Here's something nobody tells you when you register a Thai company in Phuket: the accountant you pick in month one will touch almost every aspect of your business life here. Taxes, visas, payroll, bank compliance, annual filings — they're in the middle of all of it. Pick badly and you'll spend years cleaning up messes. Pick well and you'll barely think about the administrative side of running a business on the island.
I've been through two bad accounting firms and one excellent one in six years. This guide is what I wish someone had handed me before I started.
Quick Facts — Accounting in Phuket 2026
- Monthly bookkeeping retainers: ฿3,000–8,000/month for small businesses
- Annual corporate tax filing (PND 50): ฿8,000–25,000
- Personal tax returns (PND 90/91): ฿2,500–6,000
- Audited accounts require a Thai CPA signature — not all firms have one in-house
- VAT threshold: ฿1.8M annual revenue — above this, monthly PP.30 filings required
- Social Security (SSO) contributions: employer 5% + employee 5% of salary (capped)
Why Choosing the Right Phuket Accountant Matters More Than You Think
Thailand's accounting and tax compliance system is genuinely complex. You've got corporate income tax, personal income tax, VAT, withholding tax, payroll (SSO), annual audits, and DBD (Department of Business Development) filings — all with different deadlines and penalties for missing them. A good Phuket accountant keeps you on top of all of this. A bad one lets things slip, misfiling happens, and you get penalty notices you didn't expect.
The second issue is language. Revenue Department correspondence arrives in Thai. Penalty notices arrive in Thai. If your accountant doesn't proactively translate and explain these to you, you can end up unknowingly overdue. I know expats who've had tax holds on their Thai bank accounts because of something that started as a ฿500 paperwork penalty that nobody flagged for two years.
Ask any prospective Phuket accountant: "What happens if I get a Revenue Department letter?" If the answer isn't "we handle it and explain it to you", keep looking.
Types of Accounting Services Available in Phuket
Monthly Bookkeeping & Payroll
The ongoing work: recording all income and expenses, reconciling bank statements, processing payroll, filing monthly Social Security (SSO) contributions, and submitting monthly VAT returns (PP.30) if you're VAT-registered. This is typically offered as a monthly retainer of ฿3,000–8,000 depending on transaction volume and whether payroll is included.
Annual Corporate Tax Compliance
Every Thai company must file an annual financial statement (audited if you have employees or significant revenue) and PND 50 corporate income tax return within 150 days of the financial year-end. Most Thai companies use a 31 December year-end, making 29 May the typical PND 50 deadline. The audit itself must be signed by a Thai CPA — verify that your accounting firm either has one or partners with one for this work.
Personal Income Tax Filing
If you're an employee at a Thai company, your employer should be withholding PND 1 (payroll tax) monthly. But you still need to file a personal annual return (PND 91 for employment income only, PND 90 if you have other income sources). Many Phuket accounting firms offer this as an add-on to corporate clients, usually ฿2,500–5,000 per person. See our Phuket expat tax return guide for the full process.
Company Formation & Structure Advisory
Setting up a Thai Limited Company (บริษัท จำกัด), a Thai Partnership, or assessing whether you need a BOI-promoted structure are advisory services some accounting firms offer. Not all do — some stick strictly to compliance and will refer you to a law firm for formation work. Know which you're getting before you sign up. For a full comparison, see our BOI vs standard Thai company guide.
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The Main Phuket Accounting Firms Compared
Here's an honest look at the main players expats use in Phuket. I've worked with or spoken to people who have used all of these.
| Firm | Type | Best For | Monthly Retainer (est.) | English Support | In-house CPA |
|---|---|---|---|---|---|
| Sunbelt Asia (Phuket) | Mid-size regional | Small–medium businesses, business acquisition | ฿4,000–9,000 | Excellent | Yes |
| Mazars Thailand | International network | Larger companies, audit-heavy work, group structures | ฿10,000–30,000+ | Excellent | Yes |
| PKF Thailand | International network | Cross-border structures, audit, M&A | ฿8,000–25,000+ | Good | Yes |
| Phuket Expat Accounting | Boutique local | Small businesses, freelancers, expat personal returns | ฿3,000–6,000 | Very good | Partnered |
| Thai Accounting & Advisory | Local specialist | Thai-owned SMEs, hospitality sector clients | ฿3,500–7,000 | Good | Yes |
| Giraffe Coworking + Accounting | Co-working hybrid | Solo freelancers, Bang Tao digital nomads needing lite accounting | ฿2,500–4,500 | Good | Partnered |
Phuket has a number of "visa agents" who also offer accounting services as a sideline. These can be fine for simple annual returns, but for ongoing business compliance you want a firm whose core business is accounting — not one where accounting is an afterthought to visa processing.
What to Ask Before You Hire a Phuket Accountant
These are the questions that matter, based on hard experience:
1. Do you have a Thai CPA on staff?
If you'll ever need audited financial statements (required for companies with revenue over ฿5M, or with employees, or applying for certain licences), you need access to a Certified Public Accountant. Ask upfront — don't assume.
2. How do we communicate, and how fast do you respond?
Some Phuket firms are great at the actual work but awful at communication. You want someone who responds to Line or email within 24 hours on business days. Ask what their typical response time is. If they hesitate, that's your answer.
3. What accounting software do you use?
Xero, QuickBooks, and PEAK (a Thai-developed cloud accounting platform popular with local firms) are the main options. Avoid firms that still do everything in Excel without a cloud backup — it's a disaster waiting to happen if something goes wrong on their end.
