Thai citizenship when born overseas
Am I a Thai citizen?
Children born overseas to at least one Thai parent are eligible for Thai citizenship, regardless of the place of birth of that parent.
There is often some confusion about the eligibility of a child born to a Thai parent overseas. The easy answer is that a child born to a Thai citizen, whether in Thailand or outside of Thailand, is automatically born a Thai citizen.
In the case of Thailand, citizenship by birth is by blood, or to use the Latin phrase “jus sanguinis” (by the right of blood). In layman terms, it means the right to citizenship through one’s bloodline or ancestry. The main exception, is when a child is born in Thailand to two foreign parents who both have permanent residence status in the kingdom at the time of birth. In that case, the child will be a Thai citizen from birth due to their parents permanent residence status.
As such, if you were born to a Thai parent overseas, or your children born overseas to a Thai parent, they are eligible to receive Thai nationality.
Apply for a Thai birth certificate in the country of birth
Thailand does not issue ‘citizenship via descent’ certification like many countries. Instead, the Thai birth certificate (สูติบัตร) is the primary document proving ones status as a Thai citizen. Without one, it is impossible to be registered on a Thai House Registration – the ‘tabien baan’ (ทะเบียนบ้าน), or have a Thai passport (หนังสือเดินทาง) or ID card (บัตรประชาชน) issued.
A Thai born overseas will go through life with two birth certificates: the one issued by their country where they were born, as well as their Thai birth certificates which is issued by the Thai embassy in that country.
The first step is to apply for a Thai birth certificate at the Royal Thai embassy in the country of birth. For example, all children born to a Thai parent in the United Kingdom and on the island of Ireland must apply to the Thai Embassy in London, whereas a child born to a Thai parent in the United States must apply to the Thai Embassy in Washington DC.
Requirements for a Thai birth certificate will vary slightly depending on the embassy, however general requirements should include:
- Full birth certificate issued in country of birth*.
- Marriage certificates of the parents**
- Photo’s of the applicants
- Passport/identity documents of the parents
- Thai ID card and house registration copies of the Thai citizen parent.
*Local birth certificate will need to be legalized in the country of birth by the appropriate body. Please contact the relevant embassy for the appropriate national counterpart. For example in the US this will be the Secretary of State and Department of State respectively.
**Please see individual embassy requirements in the case where parents are not married, divorced or deceased.
It is generally not necessary to attend the embassy to apply for a birth certificate; however it is possible that the Father and Mother will be asked to attend the Thai embassy in person if the child was born before 1 March 1992.
Below are links for obtaining birth certificates at major Thai embassies around the globe.
Royal Thai Embassy, Canberra
Click this link
Royal Thai Embassy, Berlin
Click this link (available in Thai and German only)
Royal Thai Embassy, London
Click this link
Royal Thai Embassy, Washington DC
Instruction for applying (Thai only): click this link
List of forms: click this link
Birth certificate form: click this link
Thai Consulate, LA
General contact details: click this link
Thai birth certificate for a foreign born child – in Thailand
In some cases, a person who is eligible for a Thai birth certificate has already moved back to Thailand using a foreign passport.
For a person who is born outside of Thailand to a Thai parent, only the Department of Consular Affairs of the Ministry of Foreign Affairs in Bangkok can assist you in obtaining a Thai birth certificate by liaising with the Thai embassy in the country of birth for the child.
Details of the Department of Consular Affairs are:
Legalization Division , 3rd floor
Department of Consular Affairs
Ministry of Foreign Affairs
123 Chaeng Wattana Road
Tel : 0-2575-1058 and 59 Fax : 0-2575-1054
Service hours : 08.30 – 14.30 hrs. (Closed on Saturday – Sunday and Public Holidays)
Email : firstname.lastname@example.org
Myth buster: It is important to note that your a district office (สำนักงานเขต) in Thailand CAN NOT issue a foreign born child with a Thai birth certificate. Some will claim that they can, but it isn’t possible. The reason is a local district office in every region in Thailand is only able to provide birth certificates for those who are born within their boundaries. As such no district office in Thailand will be able to issue a Thai birth certificate. Once you have obtained the birth certificate from the Thai embassy in the country where the child was born however, the district office can then register them in the family house register, or ‘tabien baan’ (ทะเบียนบ้าน).
When should one apply for a Thai birth certificate overseas?
A person is eligible for Thai citizenship can be granted a Thai birth certificate any time. There is no time limit to do so. People have known to have applied and received their birth certificates in their 40’s!
However, please note that it can be more difficult (though not impossible) to prove your Thai citizenship without documents from the Thai parent proving such eligibility. The death, divorce, or parent absconding, or the loss of the parents Thai identity papers are all very common problems. In such cases, DNA testing back in Thailand using links to remaining relatives is the only other method of establishing one’s rights to Thai nationality, and understandably this process can be cumbersome and expensive.
As such, it is recommended to apply for a Thai birth certificate overseas as practically as possible after the child’s birth.