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Thai Spouse Extension (Non-Immigrant O)
What do I need for a Thai marriage visa extension?
A spouse of a Thai national may apply to Immigration for a marriage-based extension using recognised marriage records, genuine relationship and residence evidence, and financial proof under the current rules. The office may interview the couple, visit the home or request more evidence. Verify the current checklist before filing.
This page covers the extension of stay applied for inside Thailand. It is separate from obtaining an entry visa, registering the marriage and applying for a work permit.
Quick Answer
First identify whether you need an entry visa, a change of visa type or an annual extension. Financial thresholds are eligibility rules, not service prices; confirm the current amount, evidence format and timing with the Immigration office responsible for your registered address.
FAQ
- Is a Non-Immigrant O visa the same as a marriage extension?
- No. A visa is used for entry, while the annual marriage-based extension is permission granted inside Thailand by Immigration. The evidence and decision-maker differ, so confirm which process you actually need.
- What financial evidence is commonly requested?
- The commonly published routes are a qualifying balance in the applicant's Thai account or qualifying monthly income. The amount, seasoning period and acceptable proof must be checked against the current order and the office handling the application.
- Can a marriage-based holder work in Thailand?
- Marriage-based permission allows stay, not work. Employment requires a separate work permit and compliance by the employer.
- Does a marriage registered abroad count?
- It may be used after the required authentication, Thai translation and, where requested, recording of family status in Thailand. Confirm the chain with the district and immigration offices before preparing it.
- Is approval guaranteed if the checklist is complete?
- No. A complete file reduces avoidable documentary problems, but the authority alone decides the application and may request an interview, home visit or additional evidence.
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Visa, entry and extension are three different decisions
A Non-Immigrant O visa issued for family reasons allows entry under its terms. A marriage-based extension is a separate application made to the Immigration office responsible for the couple's Thai residence. This page concerns that domestic extension, not registering a marriage and not applying for a spouse visa to another country.
The extension normally depends on a legally recognised marriage, a continuing relationship, a consistent residential record and financial evidence in a form accepted by the responsible office. Published financial thresholds are eligibility rules rather than service prices. Because orders and local checklists change, confirm the current amount, seasoning period and evidence format before moving funds or obtaining bank letters.
Evidence officers read together
| Evidence group | Typical record | Consistency check |
|---|---|---|
| Marriage | Thai marriage records or authenticated foreign record | Names, dates and Thai family-status registration where requested |
| Relationship | Current photographs, shared address and interview answers | Evidence should describe the couple's real living arrangement |
| Finance | Thai bank records or accepted income evidence | Account ownership, source, balance history and document date |
| Residence | TM.30 receipt, lease or title document and location map | The same usable address across every form |
| Immigration history | Passport, latest entry and current permission | A lawful, unbroken status on the filing date |
A practical preparation sequence
- Identify the correct application: Confirm whether you need an initial Non-O visa, a change of visa type, or an annual marriage-based extension.
- Confirm jurisdiction: Check the office responsible for the registered residence and obtain its current checklist.
- Plan financial evidence: Choose an available route early enough to satisfy the required account history or income proof.
- Align civil and address records: Resolve name differences, foreign-document authentication and any TM.30 mismatch before filing.
- File as a couple: Prepare for both spouses to attend, answer factual questions and provide additional evidence if requested.
- Protect the granted stay: Record the next reporting and expiry dates, and check re-entry requirements before any departure.
What happens during consideration
Many offices first place the application under consideration rather than granting the full period on filing day. A home visit, telephone check or request for further evidence may follow. The couple should keep contact details active and avoid travel without written guidance from the office while the case is pending.
We organise translations and the evidence trail, but we do not promise approval or speak for Immigration. The final decision, any interview and any request for additional documents remain with the authority.
Common mistakes and how we avoid them
More questions we are asked
- Must the Thai spouse attend?
- Immigration commonly expects both spouses at filing and may ask both to confirm the relationship. Check the local appointment and attendance rules.
- Can foreign marriage records be used?
- Often yes after the required authentication and Thai translation, with family-status recording where requested by the district or immigration office.
- Does the extension allow employment?
- No. A work permit is a separate process even when marriage supports the immigration status.
- Does a home visit happen in every case?
- Not in every case. It depends on the office and file, but applicants should be prepared to show the genuine shared residence.
- What must be done after approval?
- Track the expiry date, 90-day reporting cycle, TM.30 obligations after relevant moves or returns, and re-entry requirements before travel.
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Official sources — visa & work permit
The information on this page follows the official sources below. Always check the latest version before you file.
- Immigration Bureau — visas, 90-day reporting, TM.30— Immigration Bureau
- Thai e-Visa Official Portal— MFA Thailand
- Thailand Digital Arrival Card (TDAC)— Immigration Bureau
- Department of Employment — work permits for foreigners— Department of Employment
- Board of Investment (BOI) / LTR Visa— Thailand Board of Investment
- Department of Consular Affairs — document legalisation— Ministry of Foreign Affairs
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Frequently asked questions
- How does a foreigner register a marriage in Thailand?
- The foreign partner first obtains an affidavit of freedom to marry from their embassy in Thailand, has it translated into Thai and legalized by the Department of Consular Affairs, and then both parties register the marriage at any district office (amphoe) with passports and two witnesses. Since the Marriage Equality Act took effect on 23 January 2025, same-sex couples register on exactly the same basis.
- Do we need an interpreter at the district office?
- Yes in practice — most district offices require that a foreign party who does not read Thai be assisted by an interpreter, and many request that the interpreter present identification and sign the register. Some offices also expect a prenuptial agreement, if any, to be presented before registration, because a prenuptial agreement in Thailand is only valid when registered together with the marriage.
- Is a Thai marriage recognized in my home country?
- A marriage registered at a Thai district office is generally valid worldwide, but recognition procedures differ: many countries want the Thai marriage certificate and the Kor Ror 2 extract translated, legalized by the MFA and certified by their embassy before it is entered in their civil register. Some countries additionally require registration with their consulate within a set period.
- How is a prenuptial agreement made enforceable in Thailand?
- Under the Civil and Commercial Code a prenuptial agreement must be in writing, signed by both spouses and two witnesses, and registered with the marriage at the district office on the day of registration — an agreement signed afterwards is void as to property arrangements. It also cannot contradict public order or the rules on parental duties, so the drafting must be Thailand-specific rather than a translated foreign template.