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An Indian real estate developer running a redevelopment project on an old-society or chawl plot must simultaneously reconcile three GST-relevant streams for the existing tenants — (a) the free replacement flats owed on completion, which is a Section 7(1) supply valued under Rule 27; (b) monthly rent paid during construction, which is consideration for the surrender of tenancy rights and may attract RCM GST at 18%; (c) TDR / FSI acquired from the tenants collectively, taxable at 18% RCM per Notification 4/2019-CTR to the extent attributable to unsold-on-CC-date units. Manual spreadsheet control across these three streams routinely misses either an OMV drift on Rule 27 or an RCM under-provisioning that surfaces two years later in a Section 74 notice.
Maintain a per-tenant register tying each existing tenant to their old carpet area, the replacement flat carpet area, the Rule 27 valuation basis, and the monthly rent commitment during construction. Value the free flat under Rule 27 waterfall — OMV via comparable free-sale bookings first, like-kind-and-quality next, cost-plus-10% only as last resort — and recompute quarterly as fresh free-sale bookings establish OMV. Compute TDR / FSI RCM liability at each quarter based on unsold-on-CC-date projections. Tie every rent payment in bank statement to the surrender-of-tenancy service ledger and to the RCM provisioning. Reconcile GSTR-3B output, GSTR-3B RCM inward, and GSTR-9 annual figures to the project ledger every month.
Project master keyed by RERA registration number with construction start date, expected CC date, and total tenant count; existing tenant register with old carpet area, replacement flat carpet area, floor, tower, agreement date, monthly rent commitment; Rule 27 valuation ledger with valuation basis (OMV / like kind / cost+10%), supporting comparable, revaluation trigger dates; monthly rent payment register tied to bank statement debits and RCM GST provision; TDR / FSI acquisition register with residential/commercial split and unsold-on-CC-date projection; GSTR-3B and GSTR-9 tie-back mapping to the project ledger.
A per-tenant redevelopment position showing carpet area owed, current Rule 27 valuation, GST output liability on free-flat construction service, monthly rent paid to date, RCM GST provision on surrender-of-tenancy service, and TDR / FSI RCM liability apportionment. A monthly GST filing pack per project with GSTR-3B output on construction service, GSTR-3B RCM inward on rent and TDR, and reconciliation of both to the project ledger. An audit-ready evidence trail per assessment year linking every free flat, every rent debit, and every TDR event to the source document — agreement, bank statement, and Rule 27 comparable.
A Mumbai-headquartered developer with a live 200-unit redevelopment of a Grade-III chawl in Girgaon prepares the Q1 GST return and pauses on line 7 of GSTR-3B. Twelve tenants have taken possession of their replacement flats in Tower A during the quarter — the free-flat handover is a supply under Section 7(1) CGST valued under Rule 27, and the applicable GST at 5% has to be paid on the open market value of each replacement flat. The construction team says the OMV is “roughly the free-sale price per square foot in the same tower” — but the free-sale price has moved 14% quarter-on-quarter, and the Rule 27 valuation of the free-flat leg must move with it. Every rupee of drift becomes an assessment exposure. Redevelopment project existing tenant alternate accommodation GST is one of the highest-risk reconciliation rails in Indian real estate, and getting it wrong is a Section 74 waiting to happen.
The reconciliation in one paragraph
A redevelopment project has three GST-relevant streams flowing between the developer and the existing tenants — (1) free replacement flats owed on completion, treated as a supply under Section 7(1) of the CGST Act with Rule 27 open-market valuation and 5% (or 1% affordable) GST on construction service; (2) monthly rent paid during construction, treated as consideration for the tenant surrendering tenancy rights, potentially attracting 18% RCM GST on the developer where the tenant is unregistered; (3) TDR / FSI acquired from the tenants collectively, taxable at 18% RCM per Notification 4/2019-CTR to the extent attributable to unsold-on-CC-date units. Reconciliation must tie every free-flat handover to a Rule 27 valuation basis with supporting comparable, every rent debit in the bank statement to the surrender-of-tenancy service ledger and the RCM provisioning, and every TDR / FSI event to the residential-commercial split and the unsold-on-CC-date projection. GSTR-3B output, GSTR-3B RCM inward, and GSTR-9 annual figures must reconcile to the project ledger every month, and the audit trail must survive an assessment three years later.
