Editorial
Off-Plan Payment Schedules in Bangkok: 2026 Guide
By THAI.ESTATE Editorial Team13 min read
A typical off-plan payment schedule in Bangkok splits the total purchase price into four to six staged instalments tied to construction milestones. The reservation deposit is usually 1-3% of the purchase price. The contract signing payment follows at 10-20%. Construction milestone payments together account for 20-40%. The final balance of 30-50% is due at handover (key transfer). The exact percentages vary by developer tier, project type, and how far along construction is when you buy.
This structure matters because it directly controls how much of your money is at risk at any given moment during the build. A poorly shaped schedule - one that front-loads large payments early - puts your capital in the developer's hands long before you have any legal claim to a finished unit. Understanding the schedule shape is the single most practical thing you can do before signing.
Quick answer
- Reservation deposit: 1-3% of purchase price, typically paid by bank transfer or credit card, usually non-refundable if you withdraw
- Contract signing: 10-20% due within 7-30 days of reservation, the point at which your legal rights attach to the contract
- Construction milestones: 4-6 payments of 5-10% each, triggered by verified construction stages (foundation, structure, facade, fit-out)
- Handover / transfer: 30-50% of total price, the largest single payment, due when the unit is ready and the chanote (the Thai land title deed, the strongest form of ownership) is ready to transfer
- Indicative off-plan discount vs. completed resale (as of 2026): 10-20% below comparable completed stock in the same Bangkok submarket, per market estimates - this discount is the return on the risk you carry
- Capital at risk at foundation stage: typically 15-25% of total price, rising to 40-60% by mid-build
Options and scenarios
Scenario 1: Standard mid-tier Bangkok developer schedule
This is the most common pattern you will encounter from established Bangkok developers selling condominiums under the Condominium Act (B.E. 2522, as amended).
- Reservation: 2% (non-refundable after cooling-off period, if any)
- Contract signing (within 14 days): 15%
- Foundation complete: 5%
- Structure complete (typically 12-18 months into build): 5%
- Facade and windows complete: 5%
- Fit-out and MEP (mechanical, electrical, plumbing) complete: 5%
- Handover and title transfer: 63%
Total paid before handover: 37%. Your maximum capital at risk before you hold a title is just over one-third of the price. This is a buyer-friendly shape.
At a purchase price of THB 5,000,000 (indicative figure), the cash flow looks like this:
- Day 1 (reservation): THB 100,000
- Day 14 (contract): THB 750,000
- Month 6 (foundation): THB 250,000
- Month 14 (structure): THB 250,000
- Month 20 (facade): THB 250,000
- Month 26 (fit-out): THB 250,000
- Month 32 (handover): THB 3,150,000
This schedule keeps your cumulative exposure below THB 1,600,000 (32%) for roughly two years of the build cycle, then concentrates the largest payment at the moment of title transfer.
Scenario 2: Luxury or prestige Bangkok developer schedule
Higher-end developers in Bangkok (Sukhumvit, Silom, Riverside) sometimes ask for heavier early payments as a buyer-commitment signal. A typical prestige schedule:
- Reservation: 1%
- Contract signing: 20%
- Foundation: 10%
- Mid-build structural milestone: 10%
- Interior completion: 10%
- Handover: 49%
Total before handover: 51%. At the same THB 5,000,000 price, you will have committed THB 2,550,000 before receiving a key. This is not necessarily dangerous if the developer is well-capitalised and the contract contains strong protections, but it is a heavier risk position.
Scenario 3: High-front-load schedule (red flag pattern)
Some smaller or less established developers request 30-40% at contract signing and another 20% at a vague 'construction commencement' milestone. This puts 50-60% of your money at risk within the first few months, with no completed structure to show for it.
This pattern is a serious warning sign. There is no escrow mechanism for foreign buyers in Thailand that protects funds paid to a developer; once money is transferred under a Thai property sale and purchase agreement, your only recourse is the contract itself and the civil courts. A front-loaded schedule without robust completion-guarantee clauses creates significant default exposure.
How the off-plan discount justifies the risk
As of 2026, indicative market data from Bangkok's inner districts (Sukhumvit, Sathorn, Ratchada) suggests off-plan units from credible developers are priced 10-18% below equivalent completed resale units in the same building or subdistrict. On a THB 8,000,000 completed unit, the off-plan equivalent is priced at roughly THB 6,600,000 - 7,200,000.
That discount is your reward for accepting construction risk and tying up capital over 2-4 years. Whether it is adequate depends on the developer's track record, the contract protections you negotiate, and the shape of the payment schedule. A 10% discount with a front-loaded schedule and no delay penalties is a poor trade. A 15-18% discount with a milestone-linked schedule and enforceable penalty clauses is more defensible.
