How to Track GST on Under-Construction Properties with Your Real Estate CRM in India
GST on under-construction properties is the single most misunderstood compliance area in Indian real estate. Buyers are confused by it, agents get blamed for it, and a single rate error can derail a booking. Using a real estate CRM to track GST on under-construction properties in India is no longer a nice-to-have — it’s how serious agencies avoid disputes, catch developer errors, and close deals without last-minute surprises.
This guide covers the rules in plain language, explains why GST is your problem as an agent (even though the developer collects it), and gives you a step-by-step system to track every GST rupee in your CRM — from project setup to possession.
GST on Real Estate — The Rules in Plain English
GST has applied to under-construction properties in India since 1 July 2017. The April 2019 amendment simplified and lowered the rates. Here is exactly where things stand in 2026:
| Property Type | GST Rate | ITC Available? | Key Condition |
|---|---|---|---|
| Affordable residential (PMAY-linked) | 1% | No | Price ≤ ₹45 lakhs; carpet area ≤ 60 sq m in metros / ≤ 90 sq m in non-metros |
| Non-affordable residential (under construction) | 5% | No | All other residential units under construction |
| Commercial (under construction) | 12% | Yes (for business buyers) | Offices, shops, commercial spaces |
| Ready-to-move (OC/CC received) | Nil | — | No GST if Occupancy Certificate issued before sale |
| Plot / land sale | Nil | — | Land transactions are exempt from GST |
The rule that catches buyers off guard the most: GST applies only when the property is under construction at the time of booking and payment. Once the developer receives the Occupancy Certificate (OC), subsequent payments attract zero GST. This means the same project can switch from 5% GST to 0% mid-construction — and your CRM must capture that change the moment it happens.
What is not taxable under GST:
- Ready-to-move flats where OC has been issued
- Resale / secondary market transactions
- Pure land and plot sales
- Government housing schemes where GST is separately absorbed
For your buyers in cities like Mumbai, Pune, Bengaluru, Hyderabad, and Chennai — where the majority of inventory is under-construction — the 5% or 1% GST is a real cost they need to budget for upfront. Agents who explain this clearly at first enquiry avoid far more disputes than agents who leave it for the developer’s demand letter.
Why Under-Construction GST Is an Agent Problem, Not Just a Developer Problem
The developer collects GST. The developer issues the GST invoice. The developer remits it to the government. So why does this become your problem?
Because buyers call you, not the developer, when they don’t understand the charge.
Here is what actually happens on the ground:
- A buyer in Noida or Navi Mumbai gets their first demand letter from the developer. They see “GST: ₹1,87,500” on a ₹37.5 lakh instalment. They have no idea what this is. They call you.
- A developer in Hyderabad continues charging 5% GST on a project that received OC three months ago. Without a CRM flagging the OC date, neither you nor the buyer catches the error.
- A business buyer in Gurugram purchases a commercial office under construction. The 12% GST they pay is fully claimable as Input Tax Credit (ITC) against their business GST liability — but no one flags this, and they miss a legitimate claim worth several lakhs.
- An NRI buyer in Dubai asks you why they’re paying “tax” on an under-construction flat in Bengaluru when they didn’t pay any VAT in the UAE. You need to explain the difference clearly, in writing, before they escalate.
- A mixed-use tower in Pune has affordable and non-affordable units. The affordable 2BHK below ₹45 lakhs gets 1% GST; the 3BHK at ₹68 lakhs gets 5%. A deal team applying the wrong rate causes a booking dispute weeks later.
Every one of these scenarios is preventable — if your agency tracks GST at the project and deal level in a real estate CRM.
How to Set Up GST Tracking in Your Real Estate CRM
Project-Level GST Fields
Every project in your CRM should carry these fields before a single lead is assigned to it:
- GST Applicable: Yes / No (set to No for plots and ready-to-move inventory)
- GST Category: Affordable (1%) / Non-Affordable Residential (5%) / Commercial (12%)
- Developer GSTIN: The developer’s 15-digit GST Identification Number — required for invoice verification
- Base Price (Ex-GST): The agreement value excluding tax
- GST Amount: Calculated at the category rate
- Total Price (Inclusive of GST): What the buyer actually pays
- OC Status: Not Received / Expected Date / Received (with date)
- OC Received Alert: Trigger notification to all active deal owners when status changes to “Received”
The OC status field is the most critical. The moment a developer receives OC, every active deal on that project must be updated — and any pending demand letters must be reissued without GST. A CRM with project-level alerts ensures this change cascades automatically.
