Reservation Agreement in Thailand: 7 Key Clauses Every Investor Must Know in 2026

You sign a document in English, wire 100,000 THB, and only later - somewhere over the Indian Ocean - do you begin to wonder what exactly you committed to. This is the reality for many international buyers of condominiums in Thailand who treat the reservation agreement as a non-binding expression of interest. In Thai real estate practice, however, this document carries real legal and financial weight.

The Reservation Agreement (sometimes referred to in Thai as ใบจอง) is the first binding step in any Thai property transaction. For international investors, it functions similarly to a preliminary purchase contract, with one critical distinction: Thailand has no statutory protection for reservation deposits. The terms of refund or forfeiture depend entirely on what is written in the document you sign.

Understanding this mechanism before transferring any funds is the absolute minimum due diligence. Below, we break down the reservation agreement in detail, compare it with practice in Cambodia, and outline how to protect your interests at every stage.

Quick answer

• Reservation deposits in Thailand typically range from 50,000 to 200,000 THB (approximately USD 1,400 to 5,700 at 2026 exchange rates).
• A reservation agreement does not transfer ownership - it locks the unit and sets the terms for the future transaction.
• Foreign nationals can only purchase a freehold condominium within the building's 49% Foreign Quota allocation.
• The standard reservation period is 14 to 30 days, after which a Sale and Purchase Agreement (SPA) must be signed.
• The deposit is non-refundable if the buyer withdraws without a contractually specified reason.
• In Cambodia, an equivalent deposit is typically USD 1,000 to 5,000, and foreigners may purchase units from the first floor upward under the 2010 Law on Foreign Ownership.

Options and scenarios

Scenario 1: Buying a new condominium from a developer in Thailand

This is the most common situation. The developer presents its own Reservation Agreement template, usually a one-page document in English and Thai. Key provisions cover the unit number, purchase price, deposit amount, the SPA signing deadline, and the conditions for deposit refund or forfeiture.

On the primary market in Bangkok, Pattaya, and Phuket, the deposit typically represents 1 to 3 percent of the unit price. For lower-priced units, flat amounts (such as 100,000 THB) are common.

Before signing, an international investor should:

• Verify the Foreign Quota status of the building. The developer is obligated to disclose this.
• Confirm the developer holds an EIA licence (Environmental Impact Assessment) for projects exceeding 80 units.
• Ensure the agreement includes a clause allowing deposit refund if the Foreign Quota is unavailable at the time of transfer.

Scenario 2: Buying on the secondary market in Thailand

On the resale market, the reservation agreement is less standardised. The agent or seller prepares a document that holds the property while due diligence is conducted. The deposit goes directly to the seller or the agent's account, with no statutory requirement for protected holding.

Verifying the chanote title (โฉนด) at the local Land Office is critical. The chanote is Thailand's equivalent of a title deed - a physical document, not an electronic registry entry. Any review requires either a visit to the Land Office or engagement of a qualified lawyer.

Scenario 3: Buying a property in Cambodia

In Phnom Penh and Siem Reap, the Booking Form functions similarly to a Thai reservation agreement, but the legal framework differs. The Law on Foreign Ownership (2010) permits foreigners to acquire units from the first floor upward; the ground floor is reserved for Cambodian nationals.

Instead of a chanote, buyers should require a hard title issued by the Ministry of Land Management. This is the only title that provides full protection against third-party claims. A soft title, registered only at the commune (sangkat) level, carries significant legal risk and should be avoided.

Comparison table

Parameter	Thailand - Primary Market	Thailand - Secondary Market	Cambodia
Typical deposit	50,000 - 200,000 THB	1 - 5% of price	USD 1,000 - 5,000
Reservation validity	14 - 30 days	7 - 30 days	14 - 30 days
Ownership form (foreign buyer)	Freehold (49% quota) or 30-year leasehold	Freehold or leasehold	Freehold from 1st floor upward
Title document	Chanote	Chanote (verified at Land Office)	Hard title
Deposit refund	Only if specified in contract	Negotiable	Usually non-refundable
Contract language	English + Thai	Often Thai only	English + Khmer
Legal counsel	Recommended - approx. 30,000-80,000 THB	Essential	Essential - approx. USD 500-1,500

Risks and mistakes

1. No refund clause in the agreement. This is the most common error. If the reservation agreement does not specify conditions for a refund, the deposit is forfeited even if the transaction falls through due to the developer's fault. Negotiate the following language: 'Deposit shall be fully refundable if the foreign ownership quota is unavailable at the time of transfer.'

2. Signing a document only in Thai or Khmer. Without an English version, the buyer has no meaningful oversight of their obligations. Always insist on a bilingual contract.

