Accountants & Tax Services in Phuket for Expats

Thai Tax Rules Changed in 2024 — And Many Expats Are Affected

For years, the standard advice in Phuket expat circles was: "If your income comes from abroad and you don't bring it into Thailand in the same year, it's not taxable here." That changed in January 2024 when the Thai Revenue Department updated its interpretation of tax rules. Now, foreign-sourced income remitted to Thailand in the same calendar year it is earned is treated as assessable income — regardless of when it's brought in.

This is a significant shift. Retirees receiving UK pensions, US Social Security, or investment dividends into their Thai bank account are now in territory that warrants professional advice. The good news: Phuket has a small but solid community of accountants and tax advisers who understand the expat-specific issues and speak fluent English. Finding the right one matters.

Do You Actually Need a Phuket Accountant?

Let's be direct about who needs professional accounting help and who probably doesn't:

You Probably Need an Accountant If…

• You run a Thai-registered company (accounting and annual audit are legally required)
• You freelance or consult and earn money from Thai clients
• You receive income from overseas that you transfer to Thailand
• You own rental property in Phuket that generates income
• You have a work permit (quarterly/annual personal income tax filing is required)
• Your company has employees and you need monthly payroll processing and social security filings
• You're registered for VAT (7% in Thailand)

You Might Manage Without If…

• You're retired, have no Thai income, and your foreign pension is protected under your country's DTA with Thailand
• You're on a tourist visa or Non-OA retirement visa with no Thailand income or business activities

What Phuket Accountants Offer Expats

Personal Income Tax Filing (PND 90 / PND 91)

Thailand's personal income tax (PIT) system uses a progressive scale from 5% to 35%. The tax year runs January 1 to December 31, and returns are due March 31 (paper) or April 8 (online). For a straightforward individual filing, a Phuket accountant typically charges ฿3,000–฿10,000 depending on complexity. See our full Phuket tax guide for expats for the current tax brackets and exemptions.

Company Accounting and Bookkeeping

If you own a Thai company — whether a limited company running a small business in Chalong, a BOI-promoted entity, or a property holding structure — Thai law requires monthly bookkeeping, VAT filings (if registered), quarterly corporate income tax prepayments, and an annual certified audit by a CPA (Certified Public Accountant). Skipping any of these creates fines and complications. Monthly bookkeeping packages for small companies start at ฿5,000–฿8,000/month with audit fees typically ฿25,000–฿60,000/year.

VAT Registration and Filing

Businesses with annual revenue above ฿1.8 million must register for VAT. VAT in Thailand is currently 7% (reduced from the statutory 10% since 1997, and regularly renewed). VAT returns (PP.30) are due monthly by the 15th. An accountant handles this as part of a company package.

Payroll Processing

If your company employs Thai staff, you're required to deduct withholding income tax from salaries, file monthly payroll returns, and make Social Security contributions. Getting this wrong is one of the most common compliance failures for small business owners in Phuket. A payroll add-on to your monthly accounting package typically costs ฿500–฿1,500 per employee per month.

Tax Residency and DTA Advice

This is the specialist area that many expats in Phuket need most right now. Thailand has Double Taxation Agreements with over 60 countries including the UK, USA, Australia, Germany, France, and most EU nations. Whether your pension or investment income is sheltered from Thai tax depends on the specific DTA and what type of income it is. A Phuket accountant familiar with expat situations can review your specific position and advise on your filing obligations. See our DTA guide for Phuket expats for country-specific information.

Accounting Fees in Phuket — What to Budget

Last updated: March 2026

What to Look for in a Phuket Accountant

CPA Certification for Company Work

For any service that requires signing off on company financial statements and tax returns, you need a Certified Public Accountant (CPA). In Thailand, CPAs are licensed by the Federation of Accounting Professions (FAP). Only a CPA can sign company annual reports for submission to the Department of Business Development. Verify this before engaging any accountant for company work.

Expat-Specific Experience

Many local Thai accounting firms are excellent at routine company compliance but less experienced with expat-specific issues like DTA analysis, foreign income assessment, and the cross-border aspects of tax residency. Look for firms that specifically mention expat or international client work in their practice.

English Communication

Beyond just English-speaking front staff, you want an accountant who can explain Thai tax concepts clearly in English and who proactively communicates upcoming deadlines and obligations. Ask during an initial consultation how they communicate with clients — email, LINE, face-to-face meetings.

Response Time and Availability

Accounting has hard deadlines. Your accountant needs to be reachable and responsive, particularly around VAT filing dates (15th of the month) and annual return season (January–March). A firm that takes five days to reply to a basic question during filing season is a problem waiting to happen.

Thai Tax Key Dates — The Annual Calendar

Last updated: March 2026

• January 15: Monthly VAT return (PP.30) for December; monthly PND.1 payroll withholding due
• February 28: Year-end withholding tax summary filing (PND.1ก)
• March 31: Personal income tax return deadline (paper); half-year corporate tax (PND.51) planning begins
• April 8: Personal income tax online filing deadline extension
• August 31: Half-year corporate income tax prepayment (PND.51) due
• Monthly (15th): VAT return (PP.30) and payroll withholding tax (PND.1)
• Within 150 days of fiscal year end: Company annual financial statements and corporate income tax return (PND.50) due

Phuket vs Bangkok: Do You Need a Bangkok Accountant?

For most expats and small businesses in Phuket, a Phuket-based accountant is more practical — they know the local Revenue Department office, can attend in-person if needed, and are accessible for meetings. For complex multinational tax planning, large BOI structures, or M&A work, a Bangkok firm with a Phuket presence may be worth the additional cost.

Several larger Bangkok accounting firms have Phuket offices in the Cherng Talay / Bang Tao area and in Phuket Town. These can offer the best of both worlds: international-standard advice with local presence.

Working With Your Accountant Effectively

The most common frustration accountants in Phuket have with expat clients is disorganised documentation. Making their job (and yours) easier:

• Keep all Thai bank statements, income transfers, and financial records — scan or photo everything as you go
• Track all Thai-sourced income including any rental income, consulting fees paid in Thailand, or bank interest
• Keep records of your days in Thailand per year (Thai residency is typically triggered at 180+ days)
• If your company has employees, keep payroll records and social security receipts organised monthly
• Use accounting software — even basic tools like Wave (free) or QuickBooks simplify bookkeeping handoffs