Contract protections: clause by clause
Completion guarantee clause: A credible contract states a specific completion date (or a maximum build period, e.g. '36 months from contract date') and defines what 'completion' means legally - usually a government-issued building completion certificate (the 'or.6' document in Thai building law). Without a defined completion date, you cannot calculate delay penalties or trigger exit rights.
Delay penalty terms: Thai law does not impose a statutory delay penalty for off-plan property. Your protection depends entirely on a negotiated clause. A reasonable clause provides a daily or monthly penalty (often 0.01-0.02% of the purchase price per day of delay beyond the agreed completion date). On a THB 5,000,000 purchase, 0.01% per day equals THB 500 per day - modest, but it creates a contractual incentive for the developer to deliver on time. Without this clause, delay is your problem, not theirs.
Buyer exit and refund conditions: The contract should specify the conditions under which you can exit and receive a refund. Common triggers include: the developer missing the completion date by more than 6-12 months, the developer failing to obtain the building permit within a set period, or the developer entering insolvency proceedings. A contract that permits exit but does not specify refund timelines is weak - push for explicit wording ('full refund of all instalments paid within 60 days of written notice of termination').
What actually happens if the developer defaults mid-build: Thailand has no dedicated property developer insolvency protection fund for buyers. If a developer enters formal bankruptcy proceedings under the Thai Bankruptcy Act, your claim as an unsecured creditor ranks below secured lenders (typically the bank that financed the project). In practice, buyers in Thai developer insolvencies have often recovered 20-50% of payments made, per reported cases - a real and material risk. This is why developer selection and schedule shape are more important than almost any other factor.
Assignment clauses: Many off-plan contracts in Bangkok allow you to assign (sell) your contractual rights to a third party before handover, giving you an exit path without waiting for completion. This is sometimes called a 'contract flip'. Conditions typically include written developer consent, an assignment fee (often 1-3% of the original purchase price), and a requirement that the new buyer meets any foreign ownership quota rules under the Condominium Act. Read the assignment clause before you sign; some contracts prohibit assignment entirely, removing your ability to exit early.
Foreign ownership quota: Under the Condominium Act, foreign nationals (non-Thai entities) may collectively hold no more than 49% of the total unit floor area in any registered condominium project. If the project's foreign quota fills up before your handover date, your title transfer is blocked. Confirm the current quota status in writing before paying any deposit.
FET (Foreign Exchange Transaction) documentation: Foreign buyers purchasing a condominium unit must bring funds into Thailand in a foreign currency and convert to Thai baht. The receiving bank issues a Foreign Exchange Transaction form (known as a FET form, or formerly a Thor.Tor. 3 form). You must obtain and keep a FET form for each payment that will be applied toward the purchase price. Without a valid FET form, the Land Department will not register the title in a foreign name. This applies to every staged payment, not just the final balance.
Comparison table
| Parameter | Standard mid-tier | Prestige developer | High-front-load (risk flag) |
|---|---|---|---|
| Reservation | 2% | 1% | 3% |
| Contract signing | 15% | 20% | 35% |
| Construction milestones (total) | 20% | 31% | 20% |
| Handover payment | 63% | 48% | 42% |
| Total paid before handover | 37% | 52% | 58% |
| Capital at risk at mid-build (THB 5m unit) | ~THB 1,350,000 | ~THB 2,050,000 | ~THB 2,900,000 |
| Typical delay penalty clause | Yes (0.01-0.02%/day) | Often yes | Often absent |
| Assignment allowed | Usually yes | Often yes, fee applies | Variable |
| Completion guarantee | Defined date, or.6 cert | Defined date, or.6 cert | Often vague |
| Developer tier | Listed or established | Listed or established | Smaller or early-stage |
Risks and mistakes
Paying a large reservation deposit before seeing the full contract. The reservation form (sometimes called a booking form) is a legal document in Thailand. Paying a reservation deposit without reviewing the sale and purchase agreement (SPA) exposes you to a non-refundable loss if the contract terms are unacceptable. Always request a draft SPA before paying any deposit, or negotiate a short period (5-7 business days) to review it with a Thai-licensed lawyer.
Accepting vague milestone definitions. Contract milestones described as 'when construction reaches X floor' or 'when the developer determines the structure is complete' are not independently verifiable. Insist on milestones linked to government inspections, building permit stages, or photographs with independent verification rights.
Ignoring the developer's financial health. In Bangkok, major listed property developers (those traded on the Stock Exchange of Thailand) publish audited financial statements. Review their debt-to-equity ratio and project completion history before committing. Smaller developers offer no such transparency.
