GST for Real Estate and Construction: Works Contracts Explained

Under India’s GST law, a works contract means a contract involving building, construction, installation, repair or similar activities relating to immovable property, where the transfer of property in goods is involved. Under Section 2(119) of the CGST Act, works contracts are treated as a supply of services for GST purposes. The applicable GST rate depends on the nature of the construction service, project category and relevant notification conditions. Input tax credit is also subject to restrictions under Section 17(5), particularly for construction of immovable property other than plant and machinery.

The rules are national, but the practical questions are local. Builders in Chennai, Coimbatore and Madurai deal with the same rates, but also with TNRERA registration, state government contract deductions and metro-city thresholds for affordable housing. This guide covers both and helps you check your position before you invoice. Need a GSTIN first? See our GST registration in Tamil Nadu service.

GST for Real Estate and Construction

The GST for real estate and construction is the indirect tax on the construction, development, sale, and supply of certain property-related goods and services. Construction services, works contracts, and the sale of under-construction property are some of the activities that are covered by GST rules and tax rates. The GST liability varies depending on the nature of the project, the type of property, the stage of completion, and the applicable exemptions. Real estate developers, builders, contractors, and construction companies should abide by GST registration, tax invoice issuance, return filing, and payment of taxes. They are expected to be aware of the restrictions on the Input Tax Credit (ITC), especially in the construction of immovable property.

GST Rates at a Glance

Supply	GST Rate	ITC to the Supplier?
Works contract services (general)	18%	Yes, subject to Section 17(5)
Government civil works contracts earlier taxed at 12%	Moved to 18% from 22 September 2025	Yes
Under-construction affordable apartment (residential real estate project)	1% effective	No
Under-construction non-affordable residential apartment	5% effective	No
Under-construction commercial space	Reported at 18% from 22 September 2025, earlier 12%. Confirm against the notification.	Yes
Sale of a completed property after the completion certificate	Nil	ITC on the exempt portion must be reversed
Sale of land	Nil	Not applicable
Cement	18% (earlier 28%)	Input for the builder

An apartment counts as affordable if its carpet area is up to 60 sq m in a metropolitan city (Chennai is one) or 90 sq m elsewhere, and its value is up to ₹45 lakh. The 1% and 5% rates are effective rates on the total consideration, because the law allows a deemed deduction of one-third for land. Rates and exemptions change by notification, so confirm your supply against the current notification before invoicing.

What Is a Works Contract?

A works contract is a contract which involves construction, installation, repairs, renovation, alteration, maintenance or commissioning operations related to immovable property, even where transfer of property in goods is involved. A works contract is defined in Section 2(119) of the Central Goods and Services Tax Act, 2017, and Schedule II treats it as a supply of services. Some examples of works contracts include construction of buildings, road building, electrical and plumbing installation, renovation, and infrastructure works. The GST for a works contract depends upon the nature of work, GST rates and the parties involved. Contractors involved in works contracts have to abide by GST rules.

GST for Works Contracts

Works contracts are categorised into a specific category of supply under the Goods and Services Tax (GST) law since such supply includes activities like construction, installation, repairs, remodelling, etc. GST laws related to works contracts are extremely significant for contractors, builders, developers, infrastructure companies, and government contractors. The following are the key features of GST for works contracts:

1. Works Contracts under GST

• As per Section 2(119) of the CGST Act, 2017, “works contract” means a contract for the building, construction, fabrication, completion, erection, installation, fitting out, improvement, modification, repair, maintenance, renovation, alteration or commissioning of any immovable property, wherein transfer of property in goods (whether as goods or in some other form) is involved in the execution of such contract.
• It is regarded as a supply of services under GST, as per Schedule II.

2. GST Classification

• Unlike the old indirect tax system, which taxed the goods portion under VAT and the service portion under service tax, GST treats works contracts relating to immovable property as a supply of services.
• The classification makes taxation easy by combining the two elements of such contracts, goods and services, in one tax regime, usually under SAC 9954.

3. GST Rates

• The GST rate applicable to works contracts depends on the type of contract, who is the recipient of the services, and notifications.
• The general rate of GST for works contracts is 18%. Several works contracts, such as certain government civil works, were earlier taxed at a concessional 12% under notified entries, but these moved to 18% from 22 September 2025. Check the current entry in Notification 11/2017-Central Tax (Rate), as amended, for your work type.
• Contracts signed before the rate change need care. Check your contract’s price variation or GST clause, and the time of supply, before charging the old or new rate.

4. Time of Supply

• The GST liability of works contracts is determined by the time of supply rules applicable to services under Section 13 of the CGST Act.
• The general rule is that the time of supply is the earlier of the invoice date (or the last date by which the invoice should have been issued, which is 30 days from the date of service) and the date of receipt of payment.
• For running account bills and milestone-based contracts, each bill or milestone triggers its own time of supply.