Quick reference
| Item | Value |
|---|---|
| Governing law | CGST Act 2017 — Section 7(1) supply, Schedule I Para 2 |
| Authoritative circular | CBIC Circular 108/27/2019-GST dated 18 July 2019 |
| Valuation rule (free flat) | Rule 27 CGST Rules — OMV / like kind and quality / cost + 10% |
| GST rate — free-flat construction | 5% non-affordable, 1% affordable (Notification 3/2019-CTR) |
| GST rate — TDR / FSI | 18% RCM on developer, exempt to extent of pre-CC residential sales |
| GST rate — surrender-of-tenancy service | 18% RCM on developer (unregistered tenant) |
| Rent during construction | Consideration for surrender-of-tenancy service |
| Post-CC handover | No GST on flat sale (Schedule III Entry 5) — but Rule 27 event already occurred |
| Reconciliation cadence | Monthly GSTR-3B tie-back; quarterly Rule 27 revaluation |
What the redevelopment scenario looks like in India — safe illustrative developer brands
Redevelopment is a Mumbai-first play — a large share of the city’s residential land is old-society or chawl plots where the existing tenants collectively hold tenancy rights and the land-underneath. Publicly listed developers with meaningful redevelopment exposure — Macrotech (Lodha), Sunteck, Kolte-Patil in Pune, Oberoi Realty on the redevelopment-adjacent land-parcel model — routinely structure deals where the tenant leg is a triangle of (a) free replacement flats on completion, (b) monthly rent during construction, and (c) a corpus payment at project handover. Godrej Properties and Prestige Estates have run comparable projects on old bungalow plots in Bangalore and Mumbai suburbs, and Brigade Enterprises has a redevelopment book in Bangalore’s older localities. The commercial mechanic differs by developer and by locality — some pay a lump-sum corpus at project start, some pay corpus at handover, some pay only monthly rent — but the GST treatment on the free-flat leg is invariant. It is a supply under Section 7(1), Rule 27 valuation, 5% GST on construction service.
The regulatory overlay
Three layers of GST regulation collide on a redevelopment project.
Layer 1 — CBIC Circular 108/27/2019-GST. The authoritative clarification, dated 18 July 2019. It settles that the handover of a free replacement flat to an existing tenant is a supply under Section 7(1) of the CGST Act, because the tenant surrenders tenancy rights (a non-monetary consideration) in exchange for the flat. Because consideration is not wholly in money, Rule 27 of the CGST Valuation Rules applies. The circular also clarifies that the rent paid to the tenant during construction is consideration flowing from the developer to the tenant for the surrender-of-tenancy service — it is not merely a project cost.
Layer 2 — CGST Valuation Rules, Rule 27. Where consideration is not wholly in money, the value is determined in a three-step waterfall — open market value of the goods or services supplied, or, where OMV is not known, value of like kind and quality, or, as a last resort, the cost of the supply plus 10%. For a free-flat handover, OMV is the price the same flat would fetch if sold to an unrelated buyer at the same time, and where the developer has already booked comparable free-sale flats in the same tower, that per-square-foot rate applied to the tenant’s replacement flat carpet area is the OMV. As fresh free-sale bookings happen, the OMV shifts — the developer’s Rule 27 valuation must move with it.
Layer 3 — Notification 3/2019-CTR and Notification 4/2019-CTR. Notification 3 sets the concessional real-estate GST regime — 5% GST on construction service for non-affordable residential (1% for affordable, defined by carpet area and value ceilings), with no ITC. That 5% applies to the Rule 27 valued free-flat construction service. Notification 4 lays out the RCM mechanism on TDR / FSI acquired by a developer — 18% GST payable by the developer under reverse charge, with a conditional exemption for the portion of TDR / FSI attributable to residential apartments sold before the completion certificate. The balance — attributable to unsold-on-CC-date residential and to commercial — is taxable at 18% RCM. In a redevelopment context the tenants collectively supply the TDR / FSI, and the developer’s RCM liability crystallises at CC date.
