Thailand Work Permit for Business Owners

Owning a Thai company does not give you the right to work in it. Working legally in Thailand needs two separate things stacked correctly: permission to stay in the country under the right visa category, and a work permit tied to one employer, one position, and defined duties. Founders trip on the sequencing: trying to work before both pieces are in place, or assuming ownership alone is enough.

Two systems, not one

Permission to stay is an Immigration Bureau matter: a visa category, and later an extension of stay, that lets you legally remain in Thailand. Permission to work is a Department of Employment matter: a work permit that names your employer, your position, and the scope of duties you are authorised to perform. Neither substitutes for the other. A valid long-stay visa with no work permit does not let you work. A work permit application normally cannot proceed without the applicant already holding, or having applied for, the visa category that supports employment. The two processes run in sequence, coordinated between the two authorities, and a founder who applies for one without lining up the other is the most common cause of delay.

What the company must have in place first

Before the Department of Employment will support a foreign employee’s work permit (including a founder employing themselves through their own company), the sponsoring company typically needs to demonstrate several things are already in order:

• Registered and paid-up capital at a level the Department of Employment considers adequate to support a foreign hire, assessed against the company’s structure rather than a single fixed figure that applies to every case (see the company setup guide for how registered capital gets sized in the first place).
• A Thai staff ratio. Standard companies are expected to employ a number of Thai staff relative to each foreign work-permit holder; the exact ratio and how strictly it is applied depend on the route (standard company, BOI-promoted, LTR-linked, and others each treat this differently), so treat any specific ratio you read elsewhere as needing confirmation for your case, not as a fixed universal rule.
• Filings that are actually current. A company behind on its tax or social security filings is a red flag at renewal, and can stall a first application too.
• Real premises. An address that can support a site visit or documentation check, not a nominal registered address with no activity behind it.

A company designed purely around minimising registered capital, with no Thai employees and no real premises, is very often a company that cannot support its own founder’s work permit later. This belongs on the list of things to plan for during company setup, not after the company already exists.

What counts as “work”: it is broader than people expect

Thai law’s definition of work is not limited to paid employment; it covers exerting effort or using knowledge or skill, whether or not payment changes hands and whether the activity happens in an office or elsewhere. In practice this has been interpreted to cover things founders assume are harmless: sitting in on a business meeting, managing staff remotely from inside Thailand for a Thailand-based operation, or doing hands-on tasks at your own premises without a permit. Two situations are worth naming plainly because they are the ones founders get wrong most often:

Working on a tourist entry. Entering Thailand on a tourist visa or visa-exempt entry and then doing anything that qualifies as work (including “just for a few days while the paperwork is processed”) is unauthorised work. It is not a grey area and it is not low-risk; it is the single most common way a founder ends up in genuine legal trouble before the business has even started.

Working outside your permit’s scope. A work permit authorises a specific position and specific duties at a specific employer. Taking on a different role, working for a second company without amending or adding to the permit, or performing duties well outside what the permit describes, is treated as unauthorised work even though the person holds a valid permit for something else.

The process, in outline

1. Line up the right visa or change of status. This usually means a Non-Immigrant category that supports employment, obtained abroad or, in some cases, through an in-country change of status where that is permitted.
2. Assemble the company-side documents. Corporate registration papers, shareholder and director records, evidence of the registered capital and Thai staff ratio, tax and social security filing history, and evidence of the registered premises.
3. Submit the work permit application to the Department of Employment, naming the specific position and duties, once the supporting visa status is in place.
4. Coordinate the extension of stay with Immigration, since the visa extension and the work permit are assessed against consistent, matching information.
5. Start work only once both pieces are confirmed: not on the strength of a submitted application alone.
6. Renew on a cycle tied to the company. Renewal is not just a personal paperwork exercise: it depends on the company’s filings staying current, its staff ratio still being met, and its registered capital still supporting the position, so a company that has drifted out of compliance can stall its founder’s own renewal.

Every one of these steps has documentary requirements, fees, and processing timeframes that vary by nationality, by province, and by which route (standard, BOI, LTR, SMART, and others) applies: none of that is stated here as a fixed fact, because it changes and is applied differently office to office. The Department of Employment, the Immigration Bureau, and a licensed Thai adviser are the authorities to confirm current requirements against your specific case.

When you leave the company, or the company falls behind

A work permit is tied to the employer named on it. Leaving the company (resigning as director, selling your stake, or the company ceasing to trade) ends the basis for that permit, and the permit needs to be formally cancelled or transferred, not simply left to lapse quietly. If the company falls behind on its tax filings, social security contributions, or annual audit, that compliance failure can surface at the founder’s own renewal, even where the individual has done nothing wrong personally. Keeping the company’s compliance current is, in a very direct sense, part of keeping your own permission to work current.

