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Sale with the Right of Redemption

FAQs Relating to Sale with the Right of Redemption (Kai Fak)

A Sale with the Right of Redemption (Kai Fak) is a legally recognized transaction under the Civil and Commercial Code of Thailand that allows a property owner to sell property while retaining the right to repurchase it within a specified period. Although commonly used in Thailand as an alternative financing arrangement, this type of contract involves a full transfer of ownership and carries significant legal consequences if the redemption period expires. Understanding the risks, timelines, and registration requirements is essential before entering into a Kai Fak agreement.

What is a Sale with the Right of Redemption?

A Sale with the Right of Redemption (Kai Fak) is a contract of sale under the Civil and Commercial Code of Thailand whereby the seller transfers ownership of immovable or movable property to the buyer, but retains the legal right to redeem the property within a specified period.

Redemption occurs when the seller repays the agreed redemption price to the buyer within the registered period. Upon valid redemption, ownership is transferred back to the original seller.

For immovable property, the redemption period must be registered on the Title Deed at the Land Department in order to be enforceable against third parties.

The buyer must return the property in the condition in which it exists at the time of redemption. If the property has been destroyed or deteriorated due to the buyer’s fault, the buyer is liable to compensate the seller.

Who Has the Right to Exercise the Right of Redemption?

The following persons may exercise the right of redemption:

  1. The original seller or his/her heirs;
  2. A transferee of the right of redemption; or
  3. Any person expressly granted the right to redeem under the contract.

The right of redemption may be exercised against:

  1. The original buyer; or
  2. A transferee of the property or of a right over the property, provided that, in the case of movable property, the transferee knew at the time of transfer that the property was subject to a right of redemption.

What happens if the seller fails to redeem the property within the Kai Fak period?

If the seller does not exercise the right of redemption within the agreed period, the right automatically extinguishes upon expiration of the redemption period.

The buyer then retains full and absolute ownership of the property, free from the right of redemption.

What happens if the buyer is not present at the time of redemption?

If the buyer cannot be located or refuses to accept payment, the seller may deposit the redemption price with a competent government deposit office within the redemption period.

Redemption is deemed valid from the time payment is made or the deposit is effected within the prescribed period.

For how long may the right of redemption be exercised?

If the contract does not specify a redemption period, the right may not be exercised later than:

  • Ten (10) years from the date of sale in the case of immovable property; and
  • Three (3) years from the date of sale in the case of movable property.

If the contract provides for a longer period, the law automatically reduces it to the statutory maximum of ten years (immovable property) or three years (movable property).

An extension of the redemption period for immovable property must be made in writing and registered with the Land Department to be enforceable against third parties.

What is the Legal Rate of Interest in a Kai Fak?

If the parties do not fix a specific redemption price, the seller may redeem the property by repaying:

  • The original sale price; and
  • A benefit or profit to the buyer, which must not exceed 15% per year of the sale price.

The law limits the agreed benefit in order to prevent the transaction from being treated as a disguised loan charging excessive interest.

If the agreed return exceeds the statutory limit, the excess may not be enforceable.

What is the Difference Between a Kai Fak and a Mortgage?

Although both involve property, a Kai Fak and a mortgage are legally very different.


Mortgage

A mortgage is a security right over immovable property used to secure repayment of a debt. Ownership of the property remains with the borrower.

The mortgage must be registered with the Land Department. If the borrower defaults, the mortgagee must initiate foreclosure proceedings through the court before the property can be sold.

Key characteristics:

  • Ownership remains with the borrower
  • It secures an underlying debt
  • Foreclosure requires court action
  • Commonly used by banks and financial institutions

Kai Fak (Sale with Right of Redemption)

A Kai Fak is not a loan. It is an actual sale of property with a contractual right allowing the seller to repurchase (redeem) the property within a specified period.

Ownership transfers immediately to the buyer at the time of sale.

If the seller fails to redeem within the agreed period, the buyer becomes the absolute owner without needing court foreclosure.

Key characteristics:

  • Ownership transfers immediately to the buyer
  • There may or may not be an underlying debt
  • No foreclosure process is required
  • If the redemption period expires, ownership becomes final

Practical Risk Warning

Although Kai Fak is sometimes used in Thailand as an alternative financing arrangement, it carries significantly higher risk for the original owner.

If the redemption period expires, the seller permanently loses ownership of the property — unlike a mortgage, where foreclosure requires judicial proceedings.

For this reason, Kai Fak transactions should be structured carefully and with legal advice.

Considering a Kai Fak transaction?

Protect your property and your rights. Contact our legal team today for clear advice and proper contract structuring before you sign any agreement.

Legal Disclaimer

This content is provided for general informational purposes only and does not constitute legal advice. Each Sale with Right of Redemption transaction depends on specific facts, contractual terms, and registration requirements under Thai law. Professional legal consultation should be obtained before entering into any Kai Fak or property-related agreement.

This FAQ has been updated and reviewed for accuracy on February 2026 by:
Picture of Jira Chaisiri (Attorney-At-Law and Adviser)
Jira Chaisiri (Attorney-At-Law and Adviser)

Licensed Attorney-At-Law, The Lawyers Council of Thailand
He has over 40 years of legal practice in financial institutions and constitutional public agencies.