The marriage visa (Non-O) for spouses of Thai nationals: money, documents and the annual extension

The marriage visa is one of the steadiest long-stay routes for a foreigner who has built a life in Thailand with a Thai partner — and one where small details, from the seasoning of a bank deposit to a re-entry permit, decide whether the year runs smoothly. This note sets out what the route is, the current financial test, the documents, how the annual extension works, and — because buyers ask — how it does and does not connect to property your spouse may own.

Being married to a Thai national is necessary but not sufficient: the permission is the Immigration Bureau's to grant, against its own criteria. This is general information, not immigration advice, and immigration rules and figures change often — confirm the current requirements with us before you rely on anything here.

What is the marriage-based Non-O visa, and who grants it?

The marriage-based Non-Immigrant O visa is a long-stay permission for a foreigner married to a Thai national, granted at the discretion of the Thai Immigration Bureau — not automatically by the marriage itself. In practice you first hold a 90-day Non-Immigrant O visa issued on the basis of marriage (applied for at a Thai embassy abroad, or converted inside Thailand where you are eligible), and then apply from within Thailand for a one-year extension of stay based on marriage. It is that extension, renewed annually, that lets you live here year to year. Since the Marriage Equality Act took effect on 23 January 2025, a same-sex spouse in a marriage registered in Thailand is eligible on the same basis as an opposite-sex spouse.

Two things follow. The grant is the Immigration Bureau's decision, made against its own criteria; and being married is necessary but not sufficient — you also have to meet a financial test and evidence a genuine, subsisting marriage.

What are the financial requirements?

The marriage extension rests on a financial test at the figures the Immigration Bureau applies at the date checked (25 July 2026): a Thai bank deposit of THB 400,000, or a monthly income of at least THB 40,000, or a combination of the two. These thresholds are lower than the retirement route's THB 800,000 deposit or THB 65,000 monthly income — the marriage route is a distinct, lower financial test.

The deposit route carries a seasoning rule: the THB 400,000 must sit in a Thai bank account in the foreign applicant's own name for a period before the application and be maintained after it — commonly two months before the first extension and three months before each renewal, though offices apply this strictly and the detail can vary. The income route is evidenced as Immigration requires, often through an embassy income letter or transfer records. Because the exact evidence and seasoning periods are set by Immigration and applied office by office, confirm the current requirement before you rely on it.

What documents does the marriage extension need?

The application turns on proving both the marriage and the money. You will typically need the Thai marriage registration (Kor Ror 2) and certificate, your spouse's Thai identity card and house registration (tabien baan), your passport, the extension application (form TM.7) with a photograph, and the financial evidence — an updated bank passbook with a letter from the bank, or income evidence.

Immigration also commonly asks for photographs of the couple together at the registered home, a map to the residence, and sometimes a home visit or a witness statement, precisely because it is testing that the marriage is genuine. Your address is notified separately under TM.30. Document sets and formatting vary between Immigration offices, so treat any checklist as a starting point and confirm the current list for your office.

How does the annual extension actually work?

You apply for the extension inside Thailand, in the final 30 days of your current permission to stay. Immigration commonly grants a short period "under consideration" and then the one-year extension once satisfied.

Three obligations run through that year and are easy to overlook: 90-day reporting of your address (form TM.47) for each continuous 90 days you remain in the country; a re-entry permit obtained before you leave Thailand, without which the extension is cancelled the moment you exit; and TM.30 notification of your address by the property's owner or possessor. A government fee applies to the one-year extension and to a re-entry permit.

We prepare and file the application, the bank or income evidence and the relationship evidence, and check the seasoning of funds — but the grant is Immigration's, we do not guarantee it, and we will not evidence a marriage that is not genuine.

Can your Thai spouse's property purchase help — or hurt — the visa?

Neither — the marriage visa and any property your Thai spouse buys are separate matters, and it is important not to conflate them. The extension rests on the marriage and the financial test above; it does not count property, and owning a home does not change the thresholds. Equally, buying a condominium — even in your own name — does not give you a visa or a right to stay: ownership and immigration are separate systems, as we explain in does buying a condominium give the right to live in Thailand?.

Where the two touch is land. A foreigner cannot own land in Thailand, but a Thai spouse can. When a Thai person married to a foreigner buys land, the Land Department requires the couple to sign a joint declaration that the funds are the Thai spouse's own personal property (sin suan tua) — which means the foreign spouse formally acknowledges no interest in the land. That is a significant step, with consequences on divorce and on succession, and it is entirely separate from your visa.

Where a foreign spouse wants lawful protection around a home they helped pay for, that protection is built with a registered lease, a usufruct or a superficies in their favour — never by trying to claim the land itself. We set out the route on the Thai-spouse ownership route, and the annual extension itself on the retirement and marriage extensions page. A condominium is different again: a foreigner may own a unit freehold within the building's 49% foreign quota, in their own name — but that ownership, like the land, confers no visa.

What should you not assume?

Do not assume the marriage itself keeps you in Thailand — the extension does, and only while its conditions are met. Do not assume the deposit can be moved freely — the seasoning rule means it must stay in place before and after. Do not assume a property purchase shortens or replaces the visa — it does neither. And do not assume last year's approval settles next year's — each renewal is assessed afresh, and thresholds, fees and procedures change.

This article is general information, not advice on your particular situation; a matter is taken forward only under a separate engagement. In case of any discrepancy between language versions, the English version prevails.

Sources

• Immigration Bureau — extension of stay based on marriage to a Thai national (Royal Thai Police Order No. 327/2557 (2014)) (checked 2026-07-25)
• Ministry of Foreign Affairs — Thai e-Visa, Non-Immigrant O visa on the basis of marriage to a Thai national (checked 2026-07-25)
• Civil and Commercial Code, as amended by the Marriage Equality Act (in force 23 January 2025) (checked 2026-07-29)
• Land Code B.E. 2497 (1954); Land Department (checked 2026-07-25)