The alternatives founders actually use

BOI-promoted companies. A company promoted by the Board of Investment (see the Foreign Business Act and BOI guide for what promotion involves) typically sits on a faster, more founder-friendly track for work permits and visas, often outside the standard staff-ratio and capital tests that apply to an ordinary company. This is one of the practical reasons founders pursue BOI promotion even when the ownership relief itself is not the main draw.

The SMART Visa. A visa category for qualifying investors, executives, specific experts, and startup founders in targeted industries, designed to bundle visa and work-permission questions into one faster process for people who meet its criteria. It suits a narrower group than the standard route and has its own qualifying conditions, checked against the applicant’s role and the company’s status, not a general substitute for a work permit.

The DTV for remote work. The Destination Thailand Visa (DTV) allows long-stay presence for people doing remote work for foreign employers or clients, among other qualifying activities. Draw the line clearly: a DTV is not a route to working for a Thai company or serving Thai clients from inside Thailand. Using a DTV that way is the same unauthorised-work problem described above, just with a longer-stay visa attached to it instead of a tourist entry.

Employer-of-record arrangements. A properly licensed Thai employer-of-record can employ a founder on paper as staff of a Thai entity, handling payroll, social security, and the work-permit sponsorship, while the founder continues to direct the underlying business. This can be a legitimate route to legal working status while a founder’s own company is still being built up to support its own permits: the operative word is “properly licensed”; an informal arrangement that exists only to paper over unauthorised work carries the same risks as any other workaround.

Compliance habits that keep a founder out of trouble

• Never work (including “quick” tasks) on a tourist entry or before a work permit is confirmed.
• Keep the company’s tax, social security, and audit filings current year-round, not just ahead of renewal.
• Renew the work permit and the extension of stay with time to spare, rather than at the last valid day.
• If your role changes (new duties, a second position, a different company), update the permit rather than assuming it still covers you.
• Treat a DTV, tourist entry, or any non-work visa as exactly what it is: not a basis for working for a Thai company or Thai clients.
• Re-check current capital, ratio, and fee requirements with a licensed adviser at every renewal, since they are not fixed and are applied differently by office and route.

What to keep on file

• Copies of every visa, extension, and work permit issued, with expiry dates flagged well in advance
• The company’s current tax ID certificate, VAT registration if applicable, and social security registration
• Evidence of the registered address and, where relevant, the Thai staff on payroll supporting your ratio
• A record of your actual job title and duties as stated on the permit, so you can check any new task against it
• Contact details for the licensed Thai adviser who handles your renewals

Disclaimer

This article is general information, not legal or immigration advice. Work permit fees, capital thresholds, staff ratios, and salary requirements are not stated here as current facts because they change and are applied differently by nationality, province, and route. Confirm current requirements with the Department of Employment, the Immigration Bureau, or a licensed Thai adviser before relying on any of them.

Common questions

Can I work in my own company just because I’m a shareholder?

No. Being a shareholder or director does not authorise you to work. You need a valid visa status that supports employment and a separate work permit naming your position and duties at that company, exactly as described above.

What’s the difference between a Non-B visa and a work permit?

The Non-Immigrant B visa (and its extension of stay) is the Immigration Bureau’s permission to remain in Thailand for a work-related purpose. The work permit is the Department of Employment’s separate permission to actually perform a defined job. You generally need the visa status in place to apply for the permit, and you need both to legally work.

Does BOI promotion make getting a work permit easier?

Often, yes: BOI-promoted companies commonly sit on a faster track with different tests than a standard company, which is one practical reason founders seek promotion. The specific treatment depends on the promoted activity and current BOI rules, so confirm the details for your case with a licensed adviser rather than assuming a fixed shortcut.

Can I use a DTV to run my Thai business?

No. The DTV supports remote work for foreign employers or clients; it is not a route to working for a Thai company or serving Thai clients from inside Thailand. Doing that on a DTV is unauthorised work, with the same risks as working on a tourist entry.

What happens to my work permit if I sell my company or step down?

The permit is tied to that specific employer and role, so leaving ends its basis. It needs to be formally cancelled or transferred rather than left to lapse; working afterward without a new valid permit is unauthorised work even if you held a legitimate one before.

Is an employer-of-record arrangement a legitimate way to get a work permit?

It can be, provided the employer-of-record is a properly licensed Thai entity actually handling payroll, social security, and sponsorship, not an informal arrangement designed only to create paper cover for otherwise unauthorised work. Verify the provider’s standing with a licensed Thai adviser before relying on it.