If you are setting up or already running a foreign-owned business in Phuket — a Thai limited company, a BOI-promoted entity, or a representative office — the accountant question is bigger than the visa question. The wrong choice means missing VAT input claims, incorrect withholding tax filings, surprise corporate tax bills, work permits at risk, and an annual audit that takes six weeks longer than it should. The right choice is invisible: filings happen on time, you find out about issues in advance, and the Revenue Department leaves you alone.
Below is the shortlist I would actually give a friend setting up a company on the island, based on six years of watching firms perform — and underperform — across Phuket Town, Cherng Talay, and Chalong. Pricing is May 2026.
Key facts: Phuket business accounting (60 seconds, 2026)
- Small Thai limited co, 1–5 staff: monthly bookkeeping + VAT + payroll typically 6,500–12,000 THB / month; annual audit 25,000–45,000 THB.
- BOI-promoted company: 12,000–22,000 THB / month plus 60,000–120,000 THB annual BOI report.
- What a Thai CPA must sign: monthly VAT (PP30), withholding tax (PND 1, 3, 53), corporate income tax (PND 50/51), and the annual audited financial statements.
- Phuket firms worth using: Mazars Phuket (large), Acclime Phuket (mid-tier), Wisecounsel (boutique), MSNA Phuket (online businesses), Phuket Audit Group on Yaowarat Rd (lower-cost).
- Avoid: "one-stop" agencies in Patong that bundle visa + accounting + setup. Conflicts of interest and weak audit quality.
- DTV tax filers: Thai personal tax return for foreign-source remitted income is 8,000–20,000 THB.
What "good" actually looks like for a Phuket accountant
Before naming firms, the criteria. The accountants worth paying for in Phuket share five characteristics.
They send a monthly closing checklist by the 5th, get receipts and bank statements from you by the 10th, file VAT (PP30) by the 15th, and the withholding tax returns (PND 1, 3, 53) by the 7th. If yours does not work to a published cycle, they are reactive rather than proactive — and you will discover a missed filing two months after the deadline.
They speak working English. Not perfect English. Not Patong-tour-guide English. Working English, including the technical vocabulary for input tax credit, accrual basis, and Section 41 of the Revenue Code. If the firm's senior contact cannot explain in plain English why a particular invoice does not qualify for VAT input, find another firm.
They have a licensed Thai CPA on staff who actually signs your annual audited financial statements. Not a junior preparing the file and a "consulting CPA" rubber-stamping it. The Thai Federation of Accounting Professions register is searchable; check that the signing CPA's name appears.
They tell you about issues before the Revenue Department does. Late VAT input claims, withholding tax under-paid by employees, mismatched payroll vs Social Security registrations, related-party transactions that look unusual — these things should reach you proactively in a monthly note, not as a surprise during the audit.
They have at least 5 foreign-owned company clients in the same business category as you. Hospitality, training, software, content, e-commerce, import — different categories have different gotchas. A firm that mostly does Phuket hospitality is not the right pick for a SaaS company.
The Phuket shortlist for expat-owned businesses, 2026
Mazars Phuket
The international firm with a Phuket office. Mazars handles many of the larger foreign-owned operations on the island — hotels, large yacht companies, regional sales offices. Their Phuket team is based in Phuket Town (Wirat Hongyok Rd area). Strong on BOI applications, transfer pricing for cross-border companies, and complex audits. Cost is at the top of the market: monthly bookkeeping starts around 12,000 THB / month for a small company and rises quickly with complexity. Annual audit for a small company is 50,000–80,000 THB; BOI report 80,000–150,000 THB. The right choice if you have revenue above 30M THB / year or BOI promotion.
Acclime Phuket
Mid-tier international firm (formerly Sherrings). Offices in Bangkok with a Phuket presence that handles a wide range of foreign-owned SMEs. Solid on company setup, VAT registration, work permits in coordination with their immigration team. Pricing tends to be 9,000–16,000 THB / month for monthly compliance plus 35,000–55,000 THB for the audit. Good fit for the 5–25M THB revenue band. Their portal-based document upload system is one of the few that actually works.
Wisecounsel Co Ltd (Phuket Town)
Boutique firm I have personally used. Based on Yaowarat Rd in Phuket Town. Senior partner is a Thai CPA who has worked with foreign-owned companies for over 20 years and speaks fluent English. The firm is small enough that you deal with the same person every month, large enough that they have proper backup. Monthly compliance for a small company is 6,500–10,000 THB; audit 25,000–40,000 THB. The right choice for a one-person Thai limited company or small consultancy.
MSNA Phuket
Specialises in online businesses, e-commerce, content creators, and small SaaS operations. Originally Bangkok-based, with a Phuket office that has grown to serve the digital-nomad business community. Strong on payment-gateway reconciliation, Stripe / Wise / PayPal accounting, and cross-border invoicing. Pricing is similar to Wisecounsel: 7,000–11,000 THB / month plus audit. If your business mostly invoices customers outside Thailand and receives funds through international payment processors, MSNA has seen your pattern before.
