Based on our Q1 2026 data, more than 60% of foreign condominium buyers in Phuket use instalment financing offered directly by developers. This is the dominant payment model in a market where access to mortgage lending from Thai banks remains effectively closed to non-residents. Our team monitors payment structures across projects in Bang Tao, Layan, Kamala, Rawai, and Nai Harn. Below we break down how these plans work, what they actually cost, and where the risks concentrate.
A developer instalment plan in Phuket is not a bank loan. It is a structured payment schedule tied either to construction milestones or a fixed calendar, under which the buyer pays the purchase price in several tranches. There is no credit scoring, no income verification, and no interest rate in the conventional sense. There is, however, a hidden cost embedded in the price structure that is easy to overlook without careful analysis.
Quick answer
- A typical Phuket instalment schedule in 2026 covers 3 to 8 tranches spread over 12 to 36 months of construction
- The opening payment (reservation deposit plus down payment) is normally 20 to 30% of the purchase price; the booking fee itself is usually 100,000 to 300,000 THB
- The final tranche, due at key handover, typically represents 30 to 50% of the total price
- Developers do not charge formal interest, but the instalment-plan price is commonly 5 to 15% higher than the cash lump-sum price for the same unit
- Every tranche wired from abroad must arrive in Thailand as a foreign-currency transfer with the correct payment reference to generate a Foreign Exchange Transaction (FET) form, which is mandatory for freehold title registration
- Post-completion instalment plans (spanning 2 to 5 years after handover) are offered by a minority of developers and carry the highest embedded price premium
Options and scenarios
Option 1: Standard construction instalment plan
This is the most common structure on Phuket in 2026. The buyer pays 20 to 30% on contract signing, with subsequent tranches tied to construction milestones: foundation, structural frame, fit-out, and handover. The final tranche (30 to 50%) falls due at unit completion. The entire payment window aligns with the build period, typically 18 to 30 months.
The hidden cost: developers price pre-sale units on an instalment schedule above their cash price. Based on our estimates, the gap is 5 to 10% in high-supply districts such as Bang Tao and Kamala, and rises to 12 to 15% in lower-supply locations such as Layan and Surin. The trade-off is straightforward: no formal interest, no mortgage security, no income check.
Option 2: Post-completion instalment plan
A smaller number of developers in Phuket, and occasionally in Koh Samui (notably Bophut and Maenam), allow buyers to defer 40 to 60% of the price for 2 to 5 years after handover. In this model the buyer pays 10 to 20% on signing, a further 20 to 30% during construction, and settles the balance in monthly or quarterly instalments after receiving the keys.
This is the most expensive structure we track. Per our analysis, post-completion prices are 10 to 20% above the spot cash price for the same unit in the same project. The developer prices in its own financing cost and the risk of non-payment. Critically, the developer typically retains legal title, or holds a leasehold security arrangement, until the final instalment is cleared. The buyer occupies and maintains the unit but cannot register freehold title in their own name until the last payment is made.
Option 3: Lump-sum payment with negotiated discount
Buyers who can fund the full purchase price upfront may negotiate a discount of 5 to 15% off the listed price. In Rawai and Nai Harn, where new project supply has increased, discounts of 10 to 15% were recorded in our Q4 2025 tracking. In Koh Samui, particularly Chaweng and Lamai where foreign demand has remained stable, discounts tend to be narrower at 5 to 8%.
Comparison table
| Parameter | Construction schedule | Post-completion (2-5 yrs) | Lump-sum payment |
|---|---|---|---|
| Opening payment | 20-30% of price | 10-20% of price | 100% of price |
| Payment period | 18-30 months (build) | 3-7 years total | Single transaction |
| Formal interest rate | 0% | 0% (embedded in price) | Not applicable |
| Hidden premium vs. cash price | +5 to 10% | +10 to 20% | Baseline (or 5-15% discount) |
| Income or credit check | None | Minimal or none | None |
| Freehold registration | After full payment | After final instalment | Immediately |
| FET form requirement | Required per tranche | Required per tranche | Required (single transfer) |
| Currency risk | Spread across tranches | Highest (long window) | Single exposure |
Risks and mistakes
Currency exposure across a multi-tranche schedule. Buyers outside Thailand pay in their home currency, but the contract price is denominated in THB. On a 24-month schedule, a 10% shift in the exchange rate (a range well within the movements observed in 2023 to 2025) changes the final cost by a meaningful amount. As a reference point: a 5,000,000 THB unit at a rate of 0.11 local currency units per THB costs the equivalent of 550,000 units of the buyer's currency; at 0.12 it costs 600,000 - a difference of 50,000 units attributable solely to exchange rate movement. We note these as illustrative figures for 2026; buyers should verify current rates independently.
