Summary: The article explains the GST and income-tax treatment applicable from 01.04.2025 to small residential builders who regularly acquire vacant sites, construct residential properties, and sell them as a business. It clarifies that such builders should not automatically be treated as works contractors for GST purposes. Instead, their activities must be examined under the promoter/developer framework. Under-construction residential units sold by a promoter generally attract GST at 1% for affordable housing or 5% for other residential apartments without ITC, while sales after completion certificate or first occupation are generally outside GST. The 18% GST rate mainly applies to works contract services supplied by contractors to promoters. For income tax, repeated construction and sale ordinarily constitute business income, requiring proper computation of profit after considering land cost, construction expenses, WIP, and unsold stock rather than treating bank deposits as income. The article also highlights the importance of project-wise accounting, documentation, and reconciliation for GST and income-tax compliance.
GST and Income-Tax Position of Small Residential Builders from 01.04.2025 – Why Every Construction Activity Is Not 18% Works Contract
Abstract
In many cities, small builders still describe themselves simply as “contractors,” even when they take vacant sites on their own account, construct residential buildings, and sell them to buyers as a regular business. Tax law does not stop with that label. For GST, such activity has to be tested under the real-estate/promoter framework, not automatically treated as 18% works contract in every case. For income tax, repeated construction and sale is normally business income, not a mere bank‑deposit event. From 01.04.2025, the interplay between GST classification and the new income-tax regime up to ₹12 lakh has become more important for these small residential builders.
This article discusses the GST and income-tax issues for an individual who regularly takes vacant sites, constructs only residential properties, and sells them, doing four or five buildings a year. The aim is to highlight how the law actually applies, using practical language and examples, so that taxpayers and practitioners can guide such clients correctly.
1. The business model – contractor or promoter?
In practice, three different models are often mixed up as “construction”:
A person constructs a building for someone else for a fixed price – the classic works contract.
A person takes or acquires land, constructs on his own account, and sells units or the whole property – this is closer to a builder/promoter/developer model.
A person completes the property, obtains completion certificate, and then sells the completed immovable property – this raises a different GST result.
In the case you have described, the client is not merely a contractor working for a landowner. He takes vacant sites, constructs residential buildings, and sells them as his own business venture, year after year. Commercially, this is the promoter/developer profile, and both GST and income tax need to be analysed on that basis rather than as a simple works contract.
2. Is GST automatically 18% because it is “construction”?
A common assumption is: “Construction means 18% GST as works contract.” That is not correct for every situation.
The GST Council’s FAQ on real estate states that, for projects commencing on or after 01.04.2019, construction of residential apartments by a promoter is taxed as follows:
Affordable residential apartments – 1% without ITC.
Residential apartments other than affordable – 5% without ITC.
Sale of residential property after completion certificate or first occupation is generally treated as sale of completed immovable property and is outside GST for that sale.
On the other hand, works contract service supplied by a contractor (for example, a civil contractor working for a promoter) attracts 18% in many cases, including construction of residential apartments other than affordable, where the contractor is providing construction services to the promoter.
So, we have two different layers:
The promoter’s outward supply to homebuyers – typically 1%/5% without ITC for under‑construction residential units, or nil when sold after completion.
The contractor/sub‑contractor’s outward supply to the promoter – often 18% as works contract service.
individual client, who takes land and sells his own residential units, is usually standing in the promoter’s shoes for GST purposes. His outward supply to buyers is not automatically 18% works contract. It must be classified under the promoter residential scheme or considered as sale of completed immovable property, depending on timing and project structure.
3. Timing of sale – the GST turning point
For small builders, the single most important GST question is not “contractor or developer,” but when the sale happens.
The broad position is:
If the residential unit is sold before completion certificate or first occupation (i.e., under‑construction sale), GST applies under the promoter scheme – 1% for affordable residential apartments and 5% for other residential apartments, without ITC.
If the residential property is sold after completion certificate or first occupation, the sale is generally treated as sale of completed immovable property and falls outside GST.
This can lead to mixed GST results in the same project.
Example 1: Mixed project – two units booked early, two units sold later
A builder acquires a site and constructs four residential flats:
During construction, two flats are booked. Buyers pay instalments before completion certificate is issued.
After completion certificate, two flats are sold to different buyers, with full consideration received post‑completion.
Result:
The first two flats – sale before completion – are taxable under GST (1%/5% without ITC, depending on classification).
The other two flats – sale after completion – are not liable to GST on that sale; they are treated as sale of completed immovable property.
Thus, your client’s GST liability is not uniform across all flats. Each unit’s sale timing must be documented carefully.
