As of 2026, only three banks operating in or near Thailand offer credit products accessible to non-resident foreign buyers. For anyone purchasing a condominium in Phuket or Koh Samui, the conventional mortgage path familiar from Western markets is largely unavailable. Our analysts have monitored this segment for several years; what follows is a structured breakdown of capital transfer mechanics, realistic financing options, and measurable currency risk.

Based on our estimates, the average condominium price in high-demand Phuket districts - Bang Tao, Layan, and Kamala - runs between 4.5 and 8.5 million THB for a 40-65 sq m unit. At the indicative Q1 2026 rate of approximately 0.113 PLN/THB (or roughly 0.027 USD/THB), that translates to a purchase in the USD 120,000-230,000 range. Transferring sums of this magnitude into Thailand requires precise documentation, and the FET form sits at the centre of that process.

Quick answer

  • The FET (Foreign Exchange Transaction) form is mandatory for any inbound foreign transfer equivalent to 50,000 USD or more; without it, the Land Office will not register a condominium under freehold title for a foreigner, and future capital repatriation becomes legally complicated
  • A standard SWIFT transfer from an overseas bank costs roughly 100-250 PLN (or the equivalent in other currencies) per transaction plus a currency spread of 1.5-3.0%, while specialist FX brokers typically charge spreads of 0.3-0.8%
  • Only three banks in the region - two headquartered in Singapore, one in Thailand - currently extend credit to non-residents, requiring down payments of 30-50% and charging 5.5-7.5% per annum (2026 figures)
  • Developer instalment plans are the most common financing alternative; a typical structure is 30% on reservation, 40-50% during construction, 20-30% on handover - but the embedded price premium over a lump-sum payment reaches 5-12% in our data sets
  • Historical PLN/THB volatility over the 2023-2025 period spanned roughly 16% across a 24-month cycle, meaning staggered instalments over an 18-month build carry measurable currency exposure
  • Leveraging an existing property in a home country (a refinance or secured credit line) produces rates in the 7.0-8.5% range in major currencies and grants full transfer flexibility

Options and scenarios

Why the FET form is the foundation of every transaction

The FET form (formerly known as Thor Tor 3, renamed in 2019) is issued by the receiving Thai bank at the moment a foreign-currency transfer arrives and is converted into THB. The document serves as legal proof that funds entered Thailand from abroad through the banking system. Three conditions must be satisfied simultaneously:

  • The transfer must be denominated in a foreign currency (USD, EUR, or GBP; not THB)
  • The payment reference must include the buyer's full name exactly as it appears in the passport and the purpose of the transfer (for example: 'purchase of condominium unit at')
  • The amount - whether in a single transfer or cumulatively - must reach the equivalent of 50,000 USD for the bank to issue the FET automatically

Without a correctly issued FET, the Land Office will refuse to register the condominium under freehold title in the buyer's name. Equally important: at resale, the FET is the only document that legally permits the repatriation of proceeds from Thailand. We verify on the ground that a significant share of foreign buyers make the error of splitting transfers into smaller tranches without consistent payment references, which complicates or prevents the issuance of a consolidated FET.

For purchases priced below the 50,000 USD threshold - for example, a studio in Rawai or Nai Harn - buyers should request a credit advice letter from the Thai bank confirming the international origin of the funds. This serves a similar evidentiary purpose, though it is not a substitute FET.

SWIFT transfer versus specialist FX broker

Our analysts track two primary routes for moving funds from an overseas account into a Thai bank.

SWIFT transfer via a home-country bank. The typical cost is a fixed transfer fee (roughly 100-250 PLN equivalent), a possible correspondent bank charge (15-25 USD), and a currency spread on two conversion legs - from the originating currency into USD or EUR, then from USD or EUR into THB at the Thai bank. Combined, the spread on both legs commonly reaches 1.5-3.0% of transaction value. Settlement takes 2-5 business days.

Specialist FX broker (platforms such as Wise, OFX, or dedicated FX brokers). The spread on a direct conversion to THB is typically 0.3-0.8%, with a flat transaction fee in the range of 50-150 PLN equivalent. Settlement takes 1-2 business days. The key operational advantage is access to forward contracts, which lock in the exchange rate for periods of 3-12 months - a material benefit when payments are spread across a construction schedule.