Missing FET form requirements. If you wire money from abroad in multiple transactions or through a third party, the FET form may not be issued correctly. This can block your title transfer regardless of how much you have paid. Use a direct wire from your personal account to the developer's designated account, in a foreign currency, and confirm the FET form with the receiving bank immediately after each transfer.
Assuming a 'guaranteed rental return' protects you. Some Bangkok off-plan projects are sold with guaranteed rental yield promises (e.g. '6% per year for 3 years'). These guarantees are contractual obligations of the developer, not government-backed instruments. If the developer defaults, the rental guarantee is worth nothing. Do not factor a rental guarantee into your risk assessment of the developer's financial strength.
Not checking the foreign quota before handover. The 49% foreign quota can fill up between your purchase date and handover, especially in popular Bangkok projects. Include a clause in your SPA that guarantees your unit is within the foreign quota allocation, or provides a refund mechanism if it is not.
Skipping independent legal review. Thai property law is different from European, American, or Middle Eastern property law in material ways. A Thai-licensed lawyer reviewing your SPA typically charges THB 20,000-50,000 for a straightforward condominium contract. Against a purchase price of several million baht, this is not an optional expense.
FAQ
What is a typical off-plan payment schedule in Bangkok?
A typical Bangkok off-plan payment schedule has four to six stages: reservation (1-3%), contract signing (10-20%), construction milestones (20-40% in total across 3-6 payments), and handover (30-63%). The exact percentages depend on the developer and project. The handover payment is almost always the largest single amount.
How much of my money is at risk during the construction period?
With a standard mid-tier Bangkok schedule, you will have paid roughly 30-40% of the purchase price by the time the building is at mid-build stage. With a front-loaded schedule, this can rise to 50-60%. The remaining balance is only paid at title transfer, which limits your maximum loss if you need to exit before handover - provided assignment is permitted in your contract.
Is there an escrow account protecting my payments in Thailand?
No. There is no escrow mechanism for foreign real estate buyers in Thailand in the traditional sense. Your protection comes from the contract terms, the developer's financial credibility, and the milestone-linked structure of the payment schedule. This is why contract review and developer due diligence matter more in Thailand than in many other markets.
What happens if the developer does not finish the building on time?
If your contract contains a delay penalty clause, you are entitled to claim the specified daily or monthly penalty for each day of delay. If the delay exceeds the threshold defined in your contract (often 6-12 months), you may have the right to terminate and claim a refund. Without these clauses, your legal options are limited to civil litigation, which is slow and expensive.
Can I sell my off-plan contract before the building is finished?
In many Bangkok projects, yes - this is called assignment or a 'contract flip'. Your contract must explicitly permit it. The developer typically charges an assignment fee of 1-3% of the original purchase price and requires written consent. The buyer taking over the contract must also comply with the foreign ownership quota. Some contracts prohibit assignment entirely.
Do I need a FET form for every staged payment?
Yes. Every foreign currency payment you make toward the purchase price should generate a Foreign Exchange Transaction (FET) form from the Thai bank receiving the funds. Collect and store all FET forms. The Land Department requires them to register the title in a foreign buyer's name. Missing even one can delay or block your title transfer.
How much less do off-plan units cost compared to completed resale in Bangkok?
As of 2026, off-plan units in Bangkok's inner districts are typically priced 10-18% below comparable completed resale stock in the same submarket, per market estimates. This discount compensates for the construction risk and the capital tied up during the build period.
What should I check about the developer before paying a deposit?
Check whether the developer is listed on the Stock Exchange of Thailand (listed companies publish audited financials). Review their project completion record - how many of their previously announced projects were delivered on time and to specification. Confirm that an Environmental Impact Assessment (EIA) approval and building permit have been obtained for the specific project, not just applied for. Ask for the building permit number in writing.
What is the foreign ownership quota and how does it affect me?
Under Thailand's Condominium Act, foreign nationals may collectively own no more than 49% of total floor area in any registered condominium. If this quota is full at the time of your title transfer, the Land Department will not register your name on the chanote (title deed). Confirm your unit is within the quota allocation in your SPA, and check quota status again before making your handover payment.
Can a Thai company or nominee structure allow me to bypass the foreign quota?
Using a Thai company structured primarily to hold property on behalf of a foreign national is a legal grey area and carries significant risks under Thai law. Nominee arrangements are explicitly prohibited. This guide does not recommend either approach. Consult a qualified Thai-licensed lawyer about legitimate ownership structures before proceeding.
Planning a property purchase in Thailand? Send us your requirements - the THAI.ESTATE team will reply with specific options and a safety checklist for your case.