Prenuptial agreements in Thailand
Prenuptial agreements allow engaged couples to contractually define property rights before marriage. Governed by the Civil and Commercial Code, Thai prenups differ from common-law countries: registration at the amphoe at marriage is mandatory for enforceability. A signed drawer document is insufficient.
Thai Visa Centre handles marriage plus prenup registration for international couples daily. For drafting detail, see our Thailand prenuptial agreement guide and marriage property guide.
Oral prenuptial agreements are void under Thai law.
Must register at the same amphoe as marriage, not after.
Typically one from each side, both aged 18 or older.
Sin somros marital property divided equally on divorce.
Quick reference: Thai prenup validity
| Requirement | Detail |
|---|---|
| Form | Written only |
| Timing | Before or at marriage registration, not after |
| Registration | Same amphoe as marriage |
| Witnesses | Two witnesses, typically one per side, aged 18+ |
| Content | Property and debt division; not child welfare violations |
| Independent advice | Recommended for each party |
Typical prenup clauses for Thai-foreign couples
- Schedule of pre-marital assets including condo units, vehicles, and brokerage accounts
- Treatment of income during marriage
- Debt allocation for student loans, mortgages, and business liabilities
- Business share ownership structure
- Inheritance kept separate if received during marriage
- Spousal support caps or waivers within legal limits
- Governing law clause for Thailand-registered marriage
Commonly excluded or restricted
- Child custody and support waivers
- Illegal penalties for adultery beyond civil framework
- Provisions against public order or good morals
Default law without a prenup
If no valid prenup exists, sin suan tua personal property generally stays with the owner. Sin somros marital property is divided equally on divorce. Commingling can convert character of assets. Bank account deposits matter.
Foreigners still cannot own land. A prenup clarifies claims, not land title. Read our marriage property guide for property regime detail.
Registration workflow with marriage
Foreign partners still complete embassy affirmation, translation, and MFA for marriage. The prenup may be Thai with English translation attached for foreign records.
Draft prenup
Thai lawyer drafts agreement. Review principles and asset schedules with both partners.
Review by both parties
Each party reviews with separate counsel recommended for asset-heavy cases.
Amphoe marriage appointment
Sign marriage and prenup with witnesses at the district office.
Registrar records both
Marriage and prenup entered on the marriage register together.
Certificates issued
Collect marriage certificate and confirm prenup registration on record.
Marriage process detail: marriage registration guide. MFA legalisation at the Ministry of Foreign Affairs.
Enforceability in divorce
| Path | Prenup role |
|---|---|
| Administrative divorce | Parties submit property division matching registered prenup terms. |
| Contested court divorce | Court enforces registered prenup for property barring public policy conflict. |
Invalid or unregistered agreements fall back to default marital property law. See our Thai divorce law guide.
International couples: dual jurisdiction
Many couples need a Thai registered prenup for Thailand-registered marriage, a home-country agreement or mirror contract for foreign assets, and MFA legalisation plus apostille chain for foreign courts. Enforcement abroad is not guaranteed. Consult lawyers in both jurisdictions.
Related family topics
Frequently asked questions
General answers on prenuptial agreements in Thailand. Asset-heavy or multi-country prenups require licensed Thai family legal drafting.
Q:Are prenups common in Thailand?
A:Increasingly among international and second-marriage couples. Less universal among traditional first marriages without significant assets.
Q:Can same-sex couples register prenups?
A:Yes. Same registration rules apply since January 2025 marriage equality legislation.
Q:What does a prenup cost in Thailand?
A:Lawyer drafting fees vary. Amphoe registration fee is minimal. Request a written quote for marriage plus prenup package coordination.
Q:Can we notarise instead of registering?
A:Notarisation alone is insufficient. Amphoe registration at marriage is mandatory for enforceability under Thai law.
Q:What happens without a valid prenup?
A:Sin suan tua personal property generally stays with the owner. Sin somros marital property is divided equally on divorce unless commingling changes character.
Q:Can a prenup grant foreign land ownership?
A:No. Foreigners still cannot own land. A prenup clarifies contribution claims, not land title rights.
Q:Is a home-country prenup enough for Thailand?
A:Many couples need both a Thai registered prenup and a home-country agreement for foreign assets. Enforcement abroad is not guaranteed.
Q:When must we sign the prenup?
A:At or before amphoe marriage registration on the same day at the same office. Signing after registration does not receive standard prenuptial treatment.