A worked example — illustrative numbers
Consider a redevelopment project on a chawl plot in Girgaon with 200 existing tenants. The developer, a publicly listed Mumbai-focused firm operating on the Notification 3/2019-CTR concessional regime, has agreed the following commercial terms with the tenant association:
- Free replacement flats: 200 units, average carpet area 450 sq ft each, one per existing tenant
- Monthly rent during construction: ₹35,000 per tenant per month, payable monthly, for the 36-month construction window (illustrative)
- Free-sale component: additional 300 units in the same tower, average carpet area 720 sq ft, sold at a launched rate of ₹16,700 per sq ft carpet area (illustrative)
- Construction period: 36 months from ground-breaking to CC
Rule 27 valuation of one free replacement flat. At the launched free-sale rate of ₹16,700 per sq ft carpet area, the OMV of a 450 sq ft replacement flat is 450 × 16,700 = ₹75,15,000 (call it ₹75.15 lakh — illustrative). GST on the construction service at 5% is 75,15,000 × 5% = ₹3,75,750 per flat. Across 200 tenants, aggregate GST liability on free-flat construction service is ₹7.51 crore, spread across the 36-month POC schedule per Notification 3/2019-CTR percentage-of-completion mechanics.
Rent during construction — surrender-of-tenancy service. Total rent paid to tenants over 36 months is 200 × 35,000 × 36 = ₹25.2 crore. This is the consideration flowing from the developer to the tenants for the surrender-of-tenancy service. Where the tenant is unregistered (all 200 are individuals with residential tenancies, unregistered under GST), RCM at 18% applies to the developer on this service — 25.2 crore × 18% = ₹4.54 crore RCM liability, spread over the 36-month rent-payment schedule.
TDR / FSI leg. Assume the project consumes 200,000 sq ft of TDR / FSI at a notional consideration of ₹8,500 per sq ft — total notional TDR consideration ₹170 crore. Of the 500 total units (200 free + 300 free-sale), assume 240 free-sale units are booked before CC date and 60 remain unsold at CC. Unsold-on-CC-date proportion is 60/500 = 12%. RCM at 18% on the taxable portion — 170 crore × 12% × 18% = ₹3.67 crore RCM liability crystallising at CC date.
Total GST provisioning across the three legs. Construction-service output tax ₹7.51 crore + rent RCM ₹4.54 crore + TDR RCM ₹3.67 crore = ₹15.72 crore aggregate GST across the tenant-and-TDR side of the project. Each rupee has to be reconciled to a source document — a Rule 27 valuation with supporting free-sale comparable, a monthly rent payment in bank statement, or a TDR / FSI acquisition agreement with residential/commercial apportionment.
Common reconciliation breakages
Six failure modes recur in redevelopment GST reconciliation.
1. Rule 27 valuation drift. The Rule 27 OMV of the free flat is a moving number — it tracks the per-sq-ft free-sale rate in the same tower. Developers often lock the valuation at the initial launched rate and never revise. When the free-sale rate moves 14% during construction and the free-flat handover happens in the 30th month, the GST paid at the outdated OMV is understated. Under Section 74, the shortfall attracts tax + interest + penalty up to 100% of tax, unless the developer can demonstrate a good-faith Rule 27 revaluation ledger.
2. Rent register not tied to bank statement. The developer’s finance team pays tenant rent through a separate operating account and does not tag each debit to the tenant register. When RCM provisioning is computed on an aggregate rent figure from the P&L rather than from the tenant-linked bank ledger, a rent payment made outside the register (e.g., to a tenant who moved, or a lump-sum settlement to a defaulting tenant) is missed from the RCM base. The GSTR-3B RCM inward is under-reported.
3. TDR / FSI residential-commercial split incorrectly stated. The unsold-on-CC-date projection changes as bookings roll in. Developers often use the initial launch-day projection and never revise until CC date, then recompute in a rush. The RCM liability is either over-provisioned early (unnecessary cash lockup) or under-provisioned late (assessment exposure). The Notification 4 mechanism is unforgiving — the taxable portion is fixed by reference to the CC-date status, not the launch-date plan.
4. Free-flat handover before GSTR-3B period recognised. Under the Notification 3 percentage-of-completion regime, GST on the free-flat construction service is recognised over the construction period per POC. When handover happens ahead of the POC schedule (e.g., partial handover in month 26 while the POC schedule assumed 33), the developer must accelerate the balance GST into the handover month. Missing this triggers a GSTR-3B vs Section 74 mismatch.
