Singapore ranked as Thailand's top source of FDI applications in 2024, with 305 projects worth THB357.5 billion, representing 43% of total foreign investment applications that year, according to Thailand's Board of Investment. That's a strong signal, even if it counts applications rather than completed ventures.
Interest is coming from every corner of Singapore's business community: SaaS founders eyeing regional users, trading firms wanting a manufacturing base, F&B brands scouting Bangkok's dining scene, and manufacturing SMEs chasing lower costs. This guide walks through what actually needs to happen, structure by structure, step by step.
TL;DR
- Singaporeans and other foreigners can start a Thai business, but the Foreign Business Act caps ownership at 49% in many sectors
- A Private Limited Company is the usual vehicle: reserve the name, prepare documents, and register with the DBD
- Founders relocating to manage operations need a Non-Immigrant B visa and work permit
- BOI promotion is the most accessible route to 100% foreign ownership plus tax incentives
What Does Starting a Business in Thailand as a Singapore Entrepreneur Involve?
It means legally establishing a commercial entity in Thailand while you (or your Singapore-incorporated company) remain subject to Thailand's Foreign Business Act. That single piece of legislation shapes nearly every decision that follows.
Three questions determine your path:
- Entity type — private limited company, branch office, or representative office
- Ownership structure — Thai majority partner versus BOI promotion for full foreign ownership
- Operating model — remote management from Singapore or an on-the-ground team in Bangkok
Common formats founders land on:
- A Thai Limited Company with a Thai majority shareholder (for restricted sectors)
- A BOI-promoted entity with up to 100% Singapore ownership
- A branch or representative office of an existing Singapore company
Each option trades off control, liability, and setup speed differently—so the right choice depends on your sector and how hands-on you need to be.
Why Singapore Businesses Are Choosing Thailand (When It Makes Sense)
Thailand isn't automatically the right move for every Singapore company. It tends to make sense when your business benefits from scale, proximity, or a lower cost base — not simply because a neighbouring market looks attractive on paper.
Cost tops the list. Bangkok's Grade A office rent runs around THB943 per square metre per month as of Q2 2026, compared with Singapore's Core CBD Grade A rent of roughly S$12.50 per square foot per month, per Cushman & Wakefield's Thailand MarketBeat report. The unit systems differ, but the direction is clear: Bangkok premises cost noticeably less to lease than prime Singapore space.
Beyond rent, several factors keep coming up in founder conversations:
- Regional access — both countries sit inside RCEP, which covers roughly 30% of global GDP, giving Thai-based operations a platform into China, India, and the rest of ASEAN
- Manufacturing depth — a mature supply chain for trading, sourcing, and light manufacturing that Singapore simply doesn't have room for
- Proximity — a short flight lets founders manage operations without relocating full-time
- Existing trade ties — decades of Singapore-Thailand commercial relationships smooth supplier and partner introductions
None of this means Thailand replaces Singapore as your base. For most founders, it's an addition, not a substitution.
What to Know Before You Start (Ownership Rules and Structure Choices)
This is where most Singapore founders trip up. Singapore's incorporation process is famously fast and largely unrestricted for foreigners. Thailand's isn't, and assuming otherwise costs time and money.
Understanding the Foreign Business Act Lists
Thailand's Foreign Business Act (FBA) sorts business activities into three lists:
- List 1 — prohibited to foreigners entirely (media, land trading, some agriculture)
- List 2 — restricted for national security, culture, or natural resource reasons; usually needs Thai majority ownership or Cabinet approval
- List 3 — activities Thai businesses "aren't yet ready to compete with"; requires a Foreign Business Licence (FBL) before you can operate
If your planned activity sits on any of these lists, foreign ownership is generally capped at 49% unless you secure an FBL or BOI promotion.
Choosing Your Ownership Route
| Route | Foreign ownership | Best for |
|---|---|---|
| Thai Limited Company (Thai majority) | Up to 49% | Restricted sectors, simpler setup |
| BOI-promoted company | Up to 100% | Manufacturing, tech, promoted sectors |
| Foreign Business Licence | Case-by-case | List 3 activities without BOI eligibility |
Before you file anything:
- Private limited companies generally need at least three shareholders at incorporation, per BOI's own setup guidance
- Registered capital should reflect at least 25% of estimated three-year operating expenses for FBA-restricted activities
- Decide early whether your Singapore parent holds shares directly or a standalone Thai entity is cleaner for liability
- Private company registration can move in roughly a week once documents are ready
- BOI or FBL approval takes longer; BOI's 2026 guide cites 40, 60, or 90 working days depending on investment size
How to Start a Business in Thailand from Singapore — Step by Step
Registration itself isn't complicated once you know the sequence. Most delays come from founders assuming Singapore's rules apply, or skipping the BOI eligibility check before committing to a Thai partner structure.
Step 1 – Choose Your Business Structure and Ownership Route
Work out which FBA list your activity falls under before deciding anything else. This single check determines whether you need a Thai majority partner, an FBL, or can pursue BOI promotion instead. Common miss: assuming a Thai majority partner is mandatory without first checking whether your sector qualifies for BOI promotion.
