Many foreign nationals who own assets in Thailand have already prepared a will in their home country. A common question is whether that will can be used to deal with Thai assets without preparing a separate Thai will. This guide explains how a foreign will may affect assets in Thailand and what overseas heirs should consider.
For an overview of the entire probate and inheritance process, see our main Probate & Inheritance guide.
What Happens When the Deceased Left a Foreign Will?
When a person dies leaving a will made abroad, and the estate includes assets in Thailand, the foreign will may be relevant to the distribution of those assets. However, the will does not automatically govern Thai assets without further steps.
The Thai court will examine the will to assess its form, validity, and applicability to the Thai estate. The court may need to determine whether the will complies with the formal requirements of the country where it was made, or whether it meets Thai statutory formalities.
Can a Foreign Will Be Presented in Thailand?
A will made abroad may be presented in Thai probate proceedings. However, practical difficulties can arise, particularly regarding language, execution, and authentication.
The will and supporting documents generally need to be translated into Thai by a certified translator. Depending on the country of origin, the documents may also require legalization or apostille authentication before they can be used in Thailand.
Why the Form and Validity of the Will Matter
The form and validity of a will are important because Thai law, and the conflict-of-laws rules that determine which law applies, may require the will to meet certain formal requirements. A will that is valid in one country may not necessarily meet the requirements of another.
The court will consider factors such as:
- Whether the will was executed in accordance with the law of the country where it was made
- Whether the will meets Thai statutory formalities
- Whether the testator had the legal capacity to make the will
- Whether the will was made freely and without undue influence
- Whether the will has been properly authenticated
Certified Copies and Original Documents
Where the original will cannot be located, a certified copy may be submitted, although the court may require additional evidence to establish that the copy is a true and accurate reproduction of the original. Where possible, the original will should be preserved and submitted to the court.
Translation into Thai
If the will is not in Thai, a certified Thai translation is generally required. The translation should be prepared by a qualified translator and may need to be certified by a notarial services attorney or other authorized person.
Accurate translation is important because the court will rely on the Thai translation to understand the terms of the will. Ambiguities or errors in translation may lead to disputes or delays.
Authentication / Legalization Where Applicable
Depending on the country of origin, foreign documents may require legalization or apostille authentication before they can be used in Thailand. The specific requirements depend on whether the issuing country is a party to the Hague Apostille Convention and the type of document involved.
A lawyer can advise on the applicable requirements and assist with the authentication process.
Thai Probate Proceedings
Even where a foreign will exists, Thai probate proceedings are generally required before estate assets in Thailand can be accessed or transferred. The court will appoint an estate administrator to manage and distribute the estate.
For a detailed guide to the appointment process, see our estate administrator guide.
Appointment of an Estate Administrator
The court will appoint an estate administrator, who may be the executor named in the foreign will or another person with a legal interest in the estate. The administrator has authority to collect assets, contact banks, pay debts, and distribute the estate to the lawful heirs.
Foreign Executors and Thai Proceedings
A foreign executor named in a will may apply to the Thai court for appointment as an estate administrator. However, practical steps may be necessary, such as providing a power of attorney to a lawyer in Thailand, since the executor may not be able to remain in Thailand for the entire process.
The court will consider the suitability of the nominated person before making an appointment. Where the executor is overseas, the court may require additional documentation to verify the executor's identity and authority.
Thai Bank Accounts
Where the estate includes Thai bank accounts, the bank may freeze the accounts upon learning of the death. Access typically requires a court order appointing the estate administrator. For more information, see our guide on Thai bank accounts after death.
Thai Property and Other Assets
Where the estate includes property in Thailand, the transfer of ownership may require a court order and compliance with Thai land and property laws. Foreign ownership of land is generally restricted, and a foreign heir who inherits land may need to dispose of it within a specified period.
For guidance on the rights of foreign heirs, see our page on foreign heirs and inheritance in Thailand.
Potential Conflict Between Multiple Wills
Where a person has made wills in different countries, conflicts may arise. One will may inadvertently revoke another, or the wills may contain inconsistent provisions regarding the same assets.
To avoid such conflicts, many foreign nationals choose to prepare a separate Thai will dealing exclusively with assets in Thailand, alongside a will in their home country. The wills should be drafted carefully so they complement rather than unintentionally revoke one another. For guidance, see our page on Thai wills for foreigners.
Cross-Border Probate Issues
Where the deceased held assets in more than one country, cross-border probate issues may arise. These may include:
- Coordination between probate proceedings in different countries
- Recognition of foreign wills or court orders in Thailand
- Translation and legalization of foreign documents
- Transfer of assets between jurisdictions
- Potential tax and inheritance considerations across borders
Cross-border estate matters can be legally complex, and professional advice is strongly recommended.
How Nathee Legal Can Assist
Our legal team assists clients with foreign wills involving Thai assets by:
- Reviewing foreign wills and assessing their relevance to Thai assets
- Advising on translation, legalization, and authentication requirements
- Preparing and filing probate petitions in Thai courts
- Applying for appointment of an estate administrator
- Coordinating with banks, the Land Department, and other authorities
- Advising on potential conflicts between multiple wills
- Coordinating cross-border estate matters with foreign counsel
If you are dealing with a foreign will that may affect assets in Thailand, obtaining legal advice early can help avoid delays and complications.
Frequently Asked Questions
Is a foreign will automatically valid in Thailand?
Not automatically. A will made abroad may be relevant to Thai assets, but its form, validity, and language must be assessed. The relevant documents and circumstances must be reviewed before assuming that a foreign will can be used without complication in Thailand.
Does a foreign will need to be translated into Thai?
In many cases, yes. If the will is not in Thai, a certified Thai translation is generally required for use in Thai court proceedings and for submission to Thai authorities such as the Land Department.
Can a foreign executor administer Thai assets?
A foreign executor named in a will may need to apply to the Thai court for appointment as an estate administrator. The court will consider the validity of the will and the suitability of the applicant. Practical steps, such as providing a power of attorney, may be necessary.
What if there are multiple wills from different countries?
Multiple wills may create conflicts, particularly if one will inadvertently revokes another. The documents should be reviewed carefully to determine which will governs which assets. Legal advice is strongly recommended where multiple wills exist.
Should I prepare a separate Thai will for Thai assets?
Many foreign nationals choose to prepare a separate Thai will dealing exclusively with assets in Thailand, alongside a will in their home country. This can simplify probate and reduce administrative complications, provided the wills are drafted carefully to avoid conflicts.