Allotment Letter vs Agreement-to-Sell: When to Use Which

In the Indian real estate sales funnel there are three distinct legal instruments that developers routinely confuse: the booking form, the allotment letter and the agreement for sale (often called agreement-to-sell). Each has a different role, different statutory implications under the Real Estate (Regulation and Development) Act, 2016, and different consequences under the Transfer of Property Act, 1882, the Registration Act, 1908 and the applicable state Stamp Act. Getting them wrong creates two kinds of risk: over-papering an early-stage interaction until the allottee walks away, or under-papering a relationship until Section 13 of RERA has been breached.

This guide clarifies the role of each document, the sequence in which they should be issued, and the common mistakes developers make. It is written for principals who must approve the sales-stage documentation flow at the project launch stage.

1. The Sales Funnel: Three Legal Instruments

Before the final sale deed that conveys title, Indian real estate sales typically travel through three instruments:

• Booking form / Expression of interest (EOI). Captures initial intent, basic identity, preferred apartment type and a small token amount.
• Allotment letter. Allocates a specific apartment to the allottee, records the commercial terms and payment schedule, and sits on top of the booking form.
• Agreement for sale. The RERA-mandated document that binds the developer and allottee on full commercial terms and is registered under the Registration Act, 1908.

Each has a distinct commercial and legal function. Conflating them — or issuing one while labelling it another — is where disputes originate.

2. The Booking Form / EOI

A booking form is the entry point. Typical contents:

• Allottee KYC basics (name, address, PAN).
• Preferred apartment size, tower, floor.
• Indicative price range.
• Token amount (typically ₹50,000 to ₹5 lakh).
• Refund terms if the developer cannot allocate the requested unit.
• Limited binding commitments.

The booking form is generally a preliminary document. It does not by itself trigger Section 13 of RERA because it is not "accepting a sum more than ten percent of the cost of the apartment, plot, or building, as the case may be, as an advance payment or an application fee." Token amounts are below that threshold.

However, the booking form must:

• Be consistent with the state's Model Agreement language.
• Not waive RERA rights (any waiver clause is void).
• Clearly describe the refund mechanism if the booking cannot be progressed.

3. The Allotment Letter: Transition Document

The allotment letter is issued after the booking form is accepted and a specific apartment is available. It typically contains:

• Specific unit number, carpet area, exclusive balcony/terrace area.
• Confirmed price.
• Construction-linked payment plan.
• Confirmed possession date and grace period.
• Reference to RERA registration number.
• Reference to the Model Agreement for Sale that will follow.

The allotment letter is often structured as a conditional contract. It creates binding obligations on the developer to formalise the agreement for sale and on the allottee to pay as per the schedule.

Some states have issued a Model Allotment Letter. Where a Model Allotment Letter is prescribed, developers should follow it verbatim, adjusted for project-specific data.

4. When Does Section 13 Actually Kick In?

Section 13(1) of the RERA Act states: "A promoter shall not accept a sum more than ten per cent of the cost of the apartment, plot, or building, as the case may be, as an advance payment or an application fee, from a person without first entering into a written agreement for sale with such person and register the said agreement for sale, under any law for the time being in force."

Practical implications:

• The ten-percent ceiling includes all amounts collected by the developer before the agreement — token, EOI, booking amount, allotment amount.
• Once cumulative collection approaches ten percent, the formal agreement for sale must be executed and registered before any further collection.
• The agreement must be registered under the Registration Act, 1908 as applicable in the state.

Developers often miscalculate the ten-percent computation by assuming stamp duty and GST are excluded. The better practice is to treat "ten percent of the apartment cost" as a narrow ceiling and trigger the agreement as the collection approaches that threshold.

5. The Agreement for Sale: The Heart of the Transaction

The agreement for sale is the RERA-prescribed binding document. Under the state Model Agreement:

• It is executed after the allotment letter (or in place of the allotment letter once both parties are aligned).
• It covers all twenty core clauses (parties, apartment, price, payment plan, possession, interest, plan changes, common areas, defects, conveyance, default, dispute resolution).
• It is stamped under the applicable state Stamp Act.
• It is registered under the Registration Act, 1908 as applicable.

An unregistered agreement for sale is inadmissible in evidence (except for the limited purpose of proving a collateral transaction or being receivable as evidence upon payment of stamp duty and penalty). For the allottee, an unregistered agreement makes enforcement difficult. For the developer, it creates a registration gap that can itself be a Section 13 contravention.

6. The Sale Deed: After the Occupancy Certificate

The sale deed (or conveyance deed) is the instrument that transfers title from the developer to the allottee. It is executed at possession, after the occupancy certificate (OC) is received from the municipal authority, typically within:

• Three months of OC receipt under Section 17 of the RERA Act (for conveyance of common areas to the association).
• A shorter or equivalent window under the specific state rules for individual unit conveyance.