Phuket Audit Group (Yaowarat Rd)
Smaller, Thai-managed firm offering more affordable monthly compliance at 4,500–7,000 THB / month. Solid on Thai-side bookkeeping, somewhat weaker on cross-border and BOI work. Good fit for a Thai-spouse limited company where the business is genuinely local (a small import shop, a Phuket-Town restaurant, an apartment building manager). The audit is competent but slower than Mazars or Acclime — plan an extra month of lead time.
RSM Phuket
Another international-network firm with an office on the island. Strong on tax planning, transfer pricing for cross-border groups, and regulated industries (hospitality, real estate). Pricing is competitive with Acclime. They also handle the personal Thai tax return for DTV holders and LTR holders well — useful if your company and your personal Thai tax are intertwined.
Pricing comparison: what you should actually pay
Real 2026 fees for a generic foreign-owned Thai limited company in Phuket with two employees, 5M THB annual revenue, VAT-registered, no BOI.
| Firm | Monthly compliance | Annual audit | One-off setup | Notes |
|---|---|---|---|---|
| Mazars Phuket | 13,000–18,000 THB | 55,000–80,000 THB | 45,000–80,000 THB | Premium tier; best for >30M revenue |
| Acclime Phuket | 9,500–14,000 THB | 40,000–55,000 THB | 35,000–60,000 THB | Mid-tier; good portal system |
| Wisecounsel | 7,500–11,000 THB | 28,000–42,000 THB | 25,000–45,000 THB | Boutique Phuket Town |
| MSNA Phuket | 7,500–12,000 THB | 30,000–45,000 THB | 28,000–48,000 THB | Online business specialist |
| Phuket Audit Group | 4,800–7,500 THB | 25,000–38,000 THB | 20,000–35,000 THB | Local Thai SMEs |
| RSM Phuket | 10,000–15,000 THB | 45,000–60,000 THB | 40,000–65,000 THB | Strong tax planning |
| Bundled "agency" (Patong, Cherng Talay) | 3,500–5,500 THB | 15,000–25,000 THB | 15,000–30,000 THB | Avoid for serious businesses |
What to ask before signing an engagement letter
Before you commit to any Phuket accountant, ask these seven questions in writing. The answers tell you whether you are dealing with a professional firm or a bundling agency.
- What is the name and Thai CPA registration number of the partner who will sign our annual audit? (Verify on the Thai Federation of Accounting Professions website.)
- How many foreign-owned company clients do you have in our business category, and can we speak to one of them?
- By what date in the month will we receive a closing summary, and what is your latest acceptable submission date for our receipts and bank statements?
- Do you handle withholding tax filings (PND 1, 3, 53) within your monthly fee, or as an additional service?
- Will you proactively flag VAT input claims we may be missing, related-party transaction risks, and Social Security registration gaps?
- If we receive a Revenue Department or Social Security inspection notice, is representation included or quoted separately? What is the hourly rate?
- What is your annual fee escalation policy?
Firms that answer these clearly, in writing, are the firms worth engaging. Firms that hedge or change the subject are the ones to walk away from.
Pay your accountant in THB — save 2–4% on the transfer
If you are funding the company from abroad, sending the monthly fee through a regular bank wire loses 2–4% on FX. On 120,000 THB / year of accounting fees that is 2,400–4,800 THB you keep with Wise — and the same applies to BOI capital injections.
Open Wise business account →BOI promotion: when it is worth pursuing
The Board of Investment scheme gives foreign-owned companies tax holidays, 100% foreign ownership in qualifying business categories, simplified work permits, and exemptions from the Foreign Business Act. For some businesses it is transformational. For others it is paperwork that exceeds the benefit.
BOI works well for: software development with regional ambitions, content creation operations, training and education businesses, certain manufacturing, biotech, and digital services. It generally does not work for: small hospitality (most categories require minimum capital well above small-hotel needs), import-and-sell businesses, local-market restaurants, and most one-person consultancies.
The application is 3–6 months and requires 1.5–3M THB in registered (often paid-up) capital depending on the category. Mazars Phuket, Acclime Phuket and RSM Phuket all handle BOI applications competently. Expect a one-off fee of 80,000–200,000 THB for the application itself, plus higher ongoing monthly compliance because BOI reporting adds work.
Personal Thai tax for DTV and LTR holders
Worth mentioning because it overlaps. Since 2024 Thailand taxes foreign-source income remitted into Thailand in the year of receipt for tax residents (180+ days). DTV holders who stay long enough to become tax residents need to file a Thai personal income tax return (PND 90 or 91). LTR holders have specific exemptions but still file.
The Phuket firms that handle personal expat tax well are Wisecounsel, MSNA, and RSM. Budget 8,000–20,000 THB for a personal Thai return depending on complexity. If you have a Thai company plus DTV personal tax, use the same firm for both so the cross-reference checks happen naturally.
Need an introduction to a Phuket accountant?
We keep contacts at Wisecounsel, MSNA and Acclime for friends setting up businesses on the island. Email us with a one-paragraph description of your business and we will route you to the right firm. No referral fee at our end.
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