How long can I stay in Thailand on a Business Visa?

The Non-Immigrant B visa is generally valid for 90 days for single-entry. Multiple-entry versions may be valid for up to one year, allowing stays of 90 days at a time.

Can I work in Thailand with just a Business Visa?

No, a Business Visa allows you to attend meetings and conduct business negotiations, but you must obtain a Work Permit to legally engage in employment.

Can I extend my Business Visa while in Thailand?

Yes, the single-entry visa can often be extended for an additional period at an Immigration Office in Thailand, provided you meet the specific criteria.

What is a WP.32 letter?

The WP.32 is a letter of approval from the Ministry of Labour. Your employer in Thailand must apply for this before you submit your visa application.

Do I have to apply in my home country?

Generally, you should apply at the Thai Embassy or Consulate in your country of residence or citizenship.

Can I attend a conference on a Tourist Visa?

If your purpose is strictly for a short meeting or conference, some nationalities may use a Visa Exemption or Tourist Visa, but a 'B' visa is safer for formal business.

What is the difference between single and multiple entry?

A single-entry visa allows one entry, while a multiple-entry visa allows you to leave and re-enter Thailand as many times as you like within the visa's validity.

Do I need original documents or are scans okay?

Most embassies require the invitation letter to be an original physical document with a wet signature and company seal, rather than a scan.

visa type country

business visa

Thailand Business Visa — Requirements, Cost, Processing Time

The Thailand Non-Immigrant Category 'B' (Business) Visa is designed for foreign nationals wishing to enter the Kingdom to conduct business, attend meetings, or explore investment opportunities. It is a critical requirement for those who plan to work legally in Thailand, as it serves as the foundation for a Work Permit application. While many travellers enter on tourist exemptions, a formal Business Visa ensures you are compliant with Thai labour laws during professional visits. Navigating the requirements involves coordination between the applicant and the host company in Thailand. The visa can be issued as a single-entry or a multiple-entry permit, depending on the nature of your business and the specific requirements of the Thai Embassy or Consulate where you apply. Note that visa policies are subject to change, and it is essential to verify current document lists with the official embassy or consulate before submitting your application.

Key highlights

Mandatory for attending business meetings or negotiations in Thailand
Standard initial stay of 90 days per entry
Option for single or multiple-entry valid for up to one year
Requires sponsorship from a legally registered company in Thailand
Essential prerequisite for obtaining a Thai Work Permit
Processing typically completed at a Thai Embassy or Consulate abroad
Financial proof of at least 20,000 THB per person often required

Processing time

5-10 working days

Processing times vary significantly by embassy; some locations require appointments several weeks in advance.

Estimated cost

$80 - $250 (subject to embassy location)

Single-entry (3 months) visa fee$80 - $100
Multiple-entry (1 year) visa fee$200 - $250
Consular service or courier feeVaries

Requirements

Valid passport with at least 6 months validity remaining
Official letter of invitation from a registered Thai company
The host company must have a minimum paid-up capital (usually 2M THB)
Host company documents must be signed by an authorised director and stamped
The applicant must not have a criminal record or certain prohibited diseases
Proof of travel insurance covering at least $50,000 (check latest requirements)
Evidence of professional qualifications or CV if requested by the consulate
Proof of residence in the country where the application is being made
WP.32 approval letter from the Department of Employment (for certain applicants)
Payment of the non-refundable visa application fee

Documents you'll need

Passport valid for at least 6 months with two blank pages
Completed and signed visa application form
Two recent passport-sized photographs (6x4 cm) with white background
Original invitation letter from the Thai host company
Approval letter from the Ministry of Labour (WP.32) or existing Work Permit
Copy of the host company's registration and business license
Evidence of financial sufficiency (e.g., recent bank statements)
Flight itinerary and proof of accommodation in Thailand

How to apply, step by step

1
Gather Host Documents
Ask your Thai host company to provide a formal invitation letter and a comprehensive set of corporate documents, including their business license and VAT registration.
2
Obtain Labour Dept Approval
Depending on the specific consulate, your employer may need to apply for a WP.32 letter from the Thai Ministry of Labour on your behalf.
3
Complete the Application Form
Fill out the Non-Immigrant B visa application form accurately, ensuring all contact details match your supporting documents.
4
Book an Appointment
Find the nearest Thai Embassy or Consulate. Many now use an 'E-Visa' system, while others require a physical appointment or postal submission.
5
Submit and Pay
Submit your passport, photos, application form, and all supporting company documents. Pay the visa fee at this stage.
6
Await Processing
Wait for the consulate to review your file. They may contact you for an interview or request additional financial proof.
7
Collect Your Visa
Once approved, collect your passport with the visa sticker or download your E-Visa. Check that all details (dates and visa type) are correct immediately.

Tips to avoid refusal

Ensure all Thai company documents are signed in blue ink and stamped with the company seal on every page.
Check if your specific consulate requires an E-Visa; many major hubs have moved entirely online.
Do not book non-refundable flights until your visa is issued, as processing times can be unpredictable.
Ensure your invitation letter explicitly states the purpose of your visit and the duration of your stay.
If applying for a multiple-entry visa, provide extra evidence of why frequent travel is necessary.
Keep a photocopy of your visa and entry stamp at all times while travelling in Thailand.

Frequently asked questions

Related visa guides

Thailand Visa Guide — Every Visa Type Explained Thailand Tourist Visa — Requirements, Cost, Processing Time Thailand Embassy & Consulate Guide

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Visa policies change frequently. Always verify current requirements with the official embassy or consulate before applying. PermitlyHQ provides general guidance and is not a substitute for legal or immigration advice.

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