Affirmation of Freedom to Marry in Thailand: British Applicant Guide

If you are a British national planning to marry in Thailand, you may need a marital status affirmation to show that you are free to marry. You will usually also need a certified copy of your British passport. The requirements of the Thai district office where you intend to register your marriage should be checked before you apply.

This guide explains the main stages: checking the district office’s requirements, applying for your documents, attending the British Embassy appointment, arranging translation and legalisation, and registering your marriage in Thailand.

1. Check where you intend to marry

Contact the Thai district office, known as an amphur or khet, where you plan to register your marriage. Ask which documents it needs from both partners. Requirements can vary, and the province and intended month of marriage matter when you apply for your affirmation.

2. Apply online for your affirmation

British nationals apply for a marital status affirmation through the UK government’s online service. The application asks for details including your passport, address, intended month and province of marriage, your partner’s identity document, and two referees living outside Thailand. If you were previously married or in a civil partnership, you must provide evidence that it has ended.

The UK government currently lists a fee of £50 for the affirmation and £25 for a certified passport copy. Check the fee and document list before applying, as they can change.

3. Attend your British Embassy appointment

After applying online, book an appointment at the British Embassy in Bangkok. Bring the original documents you uploaded. At the appointment, you can check the affirmation’s details, make your declaration and sign it.

Plan your dates carefully. The UK government advises booking the appointment at least seven days after applying and not applying more than three months before your intended marriage. Your affirmation identifies the month and province in which you intend to marry.

4. Arrange Thai translation and legalisation

The affirmation and certified passport copy need to be translated into Thai and legalised by Thailand’s Ministry of Foreign Affairs before they can be used for marriage registration. The MFA operates an online appointment system and has legalisation offices in several locations, including Pattaya. Allow time for these steps before your intended registration date.

If you need help preparing your paperwork, see our Thai–English translation service in Pattaya. Tell us which district office will receive your documents so its requirements can be checked.

5. Register your marriage at the district office

Take the required documents to the district office in the province stated on your affirmation. The registrar conducts the legal marriage registration and issues Thai marriage certificates. A religious or family celebration alone does not register a marriage under Thai law.

Will a Thai marriage be recognised in the UK?

A marriage conducted according to Thai law will generally be recognised in the UK if the couple could also legally marry under UK law. Keep your Thai marriage documents safe. If you need to use them for a UK application, check the receiving authority’s translation requirements.

Marriage does not itself grant a UK visa or permission for a spouse to live in the UK. If you plan to move together, the relevant family visa requirements must be considered separately.

For the application link, full document list and latest instructions, read the UK government’s guidance on marrying in Thailand before booking appointments.