5. Corpus payment misclassified. Some tenant deals include a corpus payment at project start or at handover — a lump sum in addition to monthly rent and free flat. The corpus is treated by the CBIC clarification as further consideration for surrender-of-tenancy service, attracting RCM at 18%. Developers occasionally classify the corpus as a deposit or as a “one-time cost” outside the surrender-of-tenancy ledger. That misclassification is the single largest RCM under-provisioning cause in redevelopment audits.
6. GSTR-9 annual reconciliation gaps. By year-end, the free-flat construction service GST, the rent RCM, the TDR RCM, and the free-sale GSTR-3B outputs must all reconcile to the project ledger. Where the three tenant-side streams are maintained in three separate spreadsheets and not tied to a single project key, GSTR-9 filing surfaces mismatches that the CA cannot explain to the assessment officer. Terra Insight’s real estate reconciliation software India treats every event on a single project key and produces the GSTR-9 tie-back automatically.
How a reconciliation platform handles this
Running redevelopment GST reconciliation across a multi-project portfolio manually is a five-to-seven day per-quarter exercise dominated by spreadsheet lookups between the tenant register, the free-sale bookings ledger, the bank statement, and the GST returns. Purpose-built reconciliation software India treats every event on a redevelopment project as a tagged event on a single project key.
Every existing tenant sits on the platform with old carpet area, replacement flat carpet area, floor, tower, agreement date, and monthly rent commitment. Every fresh free-sale booking auto-recomputes the Rule 27 OMV per sq ft in the same tower, and the free-flat GST liability recomputes on the current OMV rather than the initial launch rate. Every rent payment in the bank statement is tagged to the tenant and to the surrender-of-tenancy service ledger, and the RCM 18% provisioning runs on the tagged base — not on an aggregate P&L figure. TDR / FSI acquisition documentation sits on the platform with residential/commercial apportionment, and unsold-on-CC-date projection is refreshed as bookings roll in. GSTR-3B output on construction service, GSTR-3B RCM inward on rent and TDR, and GSTR-9 annual figures all reconcile to the project ledger on a single click.
TransactIG carries presets for redevelopment projects including the CBIC Circular 108/2019 event map, the Rule 27 OMV recomputation trigger on fresh free-sale bookings, the tenant register with rent and free-flat tie-back, and the TDR / FSI residential-commercial apportionment. Customer outcomes on similar high-complexity real-estate reconciliation rails include match-rate improvement from 51% to 88%, with build in two-to-four weeks on AWS Mumbai (ISO 27001:2022). For the TDS side of the same project — Section 194IA on free-sale flat consideration above ₹50 lakh and Section 194C on the works-contractor invoices — see TDS reconciliation software.
Continue reading — Real estate cluster
- Slum rehab & affordable housing GST 1% concessional regime — Notification 3/2019 conditions, carpet-area & consideration ceilings
- Joint venture (JV) real estate reconciliation for Indian developers — area-share, revenue-share, RCM on JV development services
- RERA escrow account reconciliation India — Section 4(2)(l)(D) 70% escrow, CA+CE+architect certification, state variations
- Real estate developer revenue recognition under Ind AS 115 — POC computation, contract liability rollforward
- Stamp duty & registration reconciliation for real estate — per-state stamp duty rates, agreement value vs collector rate
- Works contractor TDS Section 194C on real estate — code 1023 — labour-plus-material split, RCM on unregistered
- Professional fee TDS Section 194J for architect / engineer — code 1005, retention, mobilisation advance
- Completion certificate & no-GST on flat sale post-CC — Schedule III Entry 5, first-occupancy trigger
Content authored by practitioners with experience at Amazon India, Intuit QuickBooks, and the Tata Group. Meet the team →
- ▸ CBIC Circular 108/27/2019-GST — Redevelopment — free flats to existing tenants is a supply u/s 7(1); Rule 27 open-market valuation; rent for alternate accommodation is consideration for service
- ▸ CGST Act 2017 — Section 7 & Schedule I — Section 7(1) scope of supply; Schedule I Para 2 supply between related persons
- ▸ CGST Valuation Rules — Rule 27 — Rule 27 — value of supply where consideration is not wholly in money — open market value / like kind and quality / cost + 10%
- ▸ Notification 3/2019-CTR & Notification 4/2019-CTR — Under-construction GST 5% (non-affordable) / 1% (affordable); TDR & FSI rate 18% with conditional exemption for residential; RCM on TDR/FSI to developer