Ask a builder how sales are going and you will hear about bookings. Ask the same builder why the current slab is stuck and you will hear about collections. Those are two different businesses. A booking is a promise. Cash arrives only when a demand is raised against a construction milestone, sent to the right buyer, and paid — and the distance between the promise and the payment is where most small and mid-sized developers quietly lose control of their own project.
A booking is not cash. A demand that gets paid is.
Most residential sales in India run on a construction-linked plan. The buyer does not pay in one shot; they pay in instalments tied to progress — on booking, on foundation, on each slab, on brickwork, on handover. Every one of those instalments is triggered by a demand letter: a document that says a defined stage has been reached, here is the amount now due, here is the tax on it, pay by this date. The demand letter is not paperwork around the sale. For a builder, it is the sale — repeated eight or ten times per unit, across every unit, for the life of the project.
When that engine runs cleanly, a builder can look at any tower and know exactly how much has been demanded, how much collected, and how much is overdue. When it does not, the project runs on the promoter's memory and a set of Excel sheets that only one person understands — and that person is on leave when the slab money is needed.
Where construction-linked collections leak
- A milestone is certified on site, but the demand goes out days or weeks late — so the cash that should fund the next stage arrives after it was needed.
- A unit has two co-buyers, and the demand does not split cleanly — nobody is sure who owes what, so neither pays in full.
- Part-payments land in the bank but are not reconciled to the right unit and the right demand, so the ledger and the account drift apart.
- Interest on delayed instalments is written into the agreement but never actually charged, because calculating it by hand is nobody's favourite job.
- The GST line on the demand is wrong — wrong rate, wrong taxable value — and the buyer disputes it, freezing the whole instalment.
- The 70% that RERA says must sit in a separate account for land and construction is tracked, if at all, in a spreadsheet that no auditor would trust.
Every one of these is ordinary. None of them is fraud. They are what happens when the instrument that drives your cashflow is generated by hand instead of by a system that knows the plan, the buyer, the milestone and the tax rule at the same time.
The GST line on a demand letter is not decoration
Under-construction residential property is taxed at 5% GST without input tax credit, or 1% for affordable housing — carpet area up to 60 sq m in metros or 90 sq m elsewhere, and value up to ₹45 lakh — again without ITC. GST is charged only on the construction component: the rules allow a standard one-third deduction toward the value of land, which is not taxed. And the moment a project receives its completion certificate, a sale of a ready unit attracts no GST at all. That is a lot of conditions to get right, and they are getting applied on every demand letter you raise. Put the wrong rate on a demand, or tax the land portion by mistake, and you have not made an accounting error — you have handed a buyer a reason to not pay this instalment until it is "sorted out."
Co-buyer splits and part-payments
Joint ownership is the norm — husband and wife, parent and child, two brothers. A single unit generates a single demand, but the money often comes in two cheques from two people on two dates. If your system cannot hold a co-buyer split and reconcile a part-payment against it, every joint booking becomes a manual puzzle. Multiply that by a tower and the "collections report" becomes a fiction that is re-typed the night before a review meeting.
A builder does not need a fancier CRM. A builder needs to know, at any moment, exactly what has been demanded, what has been collected, and what is overdue — by unit, by buyer, by milestone.
Sell.Do, Zoho, LeadRat — and the gap
These are all real products, and they are good at what they were built for. Sell.Do is a genuinely real-estate-native platform, but it is priced for developers with real marketing budgets — think tens of thousands of rupees a month, not hundreds — and much of that value is on the lead and marketing side. Zoho is a superb general-purpose CRM that a builder can bend into shape, but bending is the operative word: it does not know what a construction-linked demand or a co-buyer split is until you build it. LeadRat is sharp on lead capture and follow-up. The common gap is the same: they help you win the buyer, and they go quiet exactly where the money is — the demand-to-collection-to-GST-to-escrow chain that a one-to-three-project builder lives or dies on.
How BizRevolt handles the money side
BizRevolt's real-estate workspace treats collections as the core, not an afterthought. Demand letters are tied to your construction milestones and raised on time. Co-buyer splits are first-class, so joint bookings reconcile without a puzzle. Part-payments post against the correct unit and demand. The GST on each demand follows the rule for that unit — 5% or 1%, land deducted, ready units exempt. Live unit availability means sales and collections look at the same truth, and a buyer self-service view means allottees can see their own demands and payments without a phone call to your office.
- Starter — ₹999/user/month: leads, bookings, demand letters and collections for a single project.
- Growth — ₹1,599/user/month: multi-project, co-buyer splits, interest on delays and buyer portal.
- Scale — ₹2,499/user/month: channel-partner commissions, deeper reporting and consolidated collections.
If your collections live in one person's spreadsheet, the risk is not just an audit — it is that you cannot fund your own next slab without a scramble. We are building this alongside builders running one to three projects, and we would rather see how your demand cycle actually works than assume. Message or call the founder directly on +91 91 0657 4865, and we will map your milestone plan to a real demand-and-collection ledger.
Image credit: Biswarup Ganguly, CC BY 3.0 / CC BY-SA 3.0, via Wikimedia Commons.