ข้ามไปยังเนื้อหาหลัก
Thai Notary Law & Service Phuket
THAI NOTARY LAW
Phuket • Thailand

Family, Spouse & Dependent Visas

Non-O based on Thai marriage, dependents of Non-B holders, and relationship documents that need translation.

14 questions in this topic, based on published guidance from the Immigration Bureau, Department of Employment and Ministry of Foreign Affairs. All approvals remain at the discretion of the deciding officer.

Visa vs Permission to StayTourist, Visa Exemption & e-VisaWorking in Thailand: Non-B & Work PermitExtension of Stay & Change of Visa Type90-Day Report, TM30 & Re-entry PermitRetirement Visas: Non-O, O-A, O-XFamily, Spouse & Dependent VisasLong-Stay Options: DTV, LTR, SMART, Thailand PrivilegeStudent & Training Visas (Non-ED)Documents, Translation & Legalization for VisasRefusals, Overstay & Re-applyingThai Nationals Applying Abroad
Q1.Can a Thai visa be renewed inside Thailand?

Thailand does not renew the visa sticker itself. What you file domestically is an application for extension of stay on form TM.7, assessed against your reason for staying such as employment, marriage, or retirement. If approved you receive a new permitted-until stamp; the original visa issued abroad is not amended.

Q2.Which documents are normally required for an extension?

The core set is form TM.7, photographs in the required size, copies of every stamped passport page, accommodation evidence plus the landlord's TM30 notification, and supporting documents for your reason to stay such as employer papers, marriage documents, or financial evidence. Individual offices may request more based on your circumstances.

Q3.Can my spouse stay with me on a retirement visa?

A spouse can generally apply to stay as a dependent, presenting a marriage certificate legalized and translated as prescribed, together with the principal applicant's financial evidence. The period granted depends on the officer's discretion and the principal's category, so prepare relationship documents in full from the beginning.

Q4.How does a foreigner married to a Thai national extend their stay?

You need a Non-Immigrant O visa based on marriage, then file TM.7 with the marriage certificate, the Thai spouse's house registration and ID card, photographs showing cohabitation, a map to the residence, and financial evidence meeting the threshold. Officers may inspect the residence before approving the application.

Q5.What financial options apply to a marriage-based extension?

General practice allows either a Thai bank deposit at the prescribed amount, seasoned for the required period before filing, or documented monthly income at the prescribed level supported by an embassy income letter or other accepted evidence. The figures follow Immigration Bureau announcements and can change, so verify before arranging funds.

Q6.What documents does a child born abroad need to live in Thailand?

You need the birth certificate issued by the country of birth, legalized through that country's correct chain, then translated into Thai and the translation certified by the Legalization Division, Department of Consular Affairs. Only then can it support a dependent visa application or civil-registration steps in Thailand.

Q7.Can a dependent of a Non-B holder work?

Dependent status does not include work rights. To work, an employer must apply for a work permit and the stay category must be adjusted accordingly. Working without a permit affects both the worker and the employer and can influence the whole family's next extension assessment, so arrange permissions before starting any paid work.

Q8.What is needed to marry a foreigner in Thailand?

The foreign partner obtains an affirmation of freedom to marry or single-status certificate from their embassy in Thailand, has it translated into Thai with the translation certified by the Department of Consular Affairs, and then registers the marriage at a district office. Some countries' documents have a limited validity, so sequence the steps closely.

Q9.Where are Thai documents legalized for foreign visa applications?

Thai civil documents such as birth certificates, house registrations, and marriage certificates should first be re-issued as certified copies by the registrar, then translated into English or the destination language, then legalized by the Legalization Division of the Department of Consular Affairs, and finally legalized at the destination country's embassy where required.

Q10.Who qualifies for a SMART Visa and how does it differ from a Non-B?

SMART Visa targets qualified experts, investors, executives and startup founders in Thailand's targeted industries, endorsed through BOI after a qualification review. Unlike the Non-B it needs no separate work permit, requires only annual reporting, and extends residence rights to spouse and children. A Non-B requires a Thai employer to file company documents and a work permit with the Department of Employment each time.

Q11.What do dependants of LTR or SMART holders receive?

Spouses and children under the stated age limit receive the same visa category as the principal, with annual reporting and fast-track access. Relationship documents — marriage certificate and birth certificates — must be translated into English and legalised by the consular authority of the issuing country or carry an Apostille.

Q12.What translation standard does a UK Standard Visitor visa require?

UKVI requires each translation to confirm it is an accurate translation of the original, show the date, the translator's full name, signature and contact details. Thai consular legalisation is not required, but the original and the translation must be submitted together. Common documents are the house registration, marriage certificate, birth certificate, employment letter and bank statements.

Q13.Do Thai official documents need consular legalisation for a foreign visa?

It depends on the destination. Most tourist visas need only a certified English translation. Spouse visas, permanent residence, marriage registration abroad and any use before foreign courts or registries usually require legalisation by the Legalization Division of the Department of Consular Affairs and then the destination embassy, or an Apostille if that country is in the Hague Convention.

Q14.Which Thai documents most often need translation for visa filings?

House registration (Tabien Baan), Thai ID card, marriage or divorce certificate, birth certificate, name-change certificate, land title deeds, company affidavits and police clearance certificates. Keeping a certified English set on file saves repeated cost, but note that some missions require translations issued within the last 3-6 months.

Talk to our visa & documents team

Mon–Sat 9:00–18:00 (ICT)

Contact our team →

Official sources referenced

Government fees and processing times on this page were last verified in July 2026 by our Notarial Services Attorneys registered with the Lawyers Council of Thailand. Figures follow published agency schedules, may change without notice, and actual turnaround depends on each authority's queue. Please reconfirm with the issuing authority before you file.