The Non-Immigrant Visa “B” (Non-B Visa) is essential for foreign nationals wishing to work, conduct business, or invest in Thailand. Below, we break down everything you need to know, from visa issuance and application requirements to special provisions and additional services.

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1. Visa Issuance

1.1 General Information

Foreigners intending to work, conduct business, or engage in investment activities in Thailand must apply for a Non-B Visa at a Royal Thai Embassy or Consulate. There are multiple categories to suit different needs:

• Category B: Standard business and work visa.
• Category B-A: Business-approved visa requiring pre-approval by Thai authorities.
• Category IB: Visa for investment-related activities under the Board of Investment (BOI).

Holders of a Non-B Visa intending to work must obtain a work permit before starting employment. Visa fees are as follows:

• Single Entry: 2,000 THB (valid for 3 months).
• Multiple Entries: 5,000 THB (valid for 1 year).

1.2 Country-Specific Application Rules

Nationals of certain countries must apply at a designated embassy or consulate in their home country. For more information, consult the Thai Ministry of Foreign Affairs website.

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2. Application Requirements

2.1 Non-Immigrant Visa “B” (Business Visa)

For Foreign Employees

Applicants wishing to work in Thailand need:

• A passport valid for at least six months.
• Completed visa application form.
• Recent passport-sized photo (4×6 cm).
• Proof of adequate finances (20,000 THB for individuals or 40,000 THB for families).
• A Letter of Approval from the Ministry of Labour, issued via Form WP3 submitted by the employer.
• If previously employed in Thailand: A copy of the prior work permit and tax documents (e.g., Por Ngor Dor 91).
• Corporate documents of the hiring company:
  • Business registration and license.
  • List of shareholders.
  • Company profile and details of operations.
  • Financial records (e.g., tax filings).
  • Location map of the company.
  • For tourism businesses, proof of foreign visitors.

Important: A Non-B Visa does not automatically authorize work; a separate work permit is required.

For Business Owners or Investors

Applicants conducting business must provide:

• Passport with six months validity.
• Completed application form and recent photo (4×6 cm).
• Evidence of financial means (as above).
• A letter from the applicant’s company detailing their position, employment length, and purpose of the visit.
• Letters of invitation and business correspondence with Thai companies.
• Corporate documents of associated Thai businesses (similar to those for employees).

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2.2 Non-Immigrant Visa “B-A” (Business Approved Visa)

This visa requires pre-approval from Thailand’s Immigration Bureau. A Thai company can apply on behalf of the applicant. Once approved, the Royal Thai Embassy or Consulate will issue the visa, valid for up to 1 year.

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2.3 Non-Immigrant Visa “IB” (Investment and Business Visa)

For foreign employees working on BOI-approved projects, the investment must benefit Thailand in areas such as export promotion, employment generation, use of local materials, or technology transfer.

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2.4 Non-Immigrant Visa “B” (Teaching)

Foreigners wishing to teach below the university level must submit additional documents:

• Letter of acceptance from a Thai educational institution.
• Approval letters from education authorities (e.g., Office of Private Education Commission).
• Copies of diplomas and teaching certificates.
• Police clearance certificate (optional but recommended).

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3. Additional Notes

3.1 Work Permits

Upon arrival, applicants or their representatives must apply for a work permit at the Ministry of Labour. Work permits require tax compliance and employer documentation.

3.2 Family Members

Dependents (spouse, parents, and unmarried children under 20) can apply for a Non-Immigrant Visa “O”, valid for up to one year.

3.3 Visa Type Conversion

Tourist or Transit Visa holders wishing to work may apply to change their visa type at the Immigration Bureau in Bangkok. Approval is at the discretion of immigration officers.

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4. One-Stop Service Centre for Visas and Work Permits

The One-Stop Service Centre, located at Chamchuri Square, Bangkok, streamlines visa extensions and work permits for eligible applicants, including:

• BOI-promoted investors and experts.
• Executives of companies with over 30 million THB in assets.
• IT specialists, researchers, and urgent workers (up to 15 days).

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Final Thoughts

The Non-B Visa is crucial for foreign nationals looking to work or conduct business in Thailand. While the process can seem daunting, preparation and compliance with requirements ensure a smooth experience. For professional assistance with applications or documentation, contact us for advise regarding Thai Visa’s and immigration Thailand.

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Disclaimer: Visa rules and requirements may change. Always verify with the nearest Thai embassy or consulate before applying.