Working with Thai Accountants: What to Expect
For foreign business owners in Thailand, a good accountant isn't optional—it's essential. Here's what to expect.
Core Services Provided
Monthly Bookkeeping
- Recording all transactions
- Bank reconciliation
- Accounts payable/