[LATEST UPDATED] Building a Business in Thailand Guide | Updated Oct 2026 | Company Setup Checklist for Foreigners, Costs, Documents, Work Permit | PDF

Want to set up a company in Thailand as a foreigner? This guide walks you through every step, what each one really costs, and the documents you need, so you can plan your budget and timeline before you talk to a lawyer or accountant. Updated October 2026.

WHAT'S INSIDE

- The 7 steps from choosing a company structure to opening the bank account and registering for tax

- Foreign ownership explained: the Foreign Business Act, BOI promotion, and the legal routes for foreigners, with a clear warning about nominee "Thai partner" set-ups

- What it really costs: official registration fees with worked examples, typical market prices for registration services, virtual offices, bookkeeping, audit, visa and work permit, and two sample first-year budgets

- Documents you'll need: a checklist table, plus a sample Thai consent letter with an English explanation

- Yearly compliance: what you must file and when

- A setup timeline and five mistakes foreign founders make

WHY THIS GUIDE

- Written by a Thai who works in business development across Southeast Asia

- Real cost ranges from public price lists, so you know what a fair quote looks like

- Every rule links to its official source so you can check for updates

FORMAT

- Instant digital download: 1 PDF

- Opens on phone, tablet or computer, or print it

PLEASE NOTE

- Digital item: nothing will be shipped

- General information only, not legal or tax advice. The sample letter is a template, not reviewed by a lawyer: have a licensed Thai lawyer check your documents before you sign or file

Made by Frontier by Jetni, a newsletter on business opportunities in Southeast Asia.