ThailandNavigator
Business guide hub

Build and run a business in Thailand

Practical guides to starting, promoting, operating and staffing a business in Thailand.

Reviewed 15 September 2026 Official sources checked
Company setupFrom structure to registration
Foreign ownershipUnderstand the rules
Visas and work permitsStay and work legally
Tax and complianceMeet your obligations
Start here

Choose the guide you need

Expert guides with clear steps, practical tips and official sources.

Step by step

Your business journey

Follow these steps to build and run your business in Thailand.

01

Define activities

Clarify what the business will do.

02

Choose structure

Find the right legal structure.

03

Check foreign ownership

Understand restrictions and options.

04

Register the company

Prepare documents and complete registration.

05

Arrange visas and permits

Get the right visas and work permissions.

06

Set up tax and payroll

Register for tax, VAT and payroll as required.

Key decisions

Key decisions before you begin

Understand the main areas that will shape your business.

Compare common routes

An overview of common options for foreign businesses in Thailand.

Which route is right for you?
Business structure Best for Ownership considerations Key next step
Thai limited company Trading and service businesses Foreign ownership may be restricted depending on activities Check eligible activities and prepare registration documents
BOI-promoted company Businesses in targeted sectors seeking incentives Promotion may allow different ownership treatment Review eligible activities and apply for promotion
Representative office Market research, liaison and support activities Cannot undertake commercial trading activities Confirm scope and prepare the required application

Before you register

  • Confirm your business activities are permitted
  • Understand foreign ownership rules
  • Choose the right legal structure
  • Prepare required documents
  • Set a realistic budget and timeline
  • Seek professional advice where needed
After incorporation

After incorporation

  • Obtain a tax identification number
  • Register for VAT where applicable
  • Set up accounting and bookkeeping
  • Register for Social Security where required
  • Maintain required licences and permits
  • File annual returns and financial statements
Professional support

Business services and support

Find trusted professionals to help at every stage.

Frequently asked questions

Can a foreigner own 100% of a Thai company?

It depends on the business activity, structure, nationality, treaty position and whether an approval or investment-promotion route applies. Confirm the current rules before committing.

How much registered capital is required?

Capital depends on the structure, activities, licensing and immigration needs. The registered amount and payment timing should be planned with qualified advice.

When is VAT registration required?

VAT registration generally depends on taxable turnover and the nature of the activity. Check the current threshold and exceptions with Thailand's Revenue Department.

Do directors need work permits?

A director who performs work in Thailand may need the correct immigration status and work authorisation. The answer depends on the actual duties and circumstances.

What must be filed each year?

Companies normally have accounting, financial-statement, tax and corporate filing duties. Requirements and deadlines depend on the entity and activities.

When should I consider BOI promotion?

Consider BOI early if the proposed activity is in a promoted sector and the incentives or ownership framework could materially affect the setup route.

Information you can verify

Use our source links to confirm current requirements with the responsible Thai authority.

Ready to plan your business?

Get the right information and trusted support for your business in Thailand.

Start with the setup guide

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