Step 2 – Reserve Your Company Name and Prepare Documentation
Submit your proposed name (plus two alternatives) through the DBD portal. Approval typically takes 2-3 working days, and the reservation stays valid for 30 days only (no extensions). While waiting, prepare:
- Memorandum of Association
- Shareholder list
- Director appointment forms Common miss: letting the 30-day window lapse while documents are still being finalised remotely from Singapore.
Step 3 – Register the Company and Obtain Tax ID
Register at the DBD office or via the online portal to receive your company registration number. Then notify the Revenue Department within 60 days to obtain your tax ID card. Common miss: delaying VAT registration until turnover has already crossed the THB 1.8 million threshold — registration should happen before operations begin or within 30 days of hitting the threshold.
Step 4 – Secure Visas and Work Permits for Singapore Founders/Staff
Anyone relocating to actively manage the Thai entity needs a Non-Immigrant B visa before travel, followed by a work permit from the Department of Employment before conducting any business activity. Common miss: signing contracts or managing day-to-day operations on a tourist visa while the work permit is still pending. This is a genuine legal exposure, not a technicality.
Step 5 – Open a Corporate Bank Account and Set Up Finances
Thai banks generally ask for your registration certificate, company seal, shareholder list, and identification for directors and major shareholders before opening a corporate account. Common miss: underestimating how much paperwork — and how many in-person visits — a foreign-owned company needs compared with a wholly Thai-owned one.
Step 6 – Stay Compliant with Tax, Accounting, and Labour Rules
Thailand applies a 20% corporate income tax on net profit and a 7% VAT on turnover above the registration threshold, per the Revenue Department's guidance. Annual accounts must be filed, and companies hiring locally need to watch labour law ratios tied to work permits. The Singapore side still matters. A Thai subsidiary does not pause your Singapore entity's ACRA filings, corporate tax submissions, or GST obligations. VJM Global supports Singapore-based founders with bookkeeping, IRAS tax filings, and payroll compliance so the parent stays current while the Thai entity is built out. For Thai registration and licensing, most founders pair that support with local Thai counsel or a registered agent familiar with DBD and BOI procedures.
Costs and Timeline: What Singapore Founders Should Budget For
Registration fees scale with your registered capital, so budgeting early avoids surprises later.
- Company registration: roughly THB 500 per THB 100,000 of registered capital (minimum THB 5,000; cap THB 250,000)
- MOA filing fee: THB 50 per THB 100,000 (minimum THB 500; maximum THB 25,000)
Standard company registration usually clears faster than promotional or foreign-business approvals. Build extra time for these paths:
- BOI promotion: separate application fees; evaluation typically takes 40–90 working days depending on project size
- FBL applications: committee decision due within 60 days of an accepted filing; pre-committee review has no fixed statutory period
Beyond registration, budget for:
- Visa and work permit fees
- Legal or registered-agent costs
- Ongoing dual-jurisdiction bookkeeping once you run entities in Singapore and Thailand
Conclusion
Starting a business in Thailand from Singapore comes down to one core discipline: matching the right ownership structure to your sector before you file anything. Singapore's incorporation ease doesn't transfer across the border, and the Foreign Business Act makes that clear from day one.
Get the FBA sector check right, sequence your BOI application or FBL filing correctly, and don't let founders operate before their work permits clear. Handle those three things properly, and most of the common mistakes disappear.
Long-term success then hinges on staying compliant on both sides: Thai tax filings alongside Singapore's ACRA, IRAS, and GST obligations, running in parallel as the business grows. If you want help matching the ownership structure, sequencing BOI or FBL filings, and keeping dual-jurisdiction compliance on track, VJM Global supports cross-border entity setup and ongoing tax and corporate filings across Singapore and other markets.
Frequently Asked Questions
Can a foreigner start a business in Thailand?
Yes. Singaporeans and other foreigners can start businesses in Thailand, though the Foreign Business Act (FBA) restricts full ownership in many sectors unless the business secures Board of Investment (BOI) promotion or a Foreign Business Licence.
Which business is profitable in Thailand?
Profitability depends first on where the activity sits under the FBA lists. Manufacturing, tourism and hospitality, BOI-promoted tech and digital sectors, and export-import trading are common fits for foreign-backed businesses.
Do I need to relocate to Thailand to run my business?
Only if you'll actively manage or work within the company. A Non-Immigrant B visa and work permit apply to hands-on roles; remote ownership with local staff running day-to-day operations is possible under some structures.
How is a Singapore company different from opening in Thailand directly?
Singapore incorporation is fully digital with few ownership restrictions for foreigners. Thailand involves foreign ownership caps under the FBA and physical registration steps at the Department of Business Development (DBD), making the process slower and more document-heavy.
Can my existing Singapore company open a branch in Thailand instead of a new entity?
Yes, a branch office is possible, but its activity must match your Singapore parent's business, and it still faces the same FBA restrictions as a new local entity. The parent company also retains legal liability for the branch.
How long does it take to register a company in Thailand?
Private limited company registration typically takes about a week once documents are ready. BOI promotion or Foreign Business Licence approval can take several months, depending on your investment size and sector.