Deal / Booking-Level GST Fields
Once a buyer books a unit, these fields must be tracked at the deal level:
- GST Rate Applied: Auto-populated from the project; manually overridable for edge cases
- Total Base Price Agreed: As per the builder-buyer agreement
- Total GST Amount on Deal: Calculated field based on rate and base price
- Latest GST Invoice Number: From developer’s most recent demand
- Latest GST Invoice Date: For audit trail purposes
- ITC Applicable: Yes / No — set to Yes only for commercial unit buyers with GSTIN
- Buyer GSTIN (for ITC): If the buyer is a business claiming input credit
Payment Milestone GST Tracking
Under-construction transactions are almost always milestone-based — construction linked or time-linked demand schedules. Each demand letter is a separate GST event. Your CRM payment milestone module should capture:
- Milestone Name: e.g., “Foundation Completion”, “3rd Floor Slab”
- Base Amount: Amount before GST
- GST Amount: At the applicable rate for that milestone
- Total Due: Base + GST
- Due Date: As per developer schedule
- Payment Status: Pending / Paid / Overdue
- Invoice Number: Developer’s GST invoice for this milestone
- Invoice Date: Date of developer’s tax invoice
- Automation trigger: When milestone is marked “Paid” → create task “Verify GST invoice received and filed by buyer”
This structure means your team can answer any buyer query — “What is my total GST liability so far?” or “What GST did I pay in the October instalment?” — in under 30 seconds, without calling the developer.
Five GST Errors a CRM Prevents
These are the most common GST mistakes Indian real estate agencies make when working without a structured CRM:
-
Quoting total price without separating GST. A buyer is quoted ₹85 lakhs “all in.” At booking, they discover ₹4 lakhs of that is GST — money that goes to the government, not toward their property. The agent looks deceptive. Always quote base + GST separately from the first conversation.
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Missing the GST component on a demand letter. When an agent forwards a demand letter to a buyer without reviewing it, and the GST calculation is wrong (or the developer has used the old rate), the buyer overpays — and recovering that money from a developer is an extended process.
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Not updating OC status when the certificate is received. This is the most financially damaging error. If a project receives OC in March and demand letters continue to include 5% GST through June, that’s three months of wrongly collected tax. Per CBIC guidance, GST should not be charged after OC is received. An alert on OC status change in your CRM prevents this entirely.
-
Not flagging ITC eligibility for commercial buyers. A business buying a ₹2 crore commercial office under construction in Chennai pays ₹24 lakhs in GST. That ₹24 lakhs is fully claimable as ITC if the buyer has a valid GSTIN and the property is for business use. Failing to flag this is a significant disservice to your buyer.
-
Applying the wrong rate in mixed-development projects. Builders in cities like Navi Mumbai, Noida, and Hyderabad regularly develop towers with both affordable (sub-₹45 lakh) and non-affordable units. Applying 5% across the board on an affordable unit, or 1% on a unit that doesn’t qualify, creates a documentation problem that surfaces during audits.
Buyer Communication Workflow with GST
A well-structured GST communication workflow does more for your agency’s reputation than any marketing spend. Here is the standard process:
At the time of booking: Send a WhatsApp message (or email) with a clear GST breakdown:
- Unit base price: ₹X
- Applicable GST rate: Y%
- Total GST payable across all instalments: ₹Z
- Note: GST does not apply if OC is received before payment
At each demand letter: Share a breakdown that itemises base amount and GST separately for that milestone. Do not just forward the raw demand letter — contextualise it. Buyers who understand each charge raise fewer escalations.
When OC is received:
- Update project status in CRM immediately
- Send a notification to all active buyers: “Good news — [Project Name] has received its Occupancy Certificate. Payments from this point onward will not attract GST.”
- Confirm with the developer that future demand letters are issued without GST
For NRI buyers: Many NRI buyers from the UAE, UK, Singapore, or the US are accustomed to VAT-free real estate transactions in their countries of residence. Use your buyer portal to share a concise, written GST explainer — what it is, why it applies, and what the exact amount is for their unit. This pre-empts the most common NRI buyer friction point and establishes your agency as a credible, transparent advisor.
Without CRM vs With CRM: GST Management Comparison
| GST Management Task | Without CRM (Manual/Spreadsheet) | With Real Estate CRM |
|---|---|---|
| GST rate tracking per project | Manually updated, prone to error | Set once at project level, auto-applied to all deals |
| Payment milestone GST breakdown | Calculated manually per demand | Automated per milestone with base + GST split |
| Developer GSTIN on file | Stored in email thread or not stored | Structured field, searchable, auditable |
| OC status alerts | No alert system | Automatic notification when OC status updated |
| GST calculation on demand letters | Agent does mental math or uses calculator | CRM calculates and displays on deal record |
| ITC flag for commercial buyers | Missed unless agent remembers | Yes/No field with GSTIN capture |
| NRI GST explanation workflow | Ad hoc; varies by agent | Standardised via buyer portal and WhatsApp template |
| Audit trail for all GST payments | No structured record | Full timeline per deal, exportable |
| Buyer query resolution | Call developer, wait for answer | Agent answers in <1 minute from CRM |
| Agent GST error rate | High (especially in mixed projects) | Near-zero with rate auto-population |
The operational gap is significant. Agencies managing 50+ active deals across multiple projects simply cannot maintain this accuracy in a spreadsheet — not without hiring a dedicated compliance coordinator.
