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Foreign Spouse's Contribution to Land Purchase and the Section 86 Declaration
Thai Spouse (Land Holder) v Foreign Spouse (Estate)
Composite summary — not a single reported case. This entry distils a settled line of Thai Supreme Court (Dika / ฎีกา) authority for legal education. It is not a transcript of one reported judgment, and the heading is not a citable case number. Do not cite it as specific case law — consult a Thai-qualified lawyer for the authoritative Dika number and current application.
Facts
A Thai national and a foreign national married. During the marriage, land was acquired in the sole name of the Thai spouse. At the Land Office, both spouses signed the standard joint declaration required by Ministry of Interior regulation, stating that the purchase funds were the sole personal property (sin suan tua) of the Thai spouse and that the foreign spouse made no contribution. After the marriage broke down (in some reported lines of authority, after the death of the foreign spouse), the foreign spouse — or the foreign spouse's estate — sought to characterise the land as marital property (sin somros) and to claim a share, arguing that purchase money had in fact come from the foreign spouse's overseas earnings. The Thai spouse relied on the signed declaration to defeat the claim and retain the land.
Legal Issue
Whether a foreign spouse who signed a Land Office declaration disclaiming any contribution to a land purchase can later assert a beneficial interest in that land, and what the legal effect of the declaration is.
Holding
The Supreme Court has consistently treated the signed Land Office declaration as strong evidence — and in practical terms binding evidence — that the land is the personal property (sin suan tua) of the Thai spouse. A foreign spouse who voluntarily signed the declaration is generally precluded from asserting a marital-property claim over the land itself, although a separate claim for return of money contributed may, in some circumstances, be available as a contractual or unjust-enrichment matter.
Reasoning
Section 86 of the Land Code prohibits foreigners from owning land except under narrow exceptions. The Ministry of Interior procedure exists precisely to prevent foreigners from acquiring land beneficially through their Thai spouse. The declaration is a sworn instrument made before a competent official; permitting a foreign signatory later to contradict it would both undermine the Land Code's policy and reward a misrepresentation made to a state officer. The court therefore gives the declaration strong evidentiary weight against the foreign spouse.
Significance
This line of authority is the foundation of how Thai courts treat 'foreign-funded but Thai-titled' land. It explains why the declaration is non-negotiable at the Land Office and why mixed-nationality couples cannot rely on informal trust arrangements to defeat Section 86. It also explains why structuring through usufruct, superficies, lease or a properly capitalised Thai company is the only durable route for the foreign spouse.
Practical Takeaway
If a foreign spouse contributes purchase money, do NOT rely on later claiming a marital-property share — the Land Office declaration will almost certainly defeat that claim. Use a properly drafted usufruct, superficies, registered long lease, or loan agreement secured against the property, all signed BEFORE registration. Take Thai legal advice before any funds leave a foreign account.
Cited Statutes
- Land Code B.E. 2497 (1954), Section 86
- Civil and Commercial Code, Sections 1471–1474 (sin suan tua / sin somros)
- Ministry of Interior Regulation on land acquisition by Thai nationals married to foreigners
This entry summarises a representative line of authority from the Thai Supreme Court (ฎีกา). It is intended for general legal education only and is not a substitute for advice from a Thai-qualified lawyer. Individual Dika case numbers are being verified against primary sources; until then these entries are presented as composite doctrinal summaries.
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