3. Skipping Foreign Quota verification. In 2026, many buildings in popular locations such as Sukhumvit in Bangkok and Jomtien in Pattaya have their foreign quota fully allocated. Reserving a unit without confirming availability within the 49% limit means the buyer may be forced into a 30-year leasehold or a Thai company structure.

4. Transferring funds outside the SWIFT banking channel. To register freehold ownership for a foreign national at the Thai Land Office, the buyer must demonstrate that funds were remitted from abroad via SWIFT. The Thai bank issues a Thor Tor 3 form (Foreign Exchange Transaction Form) as evidence. Cash payments or domestic transfers disqualify the buyer from freehold registration.

5. Overlooking home-country tax obligations. International investors who are tax residents in their home country must typically declare rental income from foreign property. Double taxation treaties (Thailand has agreements with numerous countries) may reduce or eliminate double taxation, but require proper documentation. Consult a tax adviser in your jurisdiction.

6. Using a Thai company structure without genuine business purpose. A Thai Co., Ltd. with nominee shareholders is formally illegal under the Foreign Business Act (Section 36). Thai authorities periodically investigate such structures, particularly in Phuket and Koh Samui. This route carries significant legal exposure.

7. Wiring funds the same day you first see the document. This should never happen. Allow time for independent legal review before any transfer.

7 clauses that must appear in your reservation agreement

The following represent the minimum standard. Absence of any of these is a red flag:

1. Unit identification - unit number, floor, size in square metres, building name.
2. Price and currency - total amount in THB or USD, payment method and schedule.
3. Deposit amount and refund conditions - precise circumstances under which the deposit is returned.
4. SPA signing deadline - a specific date or a defined number of days from reservation.
5. Foreign Quota confirmation (Thailand) or confirmation that the unit is above ground floor (Cambodia).
6. Governing law and jurisdiction - specifying Thai or Cambodian courts, or an arbitration clause.
7. Due diligence withdrawal right - the buyer's right to exit with a full deposit refund if title defects are discovered within a defined period.

Negotiating these clauses is not a sign of distrust - it is standard practice in professional cross-border transactions. Premium developers in Thailand and Cambodia are fully accustomed to these requirements from international buyers.

FAQ

Is a reservation agreement in Thailand legally binding?

Yes. Once signed and the deposit paid, both parties are bound by its terms. Under Thailand's Civil and Commercial Code, it constitutes a binding agreement to complete a future transaction.

How much is the reservation deposit for a condominium in Thailand?

On the primary market, typically 50,000 to 200,000 THB (approximately USD 1,400 to 5,700 in 2026). On the secondary market, deposits usually range from 1 to 5 percent of the purchase price.

Can I get my deposit back if I change my mind?

Only if the reservation agreement contains an explicit refund clause. Without such a provision, the deposit is forfeited to the seller.

What is the chanote and how does it differ from a standard title deed?

The chanote is a physical document issued by the Thai Land Office confirming full ownership rights. Unlike electronic title registries common in many countries, it is not publicly searchable online. Verification requires a visit to the Land Office or engagement of a local lawyer.

Can a foreign national buy a ground-floor unit in Cambodia?

No. The 2010 Law on Foreign Ownership restricts foreigners to units from the first floor upward. The ground floor is reserved for Cambodian citizens.

How does remote purchasing work from abroad?

The buyer grants a Power of Attorney notarised in their home country, with an apostille under the Hague Convention. A lawyer in Thailand or Cambodia then signs documents and represents the buyer at the Land Office.

What additional costs should a buyer expect in Thailand?

On the primary market, developers typically cover most transfer fees. On the secondary market, costs include a transfer fee (2% of the official appraised value), withholding tax or specific business tax on the seller's side, and Land Office registration fees. Total transaction costs range from approximately 1 to 6 percent of the purchase price, depending on how fees are negotiated.

Do I need a Thai bank account to buy property?

It is not a formal requirement, but it simplifies the process significantly. Funds must arrive from abroad via SWIFT, and the Thai bank will issue the Thor Tor 3 form, which is required to register freehold ownership for a foreign buyer.

How long does the process take from reservation to title transfer?

On the secondary market in Thailand, typically 30 to 60 days. On the primary market for off-plan projects, completion can be 1 to 3 years from the reservation date.

Is a Cambodian reservation agreement structured the same way as in Thailand?

The structure is similar, but Cambodian Booking Forms tend to be more detailed and include a staged payment schedule tied to construction milestones. Deposits and prices are denominated in US dollars, which is the de facto transaction currency in Phnom Penh and Siem Reap.

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