Last reviewed by legal editorial team: 23 July 2026
Planning a marriage in Thailand involves important legal and financial considerations, particularly when one or both parties hold individual assets, business interests, or foreign properties. A prenuptial agreement under Thai law provides a structured framework to define personal property, separate future financial liabilities, and establish clear expectations prior to registration.
Under the Thai Civil and Commercial Code, a prenuptial agreement must meet strict statutory requirements to be legally enforceable. An agreement that fails to follow prescribed formal procedures or contains clauses contrary to Thai public order is deemed void. TILA LEGAL assists foreign nationals and Thai citizens in drafting custom, bilingual prenuptial agreements designed to protect personal wealth while fully respecting Thai legal standards.
Key Summary: Thai Prenuptial Agreements
- Mandatory Timing: Must be entered into prior to marriage and registered at the local district office (Amphoe) at the exact time of marriage registration.
- Legal Standard: Governed by Sections 1465 to 1469 of the Civil and Commercial Code of Thailand.
- Bilingual Execution: Drafted simultaneously in Thai and English to ensure mutual understanding and court readability.
- Flexible Execution: Can be signed in person at our office or sent via email to print and execute with witnesses.
- Turnaround & Fee: Prepared within 3 to 4 business days. Fixed professional fee of 20,000 THB (+7% VAT).
Legal Framework Under the Thai Civil and Commercial Code
Thai family law handles marital property through a statutory division system. In the absence of a registered prenuptial agreement, assets acquired during the marriage automatically become joint marital property (*Sin Somros*). A properly executed prenuptial agreement allows parties to modify these statutory default rules within the boundaries permitted by law.
Distinction Between Marital and Personal Property
To create an effective agreement, Thai law categorizes property into two primary classifications:
- Personal Property (Sin Suan Tuan - Section 1471): Assets owned by either spouse prior to marriage, tools of trade, personal effects, or property acquired during marriage through a specific will or gift indicating it is personal property.
- Marital Property (Sin Somros - Section 1474): Assets acquired during marriage, income earned from personal property during marriage, or property acquired through a will or gift given to both spouses jointly.
A prenuptial agreement allows parties to explicitly list existing personal assets, define how future income or property appreciation will be categorized, and specify management authority over specific assets during the marriage.
Statutory Requirements and Critical Risk Avoidance
A prenuptial agreement in Thailand is subject to strict formal restrictions under Section 1465 and Section 1466 of the Civil and Commercial Code. Failure to observe any of these statutory rules renders the agreement unenforceable under Thai law:
1. Simultaneous Registration Requirement
The agreement must be attached to the official marriage register at the local District Office (Amphoe or Khet) on the day of marriage registration. Agreements signed after marriage or presented to authorities after the marriage certificate has been issued are void under Thai law.
2. Prohibition of Post-Marriage Alterations Without Court Sanction
Once registered, a prenuptial agreement cannot be altered or voided by mutual agreement of the spouses alone. Any modification or cancellation during marriage requires formal authorization from a Thai court (Section 1467).
3. Public Order and Good Morals Compliance
Clauses that violate public order, mandatory statutory support duties, or moral standards are void. For example, clauses attempting to completely waive child maintenance responsibilities or penalize personal behavior through illegal forfeitures will not be upheld by a Thai tribunal.
Who This Service Is Designed For
Our customized prenuptial agreement drafting service is recommended for couples entering marriage in Thailand under the following circumstances:
- Foreign nationals marrying a Thai citizen in Thailand who wish to protect pre-existing personal assets or corporate shares.
- Couples where one or both parties own real estate, intellectual property, or significant business holdings in Thailand or abroad.
- Individuals with family trust distributions, expected inheritances, or complex international investment portfolios.
- Parties wishing to clarify financial responsibilities, debt liabilities, and property rights prior to legal registration.
