Off-Plan Payment Schedules in Thailand: How Installments
Thailand off-plan payment schedules: typical 30/20/20/20/10 structure. What triggers each payment, what happens on developer delays, and how to protect.
Off-Plan Payment Schedules in Thailand: How Installments Work and What Triggers Payments
Quick answer: Off-plan purchases are cash-flow schedules disguised as property sales. The common 30/20/20/20/10 structure means **30% at contract, then 20% chunks tied to construction milestones, with 10% at transfer. Your protection is SPA definitions: what constitutes foundation complete, what evidence counts, and what happens if the developer runs late, not trust alone.
What triggers each milestone payment?
| Milestone | Typical evidence | Weak SPA language |
|---|---|---|
| Foundation | Engineer/developer certificate + site photos | ”Upon developer confirmation” |
| Structure | Frame completion inspection | ”At developer discretion” |
| Fit-out | Interior milestone definitions | Undated percentage triggers |
| Handover | Keys + snagging completion | ”Substantial completion” undefined |
Do not accept vague language like “when developer decides.” Strong contracts tie cash to observable progress.
Full Phuket off-plan context: Off-Plan Property Phuket Guide. Due diligence workflow: Due Diligence Thailand Step by Step.
What delay penalties should a strong SPA include?
Many SPAs discuss late completion penalties in the range of roughly 0.01-0.025% of purchase price per day after a defined completion date, not universal, but a negotiation anchor.
| Purchase price | 0.02%/day | Per month (~30d) |
|---|---|---|
| $250,000 | $50/day | ~$1,500 |
| $300,000 | $60/day | ~$1,800 |
| $400,000 | $80/day | ~$2,400 |
Penalties are not optional philosophy, they are cash. If your SPA has penalties for buyer default, check whether developer delays carry equivalent buyer protections (rental compensation, exit right, or fee abatement).
What happens if the buyer misses a payment?
Developers commonly allow a grace window (e.g., 30 days) then impose penalties or pursue termination, exact terms vary. Treat deadlines as real.
| Default stage | Typical contract response |
|---|---|
| 1-14 days late | Reminder + possible late fee |
| 15-30 days | Formal notice |
| Beyond grace | Termination risk, deposit at risk |
Red flag: SPA silent on grace period but aggressive on developer termination rights for buyer default.
Can you assign the contract before completion?
Some projects allow assignment to another buyer before final transfer, often with developer consent and a 2-5% fee, confirm early if exit flexibility matters.
| Item | Typical range | Planning note |
|---|---|---|
| Assignment fee | 2-5% | May still beat resale closing costs |
| Developer consent | Required | Not guaranteed |
| Timing | Pre-completion only | Verify eligibility |
Treat assignment as optionality, not a guarantee, you still need a willing buyer and developer approval.
What schedule variations exist beyond 30/20/20/20/10?
| Schedule | Cash-flow shape | Best when |
|---|---|---|
| 30/20/20/20/10 | Balanced milestones | Standard condo builds |
| 30/70 | Fewer payments, heavy handover | Strong developer balance sheet |
| 10/20/70 | Handover-heavy | Buyer wants late concentration |
| 10/10/10/10/60 | Frequent checkpoints | Higher transparency preference |
The “best” schedule depends on developer risk and your liquidity, not marketing friendliness alone.
What should a lawyer-led protection checklist include?
- Define milestones with objective criteria and acceptable evidence types
- Escrow / project accounts (where used): understand release rules
- Default/remedies for both parties: symmetric delay protections
- FET alignment for foreign freehold funding on each tranche
- Force majeure limits: weather and supply chain cannot become infinite delay
- Inspection rights: buyer or independent engineer at key stages
Independent counsel, not the developer’s in-house lawyer alone. Cost context: Hidden Costs Buying Property Thailand.
Do buyers get construction inspection rights?
| Right | Value |
|---|---|
| Milestone inspection | Higher confidence before large tranches |
| No inspection | Reputation-only bet |
Phuket’s market includes both large listed developers and smaller boutique builders. Larger developers may publish construction updates; smaller developers may be fine, but diligence must be heavier. Use site visits when possible, and compare marketing renders to site photos monthly.
What refund and termination clauses actually say?
If the developer fails to meet standards, refund clauses may exist, but timing and deductions vary. Read termination sections carefully before you wire the first 30%.
Understand grace periods, penalties, and whether the developer can terminate and forfeit deposits. These clauses are emotionally painful, read them calmly before signing.
How should you plan cash for each tranche?