Common transfer reference errors we monitor in practice:

  • Omitting the buyer's personal name (using a company name instead)
  • Using a generic description such as 'property purchase' without identifying the specific unit
  • Sending the transfer in THB rather than a foreign currency
  • Initiating the transfer from a third party's account (a business partner, for example)

Any of these errors can block FET issuance or require a costly correction process involving correspondence between banks.

Five financing options for foreign buyers in 2026

The Thai mortgage market for non-residents is exceptionally narrow. Based on our estimates, fewer than 2% of condominium transactions by foreign buyers in Phuket and Koh Samui are financed through a Thai bank loan.

Option 1: Thai commercial bank loan. One Thai commercial bank currently offers a mortgage product for foreign nationals from a defined list of eligible countries (the list is reviewed quarterly). Required down payment: 50%. Maximum term: 10 years. Interest rate: 6.5-7.5% per annum (variable). Documented annual income requirement: minimum 75,000 USD. Process timeline: 2-4 months.

Option 2: Singapore-based bank with a Bangkok presence. Down payment: 30-40%. Term: up to 15 years. Rate: 5.5-6.5% (benchmarked against SORA or SOFR). Minimum loan size: 500,000 USD. Requires opening a private banking relationship and maintaining a deposit with the institution. Realistically available only to buyers with investable assets above 2 million USD.

Option 3: Developer instalment plan. The most widespread quasi-financing mechanism on the primary market in Phuket and Koh Samui. The developer stages payments across the construction period (typically 12-24 months), charges no stated interest, but prices the unit 5-12% higher than the lump-sum cash price. No creditworthiness assessment is required. Buyers should note that forfeiture clauses in these contracts typically allow the developer to retain all instalments paid if the buyer withdraws.

Option 4: Leverage against home-country assets. A refinance mortgage or secured credit line against a property or investment portfolio in the buyer's home country - at rates broadly in the 7.0-8.5% range in major currencies (2026 data). Funds are transferred to Thailand as cash, preserving full negotiating flexibility. In our on-the-ground monitoring of Phuket transactions, early cash payment has produced developer discounts of 3-7%, which partially offsets the financing cost.

Option 5: Private loans or peer-to-peer financing. Occasionally observed within investor communities active in Phuket, but carrying significant legal risk and no regulatory protection. Our analysts treat this path as unsuitable for most foreign buyers and do not include it in practical scenario planning.

Currency risk: a worked example

Consider an indicative purchase of a condominium in Surin, Phuket priced at 6,000,000 THB, with instalments spread across 18 months (illustrative scenario, 2026 basis):

  • Base rate 0.113 PLN/THB: total cost 678,000 PLN
  • PLN weakens 5% (rate moves to 0.1187): cost rises to 712,200 PLN (an increase of 34,200 PLN)
  • PLN strengthens 5% (rate moves to 0.1074): cost falls to 644,400 PLN (a saving of 33,600 PLN)
  • PLN weakens 10% (rate moves to 0.1243): cost rises to 745,800 PLN (an increase of 67,800 PLN)

For USD-based buyers, the equivalent exposure runs in a similar directional range given THB's managed float. Buyers paying in instalments over 12-24 months face real, quantifiable currency risk. We recommend considering a forward contract covering at least 50-70% of the planned transfer amount. Specific contract terms should be confirmed with a licensed FX adviser.

Comparison table

Parameter Thai bank loan Singapore bank loan Developer instalments Home-country leverage Cash transfer
Down payment 50% 30-40% 30% (first tranche) 0% (secured against existing asset) 100%
Interest rate 6.5-7.5% p.a. 5.5-6.5% p.a. 0% stated (price premium 5-12%) 7.0-8.5% p.a. N/A
Loan term Up to 10 years Up to 15 years 12-24 months Up to 25 years One-off
Income / asset threshold 75,000 USD/year 2 million USD AuM (private banking) None Local creditworthiness None
Process timeline 2-4 months 3-6 months 1-2 weeks 4-8 weeks Immediate
Liability currency THB USD / SGD THB Home currency Home currency / USD
Currency risk Low (THB/THB) Medium (USD/THB) Low High (home currency/THB) One-off at transfer
Practical availability Restricted Highly restricted Widely available Full (subject to home equity) Full