4. Threshold and registration – why ₹20 lakh is not the full story
If your client’s aggregate turnover exceeds ₹20 lakh, registration exposure under GST arises in the normal course, subject to state‑specific thresholds and notifications. However, crossing the threshold does not tell us the rate or even whether GST applies to all receipts.
The correct sequence is:
Identify whether the client is acting as promoter/developer or as a works contractor.
Determine whether each unit is sold before or after completion/first occupation.
Classify the outward supply under the promoter residential scheme or as sale of immovable property.
Then examine registration, invoicing, return filing and payment obligations.
If we jump from “₹20 lakh exceeded” directly to “pay 18% on everything,” we will mis‑advise the client and invite future dispute.
5. GST rates to mention presently
For publication, the present broad position on GST rates for residential promoters and works contractors can be stated as:
Affordable residential apartments by a promoter – 1% without ITC.
Residential apartments other than affordable by a promoter – 5% without ITC.
Sale after completion certificate / first occupation – generally outside GST as sale of completed immovable property.
Works contract service (contractor to promoter, many construction services) – typically 18%.
If you wish, for a particular article you can focus only on non‑affordable residential and works‑contract situations and frame the discussion around 5% and 18%. But if you do so, it is better to say explicitly that you are not discussing affordable housing projects in that piece, rather than implying that 1% rate is gone.
6. Input tax credit and procurement discipline
Under the present residential promoter scheme, the 1% and 5% rates apply without ITC. That means:
GST paid on many inputs and input services may need to be treated as cost, not as available credit.
Project costing, pricing, and margin calculation must factor this in at the planning stage.
Real‑estate guidance also discusses procurement conditions such as:
At least 80% of procurements from registered suppliers, failing which reverse‑charge obligations may arise.
Specific treatment for cement purchased from unregistered persons.
For a small residential builder, this is not an academic issue. Vendor discipline, tax‑invoice collection, and correct classification of inward supplies are central to GST risk management.
7. Income-tax side – this is business income, not “bank equals income”
Turning to income tax, your client’s activity is a business. He repeatedly undertakes construction and sale of residential buildings, and the bank account reflects sale proceeds from multiple units. This is normally taxable under the head “Profits and Gains of Business or Profession”, not as capital gains and certainly not as “everything credited in bank equals taxable income.”
The taxable income is the profit after considering:
Land cost and related charges.
Construction materials and labour.
Sub‑contractor payments.
Professional, approval and supervision fees.
Finance cost where allowable.
Administrative and site overheads.
Closing stock or work‑in‑progress for unsold units and incomplete projects.
In a multi‑project environment, WIP valuation becomes the backbone of income computation. If unsold units or partly completed projects are ignored, the reported profit will not match the commercial reality and the bank credits.
8. New regime from 01.04.2025 – relief up to ₹12 lakh, but only after computing business income
Budget 2025 proposed significant changes to the default new regime under section 115BAC for individuals, HUFs, etc., effective from AY 2026‑27 (FY 2025‑26). Key points include:
Revised slabs – Nil up to ₹4 lakh, 5% from ₹4–8 lakh, 10% from ₹8–12 lakh, 15% from ₹12–16 lakh, 20% from ₹16–20 lakh, 25% from ₹20–24 lakh, and 30% above ₹24 lakh.
Enhanced section 87A rebate – full rebate up to total income of ₹12 lakh (excluding special‑rate incomes), with maximum rebate of ₹60,000, so that normal income up to ₹12 lakh under the new regime can effectively be tax‑free for resident individuals.
This is an important relief for individual small builders who opt for the new regime. But the sequence is crucial:
Compute business profit correctly under the Act – including WIP and unsold stock.
Add other heads of income, if any.
Then apply the new regime slabs and the section 87A rebate.
The ₹12 lakh figure relates to taxable total income, not to gross sale receipts. A builder may have bank credits far above ₹12 lakh but a much lower taxable profit in a given year, or vice versa. Only the computed profit (and other income) feeds into the slab and rebate.
9. Section 44AD – should such a builder use presumptive taxation?
Section 44AD continues to attract attention in small business cases. Guidance material indicates that 44AD can apply to eligible businesses up to certain turnover thresholds, with deemed profit percentages and conditions.
However, in a land‑heavy, multi‑project builder environment, presumptive taxation raises practical questions:
High land cost and WIP often require detailed project accounting.
Profitability can fluctuate sharply between years depending on completion dates and stock position.
Bank credits, GST turnover, and reported income must reconcile sensibly.
For many such assessees, maintaining full books and proper project‑wise accounts is safer than trying to force a complex builder business into a single presumptive percentage. Any decision to use 44AD should be taken only after carefully comparing:
Actual margins.
Turnover patterns.