5. Place of Supply

The place of supply for works contracts relating to immovable property is the location of the immovable property under Section 12(3) of the IGST Act. A Tamil Nadu contractor working on a site in Karnataka therefore charges IGST or Karnataka GST, and may need registration there. See multiple GST registrations in different states.

6. Input Tax Credit (ITC)

• Contractors can claim ITC on goods and services used in works contracts as per the GST rules.
• But under Section 17(5), ITC is blocked on works contract services received for construction of immovable property (other than plant and machinery), except where the service is used to supply a further works contract service. The goods and services received by a person for construction of immovable property on his own account, other than plant and machinery, are also blocked, even when used for business.

7. Invoice and Documentation

• The contractor needs to issue GST-compliant invoices containing the GSTIN, description of the work, SAC, taxable value, GST rates, and amount.
• Good records need to be kept of work orders, running account bills, advance payments, measurement books and payments.

8. GST Returns and Payments

• Registered contractors must file all GST returns, including GSTR-1 and GSTR-3B.
• This will help avoid interest and late filing penalties. See our GST return filing service and common mistakes in GST return filing.

9. Reverse Charge Mechanism (RCM)

• In some construction transactions, the recipient can be made liable to pay the GST via the Reverse Charge Mechanism.
• Common cases include services of goods transport agencies, security services from non-corporate suppliers, legal services from advocates, and promoters’ purchases from unregistered suppliers.
• Both contractors and recipients need to consider the kind of transaction and the notification to figure out who is supposed to discharge the GST liability. RCM tax is paid in cash, and ITC on it can be claimed in the next return, subject to Section 17(5).

10. Compliance in the Context of Government Works

• Contractors involved in government works and other public works need to be acquainted with GST classification, associated rates, tax deductions, invoices, and other documentation procedures.
• Under Section 51, government departments and notified agencies deduct 2% GST TDS (1% CGST and 1% SGST, or 2% IGST) when the value of the taxable supply under a contract exceeds ₹2.5 lakh. The deductor files GSTR-7, and the amount shows up in your electronic cash ledger, which you can use against your liability. Match it every month to avoid short credit.
• Tamil Nadu contractors working for state departments, local bodies and public sector undertakings are likely to see this deduction on their bills.

In summary, knowledge of GST rules in regard to works contracts helps contractors identify their tax obligations, claim input tax credit, and comply in their construction projects.

Input Tax Credit (ITC) for Real Estate and Construction and Works Contracts

The Input Tax Credit (ITC) under the GST framework allows eligible companies to claim a credit for the amount of GST paid on items and services used for business purposes. Nevertheless, eligibility for ITC in the context of real estate, construction and works contracts depends on particular requirements stipulated in the CGST Act of 2017. The key requirements are stated below:

1. Meaning

• Input Tax Credit (ITC) is the credit for the amount of GST paid on expenses related to business, including the costs of construction materials, equipment, professional services and other items.
• It helps companies to reduce the amount of GST payable by setting off input taxes against GST payments made.

2. ITC for Real Estate Businesses

• Developers and builders in the real estate sector can claim ITC according to the type of their projects and the GST rate regime applied.
• Yet, developers who apply the prescribed concessional rates of GST for residential flats (1% or 5%) cannot claim ITC. The tax on their inputs becomes a cost, so buying from registered suppliers matters.
• Where a project is taxed at the regular rate with ITC, such as commercial space, ITC is available but must be reversed in proportion for any exempt sale after the completion certificate.

3. ITC for Works Contract Services

• Organisations providing construction services will be entitled to ITC on goods and input services required for completion of taxable works.
• But there are limitations on goods and services used for developing immovable property on one’s own account, with statutory exceptions.

4. ITC Limitations Under Section 17(5)

• Section 17(5) of the CGST Act blocks ITC on works contract services used for construction of immovable property, unless they are used to make a supply of another works contract service.
• ITC is further blocked on goods and services used for construction of immovable property on your own account, even when it is for business or commercial use, such as a factory building, warehouse, mall or office you plan to rent out. Plant and machinery is the exception. The Finance Act, 2025 changed the wording from “plant or machinery” to “plant and machinery” with effect from 1 July 2017, which narrows the exception after the Supreme Court’s Safari Retreats ruling. Take professional advice before claiming ITC on any building.
• Land, buildings, civil structures, telecom towers and pipelines outside the factory premises do not count as plant and machinery for this purpose.

Read our guides to blocked credit under GST and the basics of input tax credit.