Risks and mistakes

  • Incorrect transfer reference - the most frequent cause of FET problems in our data sets. Corrections require inter-bank correspondence and typically take 2-6 weeks, which can delay title registration
  • No FET below the 50,000 USD threshold - buyers purchasing a lower-priced unit (for example, a studio in Rawai or Nai Harn) should proactively request a credit advice letter from the Thai bank to document the foreign origin of funds
  • Transfer from a corporate account - the Land Office requires that FET funds correspond to the named individual buyer. A transfer from a foreign company account complicates freehold registration and requires additional documentation
  • Hidden cost of developer instalments - comparing the instalment-plan price with the lump-sum cash price reveals a margin of 5-12% that is never presented as an interest rate
  • Ignoring currency risk - proceeding with a 12-24 month payment schedule without any hedging is an unintended currency speculation; in our experience, many buyers do not recognise it as such
  • Treating Thai bank financing as the primary plan - the product pool is too narrow and the criteria too restrictive for this to serve as a reliable Plan A for most foreign buyers
  • Relying on verbal assurances - any financing or discount commitment from a developer should be confirmed in writing before a reservation agreement is signed

FAQ

Can a foreign buyer obtain a mortgage from a Thai bank?

Yes, but availability is severely limited. As of 2026, one Thai commercial bank offers a mortgage product for foreign nationals from a defined list of eligible countries. The required down payment is 50%, and the interest rate runs 6.5-7.5% per annum. Eligibility by nationality should be verified directly with the bank at the time of application, as the list changes.

What is the FET form and why is it required for a condominium purchase?

The FET (Foreign Exchange Transaction) form is issued by a Thai bank to confirm that funds arrived from abroad in a foreign currency and were converted into THB locally. It is required for transfers equivalent to 50,000 USD or more. Without a valid FET, the Land Office will not register condominium ownership under freehold title for a foreigner, and future repatriation of sale proceeds becomes legally problematic.

How much does an international bank transfer cost when buying property in Thailand?

A SWIFT transfer via a standard bank typically costs a fixed transfer fee plus a combined currency spread of 1.5-3.0% across two conversion legs. On a 6 million THB purchase, the bank spread alone can represent 10,000-20,000 PLN equivalent. A specialist FX broker reduces the spread to 0.3-0.8% and offers forward contracts for rate locking.

Do Phuket and Koh Samui developers offer interest-free payment plans?

Developer instalment plans are marketed as interest-free, but the unit price under a staged payment schedule is typically 5-12% higher than the cash price for the same unit. The financing cost is embedded in the price rather than stated as an interest charge.

How can buyers hedge PLN/THB or USD/THB currency risk?

The most effective tool is a forward contract with a licensed FX broker, which locks in the exchange rate for 3-12 months. Based on our estimates, hedging at least 50-70% of the planned transfer amount is a reasonable starting position. Precise contract terms depend on the buyer's instalment schedule and should be structured with a licensed FX adviser.

Can the transfer for a Thai property purchase be sent from a company account?

It is technically possible to send funds from a corporate account, but the Land Office requires the FET to correspond to the individual named as buyer. A transfer originating from a company account complicates freehold registration and requires additional documentation linking the company to the purchasing individual.

In which currency should funds be transferred to Thailand?

Our analysts recommend transferring in USD or EUR, which carry the highest liquidity in Thai banks and the narrowest conversion spreads into THB. Transfers in other currencies are accepted but typically attract a spread premium of 0.3-0.5 percentage points above the USD or EUR equivalent.

How long does the foreign buyer mortgage process take in Thailand?

At the Thai commercial bank currently offering this product: 2-4 months from submission of a complete application. At a Singapore-based bank with a Bangkok presence: 3-6 months, including the private banking onboarding process. For comparison, a developer instalment arrangement can be activated within 1-2 weeks of reservation.

Does leveraging home-country property to fund a Thai purchase make financial sense?

Refinancing or drawing a secured credit line against a home-country property produces rates broadly comparable to Thai bank rates (7.0-8.5% per annum in major currencies as of 2026), but offers full transfer flexibility and negotiating power as an effective cash buyer. In our on-the-ground monitoring of Phuket transactions, early cash payment has produced developer discounts of 3-7%. The principal drawback is full exposure to home-currency/THB exchange rate movements over the life of the loan.

Researching property in Phuket or Koh Samui? Get in touch - our analysts will prepare a data brief for your shortlisted location.

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