The sale deed:

• Identifies the precise apartment, parking and exclusive use areas.
• Confers title through Section 54 of the Transfer of Property Act, 1882.
• Records the consideration paid.
• Is stamped at the conveyance rate (typically the full rate, with set-off against the stamp duty paid on the agreement for sale).
• Is registered under the Registration Act, 1908.

A sale deed without a preceding registered agreement for sale creates a gap that is routinely flagged in title audits for resale and home-loan approvals.

7. Why the Allotment Letter Cannot Replace the Agreement

Some developers attempt to collect construction payments based on the allotment letter, deferring the formal agreement to a later stage. This is a direct Section 13 contravention once the ten-percent threshold is crossed.

RERA authorities have consistently held:

• The allotment letter is a preliminary binding document.
• It cannot be a substitute for the agreement for sale.
• Section 13 is triggered by the monetary threshold, not by the label of the document.
• An allotment letter that collects twenty or thirty percent of apartment cost is a non-compliant agreement, exposing the developer to Section 59 or Section 61 penalties.

The operational discipline: issue the allotment letter, schedule the agreement for sale execution promptly after allotment, and do not collect above the ten-percent ceiling until the agreement is registered.

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8. Registration: The Stamp Duty Trap

Stamp duty on the agreement for sale varies by state:

• Maharashtra. Stamp duty at conveyance rate (five to seven percent depending on location), with set-off against the eventual sale deed.
• Karnataka. Stamp duty on agreements for sale is lower than on conveyance deeds, with a defined set-off mechanism.
• Haryana. Duty under the Indian Stamp Act as applicable in Haryana, with scale varying by rural/urban and commercial/residential.
• Delhi, Tamil Nadu, Telangana and West Bengal. Each has its own scale; some states have a lower agreement rate with full set-off, others essentially charge conveyance rate on the agreement.

The risk: an agreement for sale drafted for Maharashtra and executed in another state is often under-stamped under the receiving state's Stamp Act. The document is inadmissible in evidence until the deficit and a penalty up to ten times the deficit is paid. This can turn a ₹5 lakh stamp issue into a ₹50 lakh liability.

9. Allotment Letter Stamp Duty

The allotment letter typically attracts a lower stamp duty than the agreement for sale. In Maharashtra, for example, the allotment letter can be executed on a low-denomination stamp paper if the substantive agreement is to follow. In Karnataka and Haryana, the allotment letter's stamp duty treatment varies.

The practical pattern: execute the allotment letter on a low-value stamp paper, and keep the agreement for sale as the fully stamped, registered instrument.

10. Registration Timelines and the Sub-Registrar Practice

Under most state rules, the agreement for sale must be presented for registration within four months of execution (Section 23 of the Registration Act, 1908). Extensions up to a further four months are available under Section 25, subject to a penalty up to ten times the registration fee.

Practical discipline:

• Execute and register the agreement in the same week if possible.
• Use online registration portals (Maharashtra, Karnataka, Telangana and several other states offer online registration for residential agreements).
• Capture the registration document number on the RERA portal for the project.

11. The Interaction with Home Loans and Bank Documentation

When the allottee is financing the purchase through a bank loan, the documentation typically follows this sequence:

• Booking form → allotment letter → bank sanction → agreement for sale → tripartite agreement (developer-allottee-bank) → disbursement as per construction-linked plan.

The agreement for sale is the document banks rely on for their valuation, legal opinion and disbursement. An unregistered agreement creates a financing roadblock; an ambiguously worded agreement creates valuation delays.

12. Assignment Between Allotment and Agreement

A common scenario: allottee books an apartment, receives the allotment letter, and before the agreement is executed, wishes to transfer the rights to a family member or third party. This pre-agreement assignment:

• Must be recorded by the developer in writing.
• Typically attracts a nominal administrative charge.
• Should not impose disproportionate transfer fees.
• Should not violate the RERA provisions on Section 15 promoter substitution (which is different — that concerns the promoter side).

Pre-agreement assignments are generally simpler than post-agreement assignments because the formal registered instrument has not been executed yet.

13. The Sequence in a Clean Sale

A compliant sale in a RERA-registered project typically looks like this:

1. Marketing. With carpet area disclosures, RERA registration number, and compliant advertising.
2. Booking form. Small token amount, KYC basics, preliminary interest.
3. Allotment letter. Once the specific apartment is identified and the booking amount (below ten percent) is received.
4. Agreement for sale. Before ten-percent threshold is crossed; stamped and registered under the Registration Act.
5. Construction-linked payments. As per the agreement schedule, tracked against the escrow and project milestones.
6. OC received. Municipal authority issues occupancy certificate.
7. Sale deed. Executed within three months of OC; stamped at conveyance rate with set-off; registered.
8. Possession and conveyance. Allottee receives keys; conveyance to association for common areas.

