Premier Thai Lawyers/Immigration & Visas

Immigration & Visas

Thailand Immigration & Visas

Thailand's immigration system is layered: the right visa depends on why you are here, how long you intend to stay, and whether you will work, invest or bring family. This page sets out the main categories, the practical questions that follow, and how the pieces connect to tax residency and long-term planning.

How This Connects

A visa is rarely the whole picture. The category you choose shapes your tax-residency position, your ability to work, your family's status and, often, the property and banking steps that follow. We look at immigration alongside those connected questions rather than as a standalone transaction.

Visa Categories

The Principal Visa Categories

Each category answers a different reason for being in Thailand. The right one depends on purpose, duration, whether you will work, and whether family will join you.

Tourist Visas

Short-stay entry for tourism and casual visits, including single-entry and multiple-entry tourist visas issued abroad or visa-exempt entry for eligible nationalities.

  • Single-entry tourist visa: 60 days, extendable once for 30 days.
  • Multiple-entry tourist visa: 6 months validity, 60 days per entry.
  • Visa-exempt entry for eligible nationalities: 30 to 60 days depending on passport.

Business Visas

Non-Immigrant B visas for those entering Thailand to conduct business, attend meetings, explore investment or take up employment with a Thai company.

  • Non-B visa: 90 days, extendable to one year with work permit.
  • Supporting company documents: registration, shareholder list, audited accounts.
  • Multiple-entry variant for frequent regional travel.

Marriage Visas

Non-Immigrant O visas for those married to a Thai national, leading to renewable one-year extensions of stay based on marriage.

  • Financial evidence: 400,000 THB in bank or 40,000 THB monthly income.
  • Marriage registration and household documentation required.
  • Annual extension with reporting and address verification.

Retirement Visas

Long-stay options for those aged 50 and over, including the Non-O-A, the Non-O extension and the O-X visa for certain nationalities.

  • Financial evidence: 800,000 THB in bank or 65,000 THB monthly income, or a combination.
  • Health insurance required for O-A and certain nationalities.
  • Renewable annually with no permission to work.

Education Visas

Non-Immigrant ED visas for enrolled students at licensed institutions, including language schools, universities and vocational courses.

  • Issued for the duration of study, extendable in-country.
  • Requires acceptance letter and recognised institution.
  • Frequent reporting; work is not permitted on this visa.

Work Permits

Permission to work legally in Thailand, tied to an employer and a specific role, applied for after or alongside a Non-B visa.

  • Employer sponsorship and position-specific approval.
  • Minimum capital and Thai-to-foreign employee ratios apply.
  • Digital work permit available for LTR holders.

Re-entry Permits

Permission to leave Thailand and return without losing an existing extension of stay, essential for anyone on a long-term visa who travels.

  • Single or multiple re-entry permit options.
  • Must be obtained before departure, not on return.
  • Returning without one cancels the underlying extension.

Visa Extensions

In-country extensions of stay for those already holding a qualifying visa, filed at the local Immigration Office before the current stamp expires.

  • Filed at the Immigration Office with jurisdiction over your address.
  • Category-specific evidence: income, marriage, retirement, employment.
  • Late filing risks overstay; plan extensions before expiry.

Visa Conversions

Changing visa category while in Thailand, where permitted, to avoid leaving the country to apply at a consulate abroad.

  • Not all categories can be converted in-country.
  • Subject to Immigration Bureau approval and supporting documents.
  • Useful for moving from tourist to Non-O or Non-B in defined cases.

Permanent Residence

Indefinite residency in Thailand, granted annually in limited quota, available after three consecutive years on the same non-immigrant category.

  • Annual quota window, typically late in the year.
  • Three years on one non-immigrant visa category preceding application.
  • Significant evidence of income, employment or family ties.

Long-Term Resident (LTR) Visa

Thailand's 10-year renewable visa for wealthy global citizens, wealthy pensioners, work-from-Thailand professionals and highly skilled talent, with work rights.

  • 10-year validity with five-year reporting.
  • Digital work permit and tailored tax treatment for eligible holders.
  • Spouse and up to four dependants can be included.

FAQs

Questions We Often Hear About Visas

The practical questions clients ask before and after they arrive, answered from experience rather than from a brochure.

Speak with an adviser about your visa

Tell us why you are coming, how long you intend to stay, and whether you will work or bring family. We map the category that fits and the steps that follow.