How Realatic Handles GST for Real Estate Agencies
Realatic’s real estate CRM is built specifically for the Indian market, which means GST tracking is part of the core product — not a workaround or an add-on.
Here is how it works in practice:
Project Setup: When you create a project in Realatic, you define GST applicability, category (1% / 5% / 12%), developer GSTIN, and OC status. Every deal created under that project inherits these values automatically. When OC status changes, all deal owners are notified instantly.
Deal-Level Compliance: Each booking record carries a GST summary — total base price, total GST, rate applied, and ITC flag for commercial deals. The RERA compliance module complements this by ensuring that builder-buyer agreements reflect accurate GST terms alongside RERA registration details.
Payment Milestone Module: Realatic’s 12 real estate modules include a dedicated payment tracking module where each demand letter is recorded as a milestone. Base amount, GST amount, due date, invoice number, and payment status are tracked end to end. Agents see the full payment history — with GST itemised per instalment — on a single screen.
WhatsApp Inbox (Free): Realatic includes a WhatsApp inbox at no additional cost. Your team can send GST breakdowns at booking, milestone reminders with base + GST split, and OC notifications — all from within the CRM, with full conversation history retained.
Buyer Portal: NRI buyers and outstation investors can log into the buyer portal to view their complete payment history, with GST amounts displayed per instalment. This eliminates the back-and-forth that typically consumes hours of agent time each month.
Pricing that works at every scale:
- Free plan: 3 users, 100 leads/month, 1 project — no credit card required. Ideal for individual brokers testing the system.
- Growth plan: ₹499/user/month — full lead and deal management for growing agencies.
- Pro plan: ₹1,199/user/month — advanced automation, AI lead scoring, and full compliance modules.
Setup takes 1–2 days. Your team can be tracking GST on live deals by the end of the week.
FAQ: GST on Under-Construction Properties in India
Does GST apply to under-construction properties in India in 2026?
Yes. GST has applied to under-construction properties since July 2017. The current rates (post-April 2019) are 1% for affordable housing, 5% for non-affordable residential units, and 12% for commercial properties. Once a developer receives the Occupancy Certificate, GST no longer applies to subsequent payments.
What is the GST rate on residential under-construction flats in India?
For most buyers, the applicable rate is 5% GST on the base price of an under-construction flat. If the unit qualifies as affordable housing — priced at ₹45 lakhs or below, with a carpet area of 60 sq m or less in metros and 90 sq m or less in non-metros, and linked to PMAY — the GST rate drops to 1%. There is no ITC available for residential buyers at either rate.
Can buyers claim ITC on GST paid for under-construction flats?
Residential buyers (individuals purchasing for personal use) cannot claim Input Tax Credit on GST paid for under-construction flats, whether at 1% or 5%. However, a business purchasing an under-construction commercial property (at 12% GST) can claim the full GST amount as ITC, provided the property is used for business purposes and the buyer has a valid GSTIN. This is a meaningful benefit that agents should proactively flag for all commercial deal buyers.
Is GST applicable on ready-to-move properties in India?
No. Ready-to-move properties where the developer has received the Occupancy Certificate (OC) or Completion Certificate (CC) are exempt from GST. This is one of the most significant cost advantages of buying a ready-to-move unit. The exemption also applies to resale transactions in the secondary market. Agents handling both under-construction and ready-to-move inventory must ensure their CRM reflects OC status accurately, since the same project can transition from taxable to exempt mid-sale.
How should a real estate agent explain GST to buyers in India?
Keep it simple and proactive. At the first site visit or enquiry response, share a written breakdown:
- “The base price of this flat is ₹X. Since the project is currently under construction, 5% GST applies — that’s ₹Y. Your total cost is ₹Z.”
- “GST is a government levy collected by the developer and deposited with GST authorities. It is not part of the developer’s revenue.”
- “Once the project receives its Occupancy Certificate, payments made after that date will not attract GST.”
- For NRI buyers: “This is equivalent to VAT/sales tax in other countries — applicable only during the construction phase.”
Agents who explain this clearly in the first conversation close deals faster and receive fewer escalations after booking.
Start Tracking GST on Under-Construction Deals Today
GST on under-construction properties in India will remain a compliance challenge as long as agents are managing it through spreadsheets and memory. The errors are predictable, the disputes are avoidable, and the audit exposure is real.
Realatic is built for exactly this. From project-level GST configuration to milestone-level payment tracking, buyer portal transparency, and WhatsApp-based GST breakdowns — everything you need to manage real estate CRM GST for under-construction properties in India is available out of the box, with setup in 1–2 days and a free plan that requires no credit card.
See how Realatic handles GST, RERA compliance, payment milestones, and 12 real estate modules purpose-built for Indian agencies at Realatic Features.