Scope of Our Drafting Service
TILA LEGAL provides precise legal drafting services structured around your specific instructions and asset distribution goals. Our service covers the full legal preparation process to ensure the final contract is recognized by Thai registration officials.
| Service Element | Details & Execution |
|---|---|
| Languages Included | Dual-language drafting in Thai and English (side-by-side or parallel sections) for clarity and official submission. |
| Turnaround Time | 3 to 4 business days following receipt of complete asset schedules and identity documents. |
| Execution Options | In-person signing at our Bangkok office OR email delivery for independent printing (3 copies) and signing with 2 witnesses. |
| Fixed Professional Fee | Lawyer Fee: 20,000 THB VAT (7%): 1,400 THB Total: 21,400 THB |
Information & Documents Required
To initiate the drafting process, clients may submit copies of the following documents via email:
- Identification Documents: Clear copy of the foreign national's passport and a copy of the Thai fiancée's Thai National Identification Card.
- Asset Inventory: A comprehensive schedule listing personal assets of both parties to be explicitly declared in the agreement (e.g., real estate deeds, company shares, vehicles, investments).
- Financial Accounts: List of primary bank accounts, institution names, and account numbers held by both parties.
- Current Residential Addresses: Registered addresses of both parties in Thailand or overseas.
Related Family & Asset Services
Couples preparing for marriage in Thailand often require additional related legal arrangements to establish comprehensive estate and asset protection:
- Thailand Marriage Registration: Assistance with embassy affidavits, legal translations, and district office procedures.
- Thai Wills & Inheritance Planning: Drafting legally compliant Thai wills to complement your prenuptial financial structure.
Frequently Asked Questions
Can we sign a prenuptial agreement after getting married in Thailand?
No. Under Thai law, an agreement made after marriage is classified as a postnuptial agreement. Unlike prenuptial agreements registered at marriage, postnuptial agreements under Section 1469 of the Civil and Commercial Code can generally be revoked by either spouse at any time during the marriage or within one year of divorce, making them far less secure for asset protection.
Do both parties need to attend the signing in person at TILA LEGAL's office?
No, an in-person office visit is optional. Once the agreement is finalized and approved by both parties, you may either execute the document at our Bangkok office or receive the finalized files via email. If you choose email delivery, you will print three copies and sign them alongside two witnesses. The witnesses can be any individuals aged 20 or older, and they do not need to be the same witnesses present during your marriage registration at the District Office (Amphoe).
How long does the drafting process take?
The standard turnaround time is 3 to 4 business days from the date we receive complete asset information, identity copies, and specific drafting requirements from both parties.
Request an Initial Assessment for Your Prenuptial Agreement
To help our legal team evaluate your proposed terms and prepare a tailored draft, please summarize your key requirements. Beneficial details to include are your nationality, current location in Thailand or overseas, intended marriage registration timeline, list of major personal assets to safeguard, and any specific terms you wish to incorporate. A preliminary summary is sufficient to initiate our review.
Tell Us About The Agreement You Need
Initial enquiries are handled by email so that our legal team can review the relevant information before recommending the appropriate course of action.
About TILA LEGAL
TILA LEGAL is a private law firm in Thailand. We provide legal advisory, document preparation, and related professional services for foreign nationals, international clients, and local residents. For more than 20 years, our practice has assisted clients with family law matters, property transactions, corporate structuring, and legal compliance.
Our work includes reviewing the legal and practical issues relevant to proposed premarital arrangements, drafting compliant dual-language agreements under the Thai Civil and Commercial Code, and advising on statutory requirements prior to marriage registration. TILA LEGAL is not affiliated with any government authority and does not act on behalf of any government agency. District Office registration decisions remain subject to official registrar discretion.
Disclaimer: The information provided on this page is for general information purposes only and does not constitute formal legal advice. Family law regulations and civil code interpretations are subject to specific factual circumstances. Parties considering a prenuptial agreement should seek customized legal advice prior to marriage registration.