14. A Comparison Table

| Document | Stage | Binding? | RERA Trigger? | Stamp Duty | Registration | |---|---|---|---|---|---| | Booking Form / EOI | Pre-allotment | Limited | No | Minimal | Not required | | Allotment Letter | Post-booking | Yes | No, until 10% threshold | Low | Not always required | | Agreement for Sale | Pre-construction start or as payment progresses | Yes | Yes, Section 13 | State-specific full rate | Yes, Registration Act | | Sale Deed | Post-OC | Yes, transfers title | Conveyance under Section 17 | Conveyance rate with set-off | Yes |

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15. Common Mistakes Developers Make

• Using allotment letters for collections above ten percent. Direct Section 13 breach.
• Delaying agreement for sale execution to save stamp duty. False economy; stamp duty is payable either at the agreement stage or at sale deed stage.
• Executing unregistered agreements. Inadmissible in evidence and fails home-loan disbursement.
• Copy-pasting allotment letters from one state to another. Creates stamp duty, registration and Model Allotment-Letter divergences.
• Treating the booking form as the full binding document. Loses leverage on Section 13 compliance and on downstream payment enforcement.

Frequently Asked Questions

Can we collect more than ten percent of apartment cost on the basis of an allotment letter alone?▾

No. Section 13(1) of the RERA Act explicitly prohibits the collection of more than ten percent of the apartment cost as advance payment or application fee without first executing and registering the agreement for sale. The label of the document — allotment letter, booking form, application form — does not matter; the statutory trigger is the monetary threshold. Attempting to collect a larger percentage on the basis of an allotment letter is a direct Section 13 contravention that has resulted in Section 59 and Section 61 penalties in multiple state orders.

Is the allotment letter stamped at the full rate or at a concessional rate?▾

This varies by state. In Maharashtra, an allotment letter is typically executed on a low-denomination stamp paper when the full-stamped agreement for sale is to follow shortly. In Karnataka and Haryana, the allotment letter's treatment differs, but in general the allotment letter attracts a lower stamp than the final agreement or sale deed. Refer to the applicable state Stamp Act, not the Indian Stamp Act assumption, when preparing allotment letters for a specific state.

If we register the agreement for sale, do we still need to register the sale deed later?▾

Yes. The agreement for sale and the sale deed are distinct instruments under the Registration Act, 1908 and the Transfer of Property Act, 1882. The agreement creates a binding contract to sell; the sale deed actually transfers title under Section 54 of the Transfer of Property Act. Both need to be registered. Stamp duty on the agreement is generally set off against the stamp duty on the eventual sale deed, subject to state-specific rules, so there is usually no duplication of stamp cost.

Can the allottee cancel based on the allotment letter before the agreement is executed?▾

Yes. An allotment letter is a binding document but it contemplates the later execution of a formal agreement. If the allottee wishes to cancel before the agreement is executed, the refund mechanism depends on the allotment letter's terms and any state-specific RERA rules. The developer is generally entitled to retain a reasonable administrative amount, and must refund the balance (typically within 45 to 90 days). Excessive forfeiture at this stage is routinely struck down as unconscionable.

What happens if the allotment letter and the eventual agreement for sale contradict each other?▾

The agreement for sale is the superseding document because it is registered and fully stamped. Most Model Agreements expressly state that upon execution, the agreement supersedes all prior documents including the booking form and allotment letter. However, any representation in the allotment letter that was relied on by the allottee and is not captured in the agreement can form the basis of a Section 12 misleading-advertising claim or a Contract Act misrepresentation claim. Developers should ensure that the agreement fully captures everything in the allotment letter.

Is an allotment letter that is not followed by an agreement for sale valid?▾

Yes, it is a valid contract between the parties, but it cannot carry more than ten percent of the apartment cost as collected amount. A developer that stops at the allotment letter without proceeding to the agreement for sale — and collects less than ten percent — is technically compliant with Section 13, but this is not a good long-term posture. It creates enforcement difficulty, blocks bank disbursement, and exposes the developer to future dispute risk. The right discipline is to execute and register the agreement for sale within a defined window after allotment.

Can we use a single template allotment letter across all projects in different states?▾

No. The allotment letter is a state-sensitive document because state RERA rules, state Stamp Acts, state registration rules and (in some states) the Model Allotment Letter formats differ. A single template used across Maharashtra, Karnataka and Haryana will almost certainly be under-stamped in at least one of them and may deviate from a Model Allotment Letter in another. Maintain state-parameterised templates and apply the correct one based on the project's location.