Typically Allowed	Typically Blocked
Cement, steel, bricks and sand used in a works contract you supply to a customer	Cement and steel used to build your own factory, office or rental building
Plant and machinery such as cranes, batching plants and mixers	Civil structures, buildings and land development on your own account
Input services such as design, supervision and equipment hire for taxable works	Works contract services used to construct your own immovable property
Services used to make a further works contract supply	Motor vehicles for personal use, food and beverages, and club memberships

5. ITC for Subcontractors

• Subcontractors supplying taxable works contract services will be able to avail ITC on materials and input services required for completion of the contract.
• The credit shall comply with GST requirements and shall not belong to the restricted category of credits.

6. Requirements for Claiming Input Tax Credit

• Companies shall have proper tax invoices or prescribed documents, receive the supplies, ensure that the supplier’s invoice details match GSTR-2B, pay the supplier within 180 days, discharge their tax liabilities and file the prescribed GST returns.
• The last date to claim ITC for a financial year is 30 November following the year-end, or the date of filing the annual return, whichever is earlier.

7. ITC Apportionment and Reversal

• Where inputs or input services are used for both taxable and exempt supplies, or for both business and non-business purposes, ITC shall be properly apportioned under Rules 42 and 43.
• Ineligible credits and excess ITC shall be reversed as required by GST legislation. Builders selling flats after the completion certificate must reverse ITC attributable to the exempt sale.

8. Documentation

Real estate developers, contractors and construction companies need to maintain purchase invoices, project-wise expenditure details, agreements, payments, and ITC reconciliation. Accounting software helps here. See our GST software and accounting services.

In conclusion, real estate developers, builders and works contractors need to understand ITC in order to pay the right GST liability and avoid claiming ineligible credits.

Sale of Flats, Land and Completed Property

• Under-construction flats: treated as a supply of construction services, taxed at 1% (affordable) or 5% (other residential) effective rates without ITC, or at the regular commercial rate with ITC.
• Completed property: GST does not apply to a sale after the completion certificate is issued, so check the certificate date before agreeing to pay GST.
• Land: the sale of land is outside GST.
• Stamp duty: stamp duty and registration charges are separate and payable in addition to GST. GST does not replace them.
• Advances: GST on under-construction flats is payable as instalments and advances are received, because the earlier of invoice or payment triggers the tax.

Joint Development Agreements and Reverse Charge for Promoters

In a Joint Development Agreement (JDA), a landowner transfers development rights to a developer in return for constructed flats or a share of revenue. The transfer of development rights is a supply of service, and in most cases the developer pays GST on it under the reverse charge mechanism. The time of supply is usually linked to the completion certificate or first occupation, and the treatment differs by deal structure, so the agreement should be drafted with GST in mind. Read our guide to GST on joint development agreements.

Promoters of residential real estate projects also face a procurement rule. They must buy at least 80% of inward supplies by value from registered suppliers. If the share is lower, the shortfall attracts GST under reverse charge, and purchases of cement from unregistered suppliers are taxed under reverse charge separately. Plan your procurement and vendor registrations around this from the start.

GST Registration and Returns for Builders and Contractors

A builder or contractor providing services must register once aggregate turnover crosses ₹20 lakh, and registration is mandatory earlier in cases such as inter-state supply where no exemption applies, reverse charge liability or casual taxable person status. Apply on the GST portal, or use our online GST registration service. If you add a site office or change details later, see GST registration amendment.

Return	Who Files It	Due Date
GSTR-1	Monthly filers	11th of the next month
GSTR-1 (QRMP)	Quarterly filers with turnover up to ₹5 crore	13th of the month after the quarter
GSTR-3B	Monthly filers	20th of the next month
GSTR-3B (QRMP)	Quarterly filers	22nd of the month after the quarter in Tamil Nadu
GSTR-7	Government and notified deductors of GST TDS	10th of the next month
GSTR-9 and GSTR-9C	Annual return above ₹2 crore, and reconciliation above ₹5 crore	31 December

Due dates are sometimes extended, so confirm on the GST portal. We also handle GST annual return filing.

GST for Real Estate and Construction in Chennai and Tamil Nadu

Tamil Nadu’s property market, from Chennai’s OMR, Sholinganallur and Porur corridors to Coimbatore and Madurai, runs on the same central GST rules, with SGST going to the Tamil Nadu government. A few local points matter.

• TNRERA registration: a project in Tamil Nadu needs registration with the Tamil Nadu Real Estate Regulatory Authority if the land exceeds 500 sq m or the project has more than eight apartments, and agents must register too. Keep your RERA and GST records aligned.
• Metro-city threshold: Chennai is treated as a metropolitan city, so an apartment qualifies as affordable only if its carpet area is up to 60 sq m and its value is up to ₹45 lakh. A larger Chennai flat falls under the 5% rate.
• Government contracts: contractors working for the Tamil Nadu Public Works Department, local bodies and public sector undertakings should expect GST TDS and should reconcile it monthly.
• Multiple sites: a contractor with sites across Tamil Nadu normally uses one GSTIN with additional places of business, but a site in another state needs a separate registration there. See GST registration in Chennai.

