Marrying a Thai national can open a path to live in Thailand long term through the Non-Immigrant O visa, often called the marriage visa. The route is well established and reasonably predictable, but it rests on two pillars: showing a genuine relationship and meeting a financial threshold. This guide explains the ideas behind those requirements and the practical rhythm of applying, reporting and renewing.
What the marriage visa is
The marriage visa is a category of Non-Immigrant O visa granted to a foreign spouse of a Thai citizen. It is not permanent residence and it is not citizenship. Instead, it is a renewable permission to stay that you extend year by year while the marriage continues and you keep meeting the conditions.
People usually arrive on a short-term entry or a 90-day Non-Immigrant O visa obtained abroad, then apply inside Thailand at an immigration office for a one-year extension of stay based on marriage. That one-year extension is the part most expats think of as "the marriage visa," and it is what you renew annually. The precise steps and paperwork can vary by office and change over time, so treat the description below as a general picture rather than a fixed checklist.
The relationship requirement
At its heart, this visa asks you to show that the marriage is real and ongoing, not arranged purely for immigration. Officers look for evidence that you and your Thai spouse genuinely live as a couple.
In practice that often means presenting documents and proof such as:
- A legally registered marriage, with the Thai marriage certificate and household registration documents.
- Photographs of the two of you together, commonly inside and outside your home.
- A map or sketch showing where you live, and sometimes proof of your address.
- Your Thai spouse attending the interview in person.
Immigration officers may also conduct a home visit to confirm that you live together. This is routine and nothing to fear if your situation is genuine, but it is worth being prepared for. Requirements and the exact paperwork can differ between provinces and can change over time, so confirm the current list with your local office or a qualified lawyer before you apply.
The financial requirement
You must meet one of two thresholds — and they can be combined:
- Savings: 400,000 baht in a Thai bank account in your own name; or
- Income: 40,000 baht a month, evidenced by an embassy letter or transfers into a Thai account; or
- a combination — for example 200,000 baht in the bank plus 20,000 baht a month.
The money must already have been sitting in the account: commonly 2 months before a first Non-O application and 3 months before each annual extension — and it must be maintained afterwards, not withdrawn the day after approval. Moving the funds in late is the most common avoidable refusal.
On the income route, be aware that practice can be stricter than the written rule: some offices expect materially more than the 40,000 baht minimum before they are comfortable. The account must be in your own name — a spouse's or joint account does not satisfy the savings route.
Figures last verified July 2026 against the sources listed at the end of this guide. Thresholds and how offices apply them can change. Confirm your own position with the official source or a local lawyer before you commit.
The application and renewal process
The typical journey looks like this:
- Enter Thailand on a suitable visa, ideally a Non-Immigrant O visa issued by a Thai embassy abroad, which commonly gives an initial 90-day stay.
- Before that period ends, apply at your local immigration office for a one-year extension of stay based on marriage, submitting your relationship and financial evidence.
- Attend any interview and, where required, the home visit.
- Receive the one-year extension, after which you renew it each year by repeating the financial and relationship checks.
If you plan to leave and re-enter Thailand during the year, you generally need a re-entry permit; without one, your extension can be cancelled the moment you depart. Many applicants are also placed under an initial scrutiny period before the full year is confirmed, so build in extra time and avoid leaving things to the last week. Exact timelines and discretion sit with immigration, so confirm the current procedure with your office or a lawyer.
90-day reporting and staying compliant
Holding the visa carries an ongoing duty called 90-day reporting. Roughly every 90 days you must notify immigration of your current address. This can usually be done in person, by post, through an agent or online, though the online system is not always reliable.
Missing a report or overstaying your permitted date can lead to fines and complications at renewal, so treat the dates as firm. Your Thai spouse and your landlord may also have address-notification obligations, and keeping your TM30 address records up to date often smooths later applications. Rules, fees and the available reporting channels change periodically, so check the current procedure each year and confirm anything you are unsure about with a qualified adviser.
A few words before you start
The marriage visa is one of the more stable long-term routes in Thailand, but the details — financial thresholds, document lists, seasoning periods and provincial practice — shift over time and vary by office. This guide is general information only and not legal advice for your situation. Before you commit money to a bank account or book travel around a deadline, it is worth speaking to a qualified Thai immigration lawyer or a reputable local adviser who can confirm the current rules for your province and help you prepare a clean, complete application.
Frequently asked questions
Does my Thai spouse have to be involved in the application?
Yes. This visa rests on showing a genuine, ongoing marriage, so your Thai spouse usually needs to attend the immigration interview in person, and you will present joint evidence such as your marriage certificate, household registration and photographs together. Immigration may also carry out a routine home visit to confirm you live together, which is nothing to worry about if your situation is genuine.
My embassy stopped issuing income-confirmation letters. What can I do?
A number of embassies have stopped issuing these letters, which has pushed many applicants toward the savings route of keeping a set amount in a Thai bank account instead. Some people combine savings and income transfers to reach the required level. Because banks and immigration offices interpret the rules differently, confirm the exact amount, seasoning period and acceptable proof before moving any money.
Can I travel abroad during the year without losing my marriage visa?
Only if you obtain a re-entry permit before you leave. Without one, your one-year extension of stay can be cancelled the moment you depart Thailand, forcing you to start over. If you know you will travel, arrange the re-entry permit in advance and build in extra time rather than leaving it to the last week.
Do the requirements vary depending on where I live in Thailand?
Yes. The exact documents, financial thresholds and practice can differ between provinces and immigration offices, and they change over time. The description you read online is a general picture, not a fixed checklist, so confirm the current list with your local immigration office or a qualified Thai immigration lawyer before you apply.
Official sources
Rules, fees and thresholds change. Confirm anything in this guide with the official source before you act.
- Immigration Bureauimmigration authority
- The Revenue Departmenttax authority