Marrying in Thailand as a U.S. Citizen
Thailand · Asia
Marrying in Thailand as a U.S. Citizen
What Thailand requires from an American before it will register a marriage: the documents, whether each one needs a notary, an apostille or a translation, and how long the U.S. side takes.
- Authentication
- Full consular legalisation
- Translation
- Into Thai
- Residency
- No long residency requirement, but the paperwork runs through two ministries.
- Embassy wedding
- Not permitted
Your documents, and what each one needs
Shown for a couple where neither has been married before. If either of you is divorced or widowed, the wizard on the main page adds the extra records.
| Document | Where it comes from | Notary | Authentication | Translation |
|---|---|---|---|---|
| Your passport | You already have it | No | None | No. |
| Birth certificate | A certified copy from the vital records office of the state you were born in | No, it is already a public record | Consular legalisation | Yes, into Thai, normally by a translator the local authority recognises. |
| Affidavit of eligibility to marry | Sworn by you, because no U.S. authority issues a Certificate of No Impediment | Yes, this is the one document that must be sworn | Depends which route you take | Yes, into Thai, normally by a translator the local authority recognises. |
Your passport. Identity only. A passport is never apostilled and any service offering to is selling you something you do not need.
Birth certificate. The full chain: state authentication, then the U.S. Department of State, then legalisation by the Thailand mission. A hospital souvenir certificate or a photocopy will be refused.
Affidavit of eligibility to marry. Two routes. Sworn before a U.S. consular officer at the embassy in Thailand for $50 per seal, which many local registrars accept directly, sometimes after attestation by the local foreign ministry. Or notarised at home and then run through the full legalisation chain.
What Thailand itself requires
Residency or notice: No long residency requirement, but the paperwork runs through two ministries.
- The affidavit sworn at the U.S. Embassy in Bangkok must then be translated and legalised by the Thai Ministry of Foreign Affairs before the district office will act.
- Thailand joins the Apostille Convention on 28 February 2027, which will shorten this chain.
Requirements differ by municipality, not only by country. Ask the office that will actually perform the marriage for its own list before you order or authenticate anything.
After the wedding
The marriage is valid in the United States because it was valid in Thailand. Nothing needs registering at home. What you do need is the Thailand marriage certificate, legalised for use in the United States, and a certified translation if it is not in English. Get that before you leave the country; doing it afterwards from another continent is far harder.
Questions people actually ask
Do my documents need an apostille for Thailand?
Thailand is outside the Apostille Convention, so an apostille has no effect there. The documents need the full legalisation chain ending at the Thailand mission in the United States.
Do they need translating?
Yes, into Thai, and normally by a translator the local authority recognises rather than one you choose. Translate after authentication, not before.
Where do I swear the affidavit that I am free to marry?
Either at the U.S. embassy or consulate in Thailand, at $50 per seal and by appointment, or before a notary at home and then authenticated. The United States issues no Certificate of No Impediment, so this sworn statement is the substitute every time.
What catches people out in Thailand?
The affidavit sworn at the U.S. Embassy in Bangkok must then be translated and legalised by the Thai Ministry of Foreign Affairs before the district office will act.
Will the marriage be valid back in the United States?
Yes, if it was validly performed under Thailand law. No U.S. official needs to be present and nothing is registered at home. Keep the marriage certificate, authenticated before you leave.
This guide is published by a private document processing service. It is not legal advice and we are not a government agency. Requirements change without notice, so confirm anything critical with the mission before you post documents.
