SIAC Consulting Co. Ltd

Business Visa (Non-B)

Thailand Non-Immigrant “B” Visa (Business & Work) – 2025 Guide

The Thailand Non-Immigrant “B” Visa is required for foreigners aiming to work, invest, or run a business in Thailand. Here’s a concise overview of types, documents, application process, and key rules.

Overview

This visa, issued by Royal Thai Embassies or Consulates, is necessary before starting work or setting up a company in Thailand.

Visa Types

  • 90-Day Single Entry: Stay up to 90 days; leaving cancels the visa unless you have a re-entry permit.

  • 1-Year Multiple Entry: Stay 90 days per visit with unlimited re-entries for one year.

Fees

  • 2,000 THB — Single Entry (3 months)

  • 5,000 THB — Multiple Entry (1 year)

Required Documents

1. General Requirements:

  • Passport (valid ≥ 6 months)

  • Visa application form

  • Recent 4×6 cm photo

  • Proof of funds: 20,000 THB (individual) / 40,000 THB (family)

  • Travel itinerary

  • Visa fee payment

2. Additional Documents by Purpose:

A. Employment

  • Approval letter (Form WP3) from Ministry of Labour

  • Work permit copy (if previously employed)

  • Employer’s documents (registration, financials, etc.)

  • Police clearance (if required)

B. Business/Investment

  • Letter from home company

  • Invitation from Thai partner

  • Proof of correspondence and financials

  • Thai partner’s documents (registration, tax forms, etc.)

C. Teaching

  • Employment letter from a school

  • Approval from education authority

  • Diplomas/certificates and resume

  • School registration and shareholder list

  • Police clearance (if required)

Application Process

  1. Prepare documents and notarize non-Thai/English files.

  2. Apply at a Thai Embassy/Consulate.

  3. Pay fee — 2,000 THB (single) or 5,000 THB (multiple).

  4. Wait 5–10 business days for approval.

  5. Enter Thailand and apply for a work permit.

After Arrival

  • Work Permit: Apply at the Department of Employment with visa and company documents.

  • Visa Extension: Apply for a 1-year extension before the 90-day limit.

  • Family Members: Spouse and unmarried children under 20 can apply for a Non-Immigrant “O” Visa.

One-Stop Service Centre (Bangkok)

Located at Chamchuri Square, offers extensions and work permits for qualified companies and investors.

FAQs

  • Processing time: 5–10 business days.

  • Start working immediately? No, a work permit is needed.

  • Apply from Thailand? Usually abroad, but some conversions are possible.

  • Path to Permanent Residency? Yes, after 3 consecutive years on a B Visa.

Quick Summary

Visa Type

Duration

Entry

Work Permit

Notes

90-Day B

90 days

Single

Required

Pre-entry application

1-Year B

1 year

Multiple

Required

Exit every 90 days

Final Tip

To navigate the strict paperwork for working or starting a business in Thailand, consider hiring a visa consultant or Thai law firm to ensure compliance and avoid rejections.

Siac Consulting Experts

Specializes in Thai company formation for foreign entrepreneurs, with expertise in BOI registration, and ongoing corporate compliance.

Stay up-to-date

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© 2025 Siac Consulting Co. Ltd

Business Visa (Non-B)

Thailand Non-Immigrant “B” Visa (Business & Work) – 2025 Guide

The Thailand Non-Immigrant “B” Visa is required for foreigners aiming to work, invest, or run a business in Thailand. Here’s a concise overview of types, documents, application process, and key rules.

Overview

This visa, issued by Royal Thai Embassies or Consulates, is necessary before starting work or setting up a company in Thailand.

Visa Types

  • 90-Day Single Entry: Stay up to 90 days; leaving cancels the visa unless you have a re-entry permit.

  • 1-Year Multiple Entry: Stay 90 days per visit with unlimited re-entries for one year.

Fees

  • 2,000 THB — Single Entry (3 months)

  • 5,000 THB — Multiple Entry (1 year)

Required Documents

1. General Requirements:

  • Passport (valid ≥ 6 months)

  • Visa application form

  • Recent 4×6 cm photo

  • Proof of funds: 20,000 THB (individual) / 40,000 THB (family)

  • Travel itinerary

  • Visa fee payment

2. Additional Documents by Purpose:

A. Employment

  • Approval letter (Form WP3) from Ministry of Labour

  • Work permit copy (if previously employed)

  • Employer’s documents (registration, financials, etc.)

  • Police clearance (if required)

B. Business/Investment

  • Letter from home company

  • Invitation from Thai partner

  • Proof of correspondence and financials

  • Thai partner’s documents (registration, tax forms, etc.)

C. Teaching

  • Employment letter from a school

  • Approval from education authority

  • Diplomas/certificates and resume

  • School registration and shareholder list

  • Police clearance (if required)

Application Process

  1. Prepare documents and notarize non-Thai/English files.

  2. Apply at a Thai Embassy/Consulate.

  3. Pay fee — 2,000 THB (single) or 5,000 THB (multiple).

  4. Wait 5–10 business days for approval.

  5. Enter Thailand and apply for a work permit.

After Arrival

  • Work Permit: Apply at the Department of Employment with visa and company documents.