Assume your next installment is $70,000 due in 45 days. Have liquidity in place 30 days early because international wires can slip for compliance reasons unrelated to you.
| Week before due date | Action |
|---|---|
| 45 days | Confirm milestone evidence received |
| 30 days | Initiate wire from source account |
| 14 days | Confirm funds landed in developer account |
| 7 days | Lawyer confirms registration/FET paperwork |
Practical rule: Fund the next milestone as soon as the previous milestone is verified, not when the due date approaches.
What does a full milestone table look like on $350,000?
| Stage | % | Amount (30/20/20/20/10) |
|---|---|---|
| SPA signing | 30% | $105,000 |
| Milestone 2 | 20% | $70,000 |
| Milestone 3 | 20% | $70,000 |
| Milestone 4 | 20% | $70,000 |
| Transfer / keys | 10% | $35,000 |
Variations shift concentration, a 30/70 plan might be $105,000 upfront and $245,000 near handover. Higher late concentration = higher developer-delay risk if construction stalls.
How do foreign buyers align FET with each tranche?
Each inbound transfer should be purpose-labeled consistently and mapped to Foreign Exchange Transaction (FET) issuance for condo freehold registration.
| Tranche | FET task |
|---|---|
| Each installment | Inward remittance documentation |
| Final transfer | Cumulative FET supports Land Department registration |
Coordinate each inbound transfer with your lawyer, not one messy chain at the end. Tax context: Thailand Property Tax for Foreigners. Purchase roadmap: Buying Property Phuket Guide.
What should you do when a milestone is disputed?
If the developer claims a milestone is complete and you disagree, your SPA should define dispute resolution: independent inspection, third-party engineer, or defined arbitration path. Without this, you negotiate from weakness after you have already paid.
| Evidence type | Strength |
|---|---|
| Third-party engineer report | High |
| Independent quantity surveyor | High |
| Developer letter only | Lower |
Keep emails factual, photograph everything, and route communications through your lawyer when stakes rise. A $70,000 installment is not the moment for casual texting.
What site visit cadence works for serious off-plan buyers?
| Stage | Visit goal |
|---|---|
| Early | Foundation credibility |
| Mid | Structural quality, waterproofing |
| Late | Finishing quality, common areas |
Insider tip: If payments accelerate relative to visible construction, ask why, and escalate legally early. You are not buying construction progress if milestones trigger without evidence, you are prepaying faith.
Payment schedules are not “payment plans.” They are risk allocation between you and the developer. The stronger the milestone objectivity, the more sleep you keep.
This guide is for education and budgeting, not legal advice. Payment schedules, penalties, and developer practices vary by project, always confirm milestone definitions, remedies, and funding requirements with independent counsel before you sign or send money.
How do escrow and bank guarantees work in Thai off-plan deals?
Thailand does not have one uniform national escrow regime like some Western markets. Practices vary by developer**, bank relationship and project scale.
| Mechanism | What it means | Buyer question |
|---|---|---|
| Project escrow account | Funds released on certified milestones | Who certifies release? |
| Bank guarantee | Developer posts guarantee for refunds | Expiry date and trigger events |
| Direct developer account | Highest counterparty risk | Why no escrow? |
Listed developers and major banks sometimes offer milestone-linked accounts, verify the account name matches the project entity, not an unrelated subsidiary.
What happens in a worked developer-delay scenario?
Assume $300,000 purchase, completion date 31 Dec 2026, penalty 0.02%/day after 30-day grace, and 6-month actual delay (180 days):
| Item | Amount |
|---|---|
| Daily penalty | $60 |
| 180 days | $10,800 theoretical |
| SPA cap (if any) | Often limited, read cap clause |
| Your carrying cost | Mortgage opportunity + FX |
Even with penalties, your capital is illiquid longer than planned, factor delay as a scenario, not a surprise. Cross-read Off-Plan Property Phuket Guide red flags.
How should foreign buyers synchronize FET with multi-tranche schedules?
| Tranche | FET documentation task |
|---|---|
| Tranche 1 (SPA) | Inward remittance + purpose letter |
| Tranches 2-4 | Separate FET or consolidated per bank policy |
| Final transfer | Cumulative proof for Land Department |
Banks differ on whether one FET can cover multiple milestones. Your lawyer and bank manager should agree before the first wire, not after three tranches with mismatched paperwork.
What pre-signing checklist closes the most off-plan disasters?
- Building permit and **EIA (if required): copies, not verbal assurance.
- Milestone definitions: objective, third-party verifiable.
- Delay remedies: symmetric with buyer default clauses.