Cash vs digital receipts.
WIP and unsold stock behaviour.
10. Example – GST and income-tax together
Consider an individual builder for FY 2025‑26:
He undertakes one small residential project and sells four units:
Two units booked and sold before completion, with total consideration of ₹60 lakh.
Two units sold after completion certificate, for total consideration of ₹60 lakh.
Land cost allocated to the project – ₹35 lakh.
Construction materials – ₹28 lakh.
Labour and subcontract – ₹18 lakh.
Approvals, architect, supervision – ₹6 lakh.
Finance and admin costs – ₹5 lakh.
One additional unit is under construction at year‑end with WIP of ₹20 lakh.
GST side:
Under‑construction sales (₹60 lakh) to homebuyers – taxable under promoter scheme at 1%/5% without ITC, depending on classification as affordable or other residential.
Post‑completion sales (₹60 lakh) – outside GST as sale of completed immovable property.
Contractor/sub‑contractor supplies to the builder – may bear 18% GST as works contract services.
Income-tax side:
Total sales receipts during the year – ₹1.20 crore.
From this, normal business computation will:
Deduct land, construction, labour, approval, finance and admin costs.
Recognize closing WIP of ₹20 lakh for the incomplete unit.
The resulting figure is the business profit.
This profit then enters the new regime slab structure and section 87A rebate mechanism, subject to the client’s option and eligibility.
Bank credits by themselves do not equal profit or tax.
11. Record‑keeping under GST – project files, not loose bills
For GST, your client should maintain project‑wise documentation, including:
Land purchase deed or development agreement.
Approved plans, sanctions, commencement certificate.
Project register showing number of units, areas, booking dates and sale dates.
Buyer agreements, instalment schedules, tax invoices and receipts.
Evidence of amounts received through bank channels.
Vendor invoices for materials and services.
Labour and subcontract agreements.
E‑way bills and transport documents where relevant.
Completion certificate/occupancy certificate or proof of first occupation.
Monthly reconciliation of output tax, GST returns and books.
Procurement registers to monitor registered/unregistered sourcing and reverse‑charge issues.
Without these, classification and rate application will remain vulnerable.
12. Record‑keeping under income tax – project accounting and reconciliation
For income tax, maintain proper books and project accounts:
Cash book and bank book.
Ledger and trial balance.
Land‑cost register and site‑wise allocation.
Material inward register and stock register.
Labour payment registers and supporting muster sheets.
Site‑wise expense ledgers.
Customer advance and debtor ledgers.
Creditor and vendor ledgers.
Loan and interest statements.
Unsold unit register and WIP working at year‑end.
Copies of all filed GST returns.
Reconciliation of turnover as per books, GST data and bank accounts.
This reconciliation is now central to both departments. Where bank credits exceed disclosed sales or vice versa, explanations must be documented.
13. Practical advice for small residential builders
For small builders like your client, a few practical messages help avoid trouble:
Do not assume that every construction activity is 18% GST works contract.
Do not assume that residential sales are always outside GST because “it is a house.”
Do not treat total bank deposits as taxable income without computing profit.
Do not run multiple projects without project‑wise records and WIP tracking.
Do not postpone documentation until assessment notices arrive.
Look first at who is selling, what is sold, and when it is sold:
If the builder sells under‑construction residential units, GST applies at 1%/5% without ITC; the works‑contract 18% rate is more relevant to contractor‑to‑promoter supplies.
If he sells completed property after completion or first occupation, GST does not apply to that sale, but income tax still applies on business profit.
From 01.04.2025, the new regime slabs and enhanced rebate can make the final income-tax liability light for some individual builders, but only after proper computation of business income.
Conclusion
A small residential builder who takes sites, constructs houses, and sells them cannot be assessed only through the narrow lens of “18% works contract.” Under GST, the correct treatment depends on whether he is a promoter or a contractor, and whether each sale is before or after completion. Presently, under‑construction residential apartments sold by a promoter are taxed at 1% (affordable) or 5% (other residential) without ITC, while sales after completion certificate or first occupation are generally outside GST; 18% applies mainly to works‑contract and certain construction services, not to every residential sale.
Under income tax, the same activity is ordinarily business, and the law taxes profits, not bank deposits. From FY 2025‑26, the new regime’s relief up to ₹12 lakh through section 87A is meaningful for individual builders, but it operates only after the business income is computed correctly and reconciled with GST and bank data.
For such clients, good tax practice starts with correct classification, project‑wise accounting, and strong documentation. If these three pillars are in place, both GST and income-tax compliance become manageable. If they are ignored, even a small residential builder can quickly find himself in complex proceedings before two departments at the same time.
— S. Prasad
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