4. What exactly is included in the monthly retainer?
Get this in writing. Monthly retainers often exclude: VAT filing, payroll processing, ad hoc Revenue Department queries, and personal tax returns. Know exactly what you're paying for and what will be billed additionally.
5. How do you handle Revenue Department correspondence?
As mentioned above — this is the make-or-break question. The right answer is: "We handle it and explain it to you." If they say "you'll get letters sometimes, just forward them to us", that's a yellow flag.
6. Have you worked with clients in my industry?
Hospitality (restaurants, bars, hotels) has specific complexities in Thailand — excise tax on alcohol, specific licences, different VAT treatment for certain services. If that's your industry, find a firm that already knows it. Same applies to property holding structures, school or tuition businesses, and import/export.
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Book a Free 30-Min Consultation →Red Flags to Watch For
After talking to dozens of expat business owners in Phuket, these are the warning signs that come up repeatedly:
- They can't give you a clear list of exactly what's in scope. Vague retainer scopes lead to surprise bills.
- They don't proactively remind you of deadlines. Your accountant should be sending you a heads-up before PND 50 season, not waiting for you to ask.
- They file late repeatedly. One slip is forgivable. A pattern of late filings suggests they're overloaded or disorganised.
- They can't explain what they filed. You should always understand what was filed in your name. If your accountant can't explain the numbers, that's a problem.
- No engagement letter. Any professional firm will provide a written engagement letter or contract. No paper trail = no protection for you.
Switching Accountants in Phuket: What You Need to Know
Switching is more common than people think — and less painful than people fear. Here's what to do:
- Get all your records back. This means: all filed tax returns (soft and hard copies), financial statements, Revenue Department correspondence, and your company's full accounting data file (backup from Xero, PEAK, etc.).
- Check there are no outstanding obligations. Confirm there are no pending filings or queries in progress before you hand over.
- Register the new firm's representative at the Revenue Department. Your new accountant will need to be registered as your authorised representative to file on your behalf. This is a simple form process but takes a few days.
- Update your bank authorised contact list if needed. Some banks keep records of who can discuss accounts — update this if relevant.
The whole transition typically takes 2–4 weeks to complete cleanly. Time it away from a major filing deadline if you can.
What You Should Expect to Pay: Phuket Pricing Reality Check
Here's a realistic pricing table for 2026, based on current market rates across Phuket firms:
| Service | Low | Mid | High | Notes |
|---|---|---|---|---|
| Monthly bookkeeping (low transaction volume) | ฿2,500 | ฿4,000 | ฿6,000 | Up to ~80 transactions/month |
| Monthly bookkeeping (medium volume) | ฿4,000 | ฿6,500 | ฿10,000 | 80–300 transactions |
| Monthly VAT filing (PP.30) | ฿800 | ฿1,500 | ฿2,500 | Often bundled into retainer |
| Monthly payroll (per employee) | ฿300 | ฿500 | ฿800 | Includes SSO filing |
| Annual corporate tax (PND 50) | ฿8,000 | ฿15,000 | ฿25,000+ | More for complex structures |
| Statutory audit | ฿15,000 | ฿30,000 | ฿60,000+ | Depends on turnover |
| Personal tax return (PND 90/91) | ฿2,500 | ฿3,500 | ฿6,000 | Per individual |
| DBD annual filing | ฿2,000 | ฿3,000 | ฿4,500 | Often bundled with audit |
If you're a freelancer or solo consultant using an Employer of Record (like Iglu) rather than running your own Thai company, you may only need a personal tax return filing — not a full accounting retainer. See our Iglu EoR guide for Phuket for more on this structure.
Using Technology to Make Accounting Easier in Phuket
A few tools that make the ongoing relationship with your Phuket accountant much smoother:
- Xero or QuickBooks Online: Cloud accounting software that lets you share access with your accountant in real time. Reduces errors from emailed spreadsheets and makes month-end much faster.
- PEAK Accounting (บัญชีพีค): Thai-developed, very popular with local Phuket firms. Integrates well with Thai tax filing requirements. Worth learning if your accountant uses it.
- Wise Business: For receiving international payments into a Thai business context. Makes Wise transfers clearly recordable as business income, reducing bookkeeping ambiguity. See our Phuket freelancer payment guide for more on Wise.
- Google Drive / Dropbox: A shared folder for receipts is basic but massively helpful. Take a photo of every receipt immediately — don't rely on physical paper in Phuket's humidity and chaos.
Protect Your Income While You Build Your Phuket Business
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Compare Health Insurance Plans — Get a Free Quote →The Bottom Line: Who Should You Choose?
If you run a small business with straightforward compliance needs — one Thai company, fewer than 10 employees, no complex cross-border structures — a boutique Phuket firm like Phuket Expat Accounting, Thai Accounting & Advisory, or Giraffe's accounting arm will serve you well at a significantly lower cost than an international firm. The key is to find one that communicates proactively in English and knows your industry.
If you have more complex needs — group structures, significant foreign investment, audit requirements for bank finance or investor reporting — go with Mazars or PKF. The extra cost is worth it for the professional indemnity insurance and international frameworks those firms carry.
And if you're still in the early planning stage, read our working in Phuket hub and our guide on opening a Thai company before you even get to the accountant stage — the structure you choose will define much of what accounting complexity you're signing up for.
