Prenuptial Agreement — Both Foreign Nationals in Thailand
สัญญาก่อนสมรส — ชาวต่างชาติทั้งสองฝ่าย ในไทย
Quick Answer
Dual-governing-law prenup — compliant with CCC §1465 and home-country doctrine (UPMAA, MCA 1973, etc.); notary chain + Apostille end-to-end — quoted after review.
Timeline: on a timeframe confirmed after document review drafting · Thai counsel + partner foreign counsel · notary + Apostille 3–5 days.
Legal Basis
CCC §1465–1469 (Thailand) plus the home-jurisdiction matrimonial regime (UPMAA US, MCA 1973 UK, Family Law Act 1975 AU, BGB §1408 DE) — must satisfy both systems concurrently.
Who it is for
Expat couples registering in Thailand who need the prenup enforceable in both Thailand and home jurisdiction (US, UK, Australia, Germany, France etc.).
Key Clauses
- Dual-governing-law clause (TH + home) with conflict-of-law tie-breaker
- International separate-property schedules (A + B)
- Spousal support / alimony formula
- Sunset clause (mandatory in some states, e.g. NY UPMAA)
- Independent legal advice acknowledgment (mandatory UK, AU, US)
Documents
- Passports of both parties
- Legalised affirmations of freedom to marry
- Pre-marriage asset & liability schedule
- Attorney engagement letters (both jurisdictions)
Pitfalls
- Foreign-only text — Thai registrar refuses
- No ILA — some states (CA, NY) may find it unconscionable
- No Apostille — 4–8 week retro-fix if needed for enforcement abroad
FAQ
- Do both parties need their own lawyer?
- In many jurisdictions (UK, AU, several US states) yes — ILA is required or the agreement is vulnerable to unconscionability attack.
- Will my home country enforce it?
- Apostille/legalise the Thai original and lodge it with home-country counsel; enforcement depends on domestic prenup doctrine.
Other scenarios
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Official sources — marriage & family registration
The information on this page follows the official sources below. Always check the latest version before you file.
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Frequently asked questions
- How does a foreigner register a marriage in Thailand?
- The foreign partner first obtains an affidavit of freedom to marry from their embassy in Thailand, has it translated into Thai and legalized by the Department of Consular Affairs, and then both parties register the marriage at any district office (amphoe) with passports and two witnesses. Since the Marriage Equality Act took effect on 23 January 2025, same-sex couples register on exactly the same basis.
- Do we need an interpreter at the district office?
- Yes in practice — most district offices require that a foreign party who does not read Thai be assisted by an interpreter, and many request that the interpreter present identification and sign the register. Some offices also expect a prenuptial agreement, if any, to be presented before registration, because a prenuptial agreement in Thailand is only valid when registered together with the marriage.
- Is a Thai marriage recognized in my home country?
- A marriage registered at a Thai district office is generally valid worldwide, but recognition procedures differ: many countries want the Thai marriage certificate and the Kor Ror 2 extract translated, legalized by the MFA and certified by their embassy before it is entered in their civil register. Some countries additionally require registration with their consulate within a set period.
- How is a prenuptial agreement made enforceable in Thailand?
- Under the Civil and Commercial Code a prenuptial agreement must be in writing, signed by both spouses and two witnesses, and registered with the marriage at the district office on the day of registration — an agreement signed afterwards is void as to property arrangements. It also cannot contradict public order or the rules on parental duties, so the drafting must be Thailand-specific rather than a translated foreign template.