An off-plan purchase requires payments before the property is complete. The payment schedule determines when that money leaves the buyer’s control and what construction progress must exist first. Compare that risk with a completed purchase in Off-plan vs resale property in Thailand — risk profiles, payment schedules, when each makes sense, and keep rental-return assumptions separate by using Rental yields in Phuket — what investors actually earn.
What does a typical off-plan payment schedule look like in Phuket?
A Phuket off-plan schedule normally runs in four stages: a small reservation deposit to hold the unit; an instalment on signing the sale and purchase agreement, with the reservation deposit credited against it rather than added to it; instalments released against construction milestones; and the final balance at handover. When the deposit is refundable on a Thai property purchase covers when each of those payments can be recovered.
The amount due at each stage is the negotiable part. The stage sequence is not: a sensible schedule makes every instalment after the contract payment conditional on defined construction progress.
| Stage | What the agreement should identify |
|---|---|
| Reservation deposit | The unit held, the deadline for signing, and whether the payment is refundable or credited to the price |
| Sale and Purchase Agreement (SPA) signing | The purchase price, payment due, and the full schedule of later instalments |
| Construction milestones | The physical work that triggers each instalment and the evidence needed to verify it |
| Handover | The final balance, inspection process, title-transfer steps, and any outstanding defects |
Should I choose a front-loaded or back-loaded off-plan payment schedule?
A schedule that leaves more of the price payable after verified progress keeps more construction risk with the developer. A front-loaded schedule asks the buyer to fund work before it is complete; a back-loaded schedule makes the developer carry more of the funding burden until handover.
Middle payments can be one large instalment or several smaller ones. Smaller instalments tied to specific work are easier to assess because the buyer can compare each payment request with the agreed milestone. The right schedule depends on the developer’s record and the contract protections, not a single percentage split.
How does the developer’s funding affect my payment schedule?
The more a developer depends on early buyer payments, the more carefully the buyer should examine the schedule and the developer’s ability to finish the project. Ask for evidence of completed projects, identify who funds construction, and find out whether the developer can continue work if sales slow.
Do not rely on a marketing label or a claimed developer tier. The useful evidence is specific: completed properties that can be inspected, the entity named in the SPA, the people responsible for construction, and the funding and delivery terms in the contract.
What must a construction-milestone clause say?
A milestone clause must define the completed work, the evidence that proves it, and what happens if the work is late or defective. Each payment clause should cover:
- Objective verification. Define the work and require evidence such as an engineer’s certification or an independent inspection; do not leave completion to the developer’s own judgement.
- A timeline. Give each milestone a date or a clear time window, rather than an open-ended estimate.
- Buyer remedies. State the buyer’s options if progress is late, including pausing later payments, claiming an agreed remedy, or ending the contract where the terms allow it.
- Balanced consequences. Check the consequences for developer delay alongside any buyer late-payment charge.
- Specifications. Attach the agreed unit, finishes, fixtures, and amenities as an annex so completion can be assessed against something concrete.
These terms belong in the sale and purchase agreement, not only in a brochure or sales message.
Does escrow make an off-plan deposit safe?
Escrow can protect funds that have not yet been released, but it does not make every off-plan purchase risk-free. Confirm in the SPA which payments enter escrow, who the escrow agent is, what proof releases funds, and what happens to unreleased money if the project fails.
Not every project uses the same arrangement. Read Escrow account in Thailand: the bank holds your payments until the building exists for the mechanics to check and verify any claimed escrow arrangement with the named bank or licensed agent before signing.
What should I negotiate before signing an off-plan SPA?
Negotiate the payment sequence, proof of each milestone, the remedy for delay, and the specifications before signing the SPA. Put every agreed point in the signed contract or an attached, numbered annex.
- Make later instalments conditional on objectively verifiable progress.
- Set dates or clear windows for construction and handover.
- State the buyer’s remedy if the developer misses a milestone or delivery date.
- Confirm inspection rights before each milestone payment.
- Identify any escrow arrangement and its release conditions.
- Attach the full specifications and amenity list.
- If finance is required, address the relevant contingency in the contract; see When the deposit is refundable on a Thai property purchase.
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