% or 5%*

Service Type

Construction of commercial buildings

SAC Code

995414

GST Rate

Depends on project classification*

*The 1% and 5% rates are effective GST rates applicable to eligible under construction residential apartments, depending on whether the property qualifies as affordable housing. Commercial property rates can vary based on whether the project is an RREP or another type of REP. 

GST Calculation Example for Flats

Let’s say you buy an under construction flat for ₹50 lakhs in the non affordable segment:

  • GST @ 5% = ₹2,50,000
  • Total Payable = ₹52,50,000

If the flat qualifies as affordable housing and costs ₹40 lakhs:

  • GST @ 1% = ₹40,000
  • Total Payable = ₹40,40,000

Remember: Stamp duty, registration charges, and other applicable state levies are separate and not covered under GST.

Input Tax Credit (ITC) in Real Estate

Under the new  GST regime  (post-April 2019):

  • No ITC is allowed for homebuyers
  • Builders also cannot claim ITC on inputs like cement, steel, labor, etc., under the 5% and 1% rates
  • ITC is allowed only for commercial construction at 12% GST

This ensures builders don’t pass on tax benefits to themselves, keeping home prices fair for consumers.

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GST on Resale Flats or Ready Possession Homes

If you are buying:

  • From an individual (resale flat)
  • Or from a builder but the flat has OC issued

No GST is payable. You’ll still pay stamp duty and registration charges as per your state rules.

Final Thoughts

GST has brought uniformity in flat pricing across states, but it’s crucial to know whether your property is eligible for  GST (Goods and Services Tax) , what rate applies, and how it affects your final cost. While GST does not apply to completed or resale flats, under-construction homes are taxed—1% for affordable and 5% for others—without ITC. Make sure to get all invoices and certificates from your builder to stay tax-compliant and informed.

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Frequently Asked Questions

Clear answers to common queries about this topic.

Is GST applicable on ready-to-move-in flats?

No, GST is not applicable if the builder has received the Occupancy Certificate.

What is the GST rate for affordable housing?

1% without ITC, applicable only if the property meets size and price criteria.

Can I claim GST refund on flat purchase?

No, homebuyers cannot claim ITC or refunds on GST paid for residential property.

Do I pay GST on resale flats?

No, resale flats sold by individuals are exempt from GST.

What if I paid GST before April 2019 at 12%?

That rate was valid before the new scheme was introduced. You may have been eligible for ITC under the old regime.

What is GST on flat sale?

GST can apply when an under construction flat is sold before the completion certificate is issued or before first occupation, whichever is earlier. Completed flats and resale flats are generally not subject to GST.

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Hitesh Aggarwal

Chartered Accountant

As a Chartered Accountant with over 12 years of experience, I am not only skilled in my profession but also passionate about writing. I specialize in producing insightful content on topics like GST, accounts payable, and income tax, confidently delivering valuable information that engages and informs my audience.

MRN: 529770 Delhi