  • Visa Extension: Apply for a 1-year extension before the 90-day limit.

  • Family Members: Spouse and unmarried children under 20 can apply for a Non-Immigrant “O” Visa.

One-Stop Service Centre (Bangkok)

Located at Chamchuri Square, offers extensions and work permits for qualified companies and investors.

FAQs

  • Processing time: 5–10 business days.

  • Start working immediately? No, a work permit is needed.

  • Apply from Thailand? Usually abroad, but some conversions are possible.

  • Path to Permanent Residency? Yes, after 3 consecutive years on a B Visa.

Quick Summary

Visa Type

Duration

Entry

Work Permit

Notes

90-Day B

90 days

Single

Required

Pre-entry application

1-Year B

1 year

Multiple

Required

Exit every 90 days

Final Tip

To navigate the strict paperwork for working or starting a business in Thailand, consider hiring a visa consultant or Thai law firm to ensure compliance and avoid rejections.

About Me
Siac Consulting Experts

Specializes in Thai company formation for foreign entrepreneurs, with expertise in BOI registration, and ongoing corporate compliance.

Stay up-to-date

Helpful Links

Opening a Corporate Bank Account in Thailand

Opening a Corporate Bank Account in Thailand

Certified English–Thai Translation & Legalization in Thailand

Certified English–Thai Translation & Legalization in Thailand

Thailand Trademark Registration

Thailand Trademark Registration

VAT Registration in Thailand

VAT Registration in Thailand

© 2025 Siac Consulting Co. Ltd

© 2025 Siac Consulting Co. Ltd

SIAC Consulting Co. Ltd

Business Visa (Non-B)

Mental Health Matters: Traveling and Coping with Anxiety

Thailand Non-Immigrant “B” Visa (Business & Work) – 2025 Guide

The Thailand Non-Immigrant “B” Visa is required for foreigners aiming to work, invest, or run a business in Thailand. Here’s a concise overview of types, documents, application process, and key rules.

Overview

This visa, issued by Royal Thai Embassies or Consulates, is necessary before starting work or setting up a company in Thailand.

Visa Types

  • 90-Day Single Entry: Stay up to 90 days; leaving cancels the visa unless you have a re-entry permit.

  • 1-Year Multiple Entry: Stay 90 days per visit with unlimited re-entries for one year.

Fees

  • 2,000 THB — Single Entry (3 months)

  • 5,000 THB — Multiple Entry (1 year)

Required Documents

1. General Requirements:

  • Passport (valid ≥ 6 months)

  • Visa application form

  • Recent 4×6 cm photo

  • Proof of funds: 20,000 THB (individual) / 40,000 THB (family)

  • Travel itinerary

  • Visa fee payment

2. Additional Documents by Purpose:

A. Employment

  • Approval letter (Form WP3) from Ministry of Labour

  • Work permit copy (if previously employed)

  • Employer’s documents (registration, financials, etc.)

  • Police clearance (if required)

B. Business/Investment

  • Letter from home company

  • Invitation from Thai partner

  • Proof of correspondence and financials

  • Thai partner’s documents (registration, tax forms, etc.)

C. Teaching

  • Employment letter from a school

  • Approval from education authority

  • Diplomas/certificates and resume

  • School registration and shareholder list

  • Police clearance (if required)

Application Process

  1. Prepare documents and notarize non-Thai/English files.

  2. Apply at a Thai Embassy/Consulate.

  3. Pay fee — 2,000 THB (single) or 5,000 THB (multiple).

  4. Wait 5–10 business days for approval.

  5. Enter Thailand and apply for a work permit.

After Arrival

  • Work Permit: Apply at the Department of Employment with visa and company documents.

  • Visa Extension: Apply for a 1-year extension before the 90-day limit.

  • Family Members: Spouse and unmarried children under 20 can apply for a Non-Immigrant “O” Visa.

One-Stop Service Centre (Bangkok)

Located at Chamchuri Square, offers extensions and work permits for qualified companies and investors.

FAQs

  • Processing time: 5–10 business days.

  • Start working immediately? No, a work permit is needed.

  • Apply from Thailand? Usually abroad, but some conversions are possible.

  • Path to Permanent Residency? Yes, after 3 consecutive years on a B Visa.

Quick Summary

Visa Type

Duration

Entry

Work Permit

Notes

90-Day B

90 days

Single

Required

Pre-entry application

1-Year B

1 year

Multiple

Required

Exit every 90 days

Final Tip

To navigate the strict paperwork for working or starting a business in Thailand, consider hiring a visa consultant or Thai law firm to ensure compliance and avoid rejections.

Stay up-to-date

Helpful Links

Opening a Corporate Bank Account in Thailand

Opening a Corporate Bank Account in Thailand

Certified English–Thai Translation & Legalization in Thailand

Certified English–Thai Translation & Legalization in Thailand

Thailand Trademark Registration

Thailand Trademark Registration

VAT Registration in Thailand

VAT Registration in Thailand

© 2025 Siac Consulting Co. Ltd

© 2025 Siac Consulting Co. Ltd

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