- Refund path if project cancelled: timing and deductions.
- Assignment rights: fee, consent, timing.
- Completion standard**: snagging before final 10%.
- Independent lawyer engaged: paid by you, not developer.
Insider tip: Photograph the site monthly after each payment. If the site does not change between $70,000 tranches, you have evidence before dispute, not only frustration.
How do payment schedules interact with total budget planning?
Off-plan is not “pay less”, it is pay later. Total cash needed often equals or exceeds resale purchase once furniture, CAM and sinking are included at handover.
| Cost bucket | When it hits |
|---|---|
| Scheduled tranches | Construction phase |
| Transfer fees + tax | Completion |
| Sinking + CAM deposit | Handover |
| Furniture pack | Pre-rental |
Link to Hidden Costs Buying Property Thailand and Budget Planning First-Time Phuket Buyers for all-in cash sizing.
How do zero-interest post-handover plans change risk?
Some developers advertise 0% instalments after handover for 12-24 months. Economics are usually embedded in higher sticker price or developer financing margin, not charity.
| Plan type | Cash-flow appeal | Hidden risk |
|---|---|---|
| 0% post-handover 12 mo | Easier year-one liquidity | Higher total price |
| Handover-heavy 30/70 | Fewer mid-build wires | Concentrated completion risk |
| Long 5-year developer loan | Low monthly | Default clauses, registration timing |
Read total cost of ownership and title transfer timing, some plans delay chanote transfer until finance is cleared.
What force majeure clauses actually do to milestones?
Contracts may extend completion for weather, permits or supply chain. Strong buyer protection:
| Clause element | Strong | Weak |
|---|---|---|
| Extension cap | 90-180 days max | Open-ended |
| Buyer exit right | Refund after cap | No exit |
| Penalty continuation | Penalties after cap | Penalties waived |
If force majeure can extend indefinitely without exit, your tranche schedule becomes optional for the developer, not balanced risk.
What is a practical milestone calendar for a 24-month build?
| Month | Milestone | Typical % | Buyer action |
|---|---|---|---|
| 0 | SPA | 30% | Lawyer review complete |
| 6 | Foundation | 20% | Site photos vs certificate |
| 12 | Structure | 20% | Optional inspection |
| 18 | Fit-out | 20% | Snagging plan |
| 24 | Transfer | 10% | FET + sinking + CAM deposit ready |
Shift months per project, the sequence logic matters more than generic percentages.
When should you walk away from a payment schedule?
- over 40% due before visible structural progress
- Milestones defined only by developer letter
- No delay penalty and no buyer exit after long slippage
- Developer refuses escrow on a first-time project with no track record
- Assignment prohibited with no refund path if your circumstances change
Walking away costs nothing; wiring the wrong 30% costs everything. Pair this guide with Due Diligence Thailand Step by Step before reservation.
Bottom line: A payment schedule is a risk map, not a convenience feature. The best schedule is not the one with the smallest deposit, it is the one that ties your cash to proof, gives you time when the developer slips, and leaves you liquid when the market changes your plans. Each tranche should buy verified progress, balanced delay remedies, and a credible exit if the map changes. Stack this guide with Off-Plan Property Phuket Guide and Buying Property Phuket Guide so milestones, FET and handover cash stay in one workbook. Keep cash early, document the site, and let independent counsel read the SPA before your first wire. Developers who resist objective milestones are telling you how they plan to use your capital; believe them. Your schedule should protect your sleep, not only the developer’s cash flow. If a milestone feels rushed, pause the wire, liquidity retained is leverage kept. No discount on the payment plan is worth a blank milestone definition. Proof before payment, every time. Your capital deserves milestones, not marketing dates. Off-plan success is mostly contract quality, the render is only the preview. Read the SPA like your money depends on it, because it does. Then read the full SPA contract document again carefully with your independent lawyer.
Frequently Asked Questions
A commonly discussed structure is 30/20/20/20/10 tied to construction milestones, but developers use many variations including 30/70.
Contracts should define milestones with evidence such as construction certificates or defined completion stages,not vague dates.
SPAs may include late-completion penalties, but terms vary. Independent legal review is essential.
Contracts often include grace periods, late fees, and potential termination. Read default clauses carefully.
Some projects allow assignment with developer consent and a fee, commonly discussed around 2-5%,confirm in your contract.
MORE Group Editorial
Phuket Real Estate Experts
The MORE Group team has helped 500+ European and American buyers purchase property in Thailand. We provide legal support, 0% commission, and on-the-ground expertise with 8 years in the Phuket market.
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