For other cities, see our GST registration pages for Coimbatore, Madurai, Trichy, Salem, Hosur and Erode. Planning the business entity? See private limited company registration and LLP registration. MSME contractors can add Udyam registration.

Penalties and Interest

Default	Consequence
Late filing of a return	₹50 a day (₹20 a day for nil returns), plus interest at 18% a year on unpaid tax
Wrong or excess ITC claimed and used	Interest at 24% a year, and penalty where it is wilful or fraudulent
Not registering when liable	Penalty of ₹10,000 or the tax evaded, whichever is higher
Short deduction or non-payment of GST TDS	Interest and penalty on the deductor under the GST law
Taking blocked credit under Section 17(5)	Reversal with interest, and a possible demand notice

Received a notice on ITC or rate classification? See our GST notice reply service.

Common Mistakes to Avoid

• Claiming ITC on construction of your own factory, office or rental building.
• Charging the old 12% rate on government works after 22 September 2025.
• Claiming ITC while opting for the 1% or 5% residential rates.
• Charging GST on a flat sold after the completion certificate.
• Ignoring GST TDS credit that shows in the cash ledger.
• Missing the 80% registered-supplier test for promoters.
• Ignoring the Section 17(5) change from “plant or machinery” to “plant and machinery”.
• Not matching supplier invoices with GSTR-2B before claiming credit.

Conclusion

GST plays an important role in regulating taxation within the property and construction sector, especially in relation to works contracts that involve immovable property. An awareness of proper tax rates, input tax credit rules, invoicing rules, and legal requirements helps developers, constructors, and contractors in the management of their taxes. Compliance with GST in good time ensures proper transparency, reduces chances of being fined, and helps with the smooth implementation of projects. Businesses need to keep abreast of any new GST requirements to ensure sustainability.

Frequently Asked Questions

1. What is the GST rate of works contract services?

The general GST rate of works contract services is 18%. Several works contracts that were earlier taxed at 12%, such as certain government civil works, moved to 18% from 22 September 2025. Check the current entry in the notification for your type of work.

2. Is ITC available for real estate developers?

It depends upon the nature of the project and the GST rate applied. If the developer has opted for the 1% or 5% rates for residential buildings, ITC is not available. For commercial space taxed at the regular rate, ITC is available, subject to Section 17(5) and reversal for any exempt sale.

3. Is ITC available in case of construction of immovable property?

Generally no. ITC is blocked on goods and services used to construct immovable property on your own account, even if it is used for business, except for plant and machinery. There is an exception for works contract services used to provide further works contract services.

4. Is there any possibility for contractors to claim ITC for construction material?

Yes. Contractors can claim ITC for GST paid on construction material, equipment and services used for taxable works contracts, provided the criteria under the CGST Act are satisfied and the credit does not fall within the blocked category.

5. What are the GST return requirements for construction companies?

Regular registered construction companies file GSTR-1 and GSTR-3B, monthly or quarterly under QRMP, and an annual return above ₹2 crore. Government deductors file GSTR-7.

6. What is the GST on under-construction flats?

Effectively 1% for affordable housing and 5% for other residential apartments, both without ITC for the builder. Commercial space is taxed at the regular rate with ITC.

7. Is GST payable on a ready-to-move flat?

No, if the completion certificate was issued before the sale. Stamp duty still applies.

8. Is GST payable on land?

No. The sale of land is outside GST.

9. What is GST TDS on works contracts?

Government departments and notified agencies deduct 2% GST on payments under a contract exceeding ₹2.5 lakh. The deducted amount is credited to your electronic cash ledger.

10. Who pays GST on a joint development agreement?

In most cases, the developer pays GST under reverse charge on the transfer of development rights, while the developer also charges GST on flats supplied to the landowner. Structure and timing differ, so get the agreement reviewed.

11. Does a Chennai flat qualify as affordable housing?

Yes, if the carpet area is up to 60 sq m and the value is up to ₹45 lakh, since Chennai is a metropolitan city for this purpose.

12. Is GST registration needed for small contractors?

Yes, once aggregate turnover crosses ₹20 lakh for services, and earlier in cases such as reverse charge liability or casual taxable status.

GST Compliance Simplified with Kanakkupillai

Compliance with GST requirements in relation to real estate, construction, and works contracts involves a comprehensive knowledge of the tax rates and Input Tax Credit systems. Kanakkupillai, a Chennai-headquartered legal and compliance services company with 19+ years of experience and 1 lakh+ customers served, provides reliable GST solutions that include registration, returns, tax planning, and compliance assistance. Our team of professionals helps real estate developers, construction companies, and contractors deal with GST regulations and allows them to concentrate on their core business operations.