Incorrect SWIFT transfer reference. Every tranche must reach the Thai bank account as a foreign-currency transfer (USD, EUR, or GBP - not a local currency). The payment reference must include the buyer's full name, unit number, project name, and the phrase 'for purchase of condominium'. Missing any of these elements can cause the Thai bank to decline issuing the FET form, which blocks freehold registration. We have tracked cases where correcting documentation took buyers 2 to 4 months.
No deposit protection during construction. Thailand does not operate a statutory buyer-deposit protection mechanism comparable to those in several European markets. Payments go directly to the developer. In the event of developer insolvency or a construction halt, recovery of funds is legally complex and costly. Our team verifies the track record and financial standing of developers before any referral.
Penalty clauses for late tranches. Many Phuket developers charge 1 to 2% per month on overdue instalments. On a tranche of 1,500,000 THB, a three-month delay generates an additional 45,000 to 90,000 THB in penalties. We also check whether the contract specifies the conditions for termination and refund - market practice is a retention of 10 to 30% of amounts already paid if the buyer defaults.
Post-completion trap: no title until final payment. Under a post-completion plan, the developer typically does not transfer legal ownership until the last instalment clears. The buyer occupies the unit, pays maintenance fees, but is not the registered owner. This weakens the buyer's legal position in any dispute.
FAQ
Does a Phuket developer run a credit check on foreign buyers?
No. Developer instalment plans are not bank credit products. Developers in Phuket and Koh Samui do not verify credit history or foreign income. The only practical qualification is meeting the first tranche on schedule.
How large is the first payment when buying a condo on an instalment plan?
The combined booking fee and down payment is typically 20 to 30% of the purchase price. The booking fee alone is usually 100,000 to 300,000 THB, with the balance of the first tranche due within 14 to 30 days of reservation.
Can instalments be sent directly from a foreign bank account in a local currency?
Not directly. The transfer must arrive at the Thai bank in a foreign currency (USD, EUR, or GBP) for the bank to issue the FET form required for freehold registration. A transfer in a non-foreign currency does not satisfy this requirement. We recommend converting before the transfer or using a currency broker that sends funds in USD or EUR.
Does the developer charge interest on the instalment plan?
Formally, no. The stated interest rate on construction schedules is 0%. However, the cost of financing is built into a higher unit price compared with the cash offer. Based on our estimates, the embedded premium is approximately 5 to 15% depending on the project and schedule length.
What happens if a tranche is paid late?
Most developer contracts impose penalties of 1 to 2% per month on the overdue amount. After an extended delay, usually 60 to 90 days, the developer is typically entitled to terminate the contract and retain 10 to 30% of all amounts paid to that point.
When is the freehold title (chanote) transferred under an instalment plan?
Title registration at the Land Office occurs only after 100% of the price has been paid and the full set of FET documents is submitted. Under a standard construction schedule this coincides with unit handover. Under a post-completion plan it occurs after the final instalment is cleared.
Is using a currency broker more cost-effective than a standard bank wire?
In most cases, yes. Currency brokers typically charge a spread of 0.3 to 0.8%, compared with 1.5 to 3% at retail banks. On a single tranche equivalent to 1,000,000 THB, the saving on spread alone is meaningful. Across multiple tranches, the cumulative difference is worth factoring into the financing plan.
Can a unit be sold before all instalments are paid?
In principle yes, but only with the developer's consent. Phuket market practice in 2026: developers charge an assignment fee of 1 to 3% of the price, or a fixed fee of 50,000 to 200,000 THB. Before full payment, the transaction is a transfer of contractual rights, not a sale of a registered property title.
What additional costs apply beyond the instalment payments?
At title registration: transfer fee (2% of the assessed value, typically split equally with the developer), withholding tax on the seller's side (usually covered by the developer), and either a stamp duty or Specific Business Tax. On top of these: a one-time sinking fund contribution of 400 to 800 THB per sq m, and a monthly common area maintenance fee of 40 to 100 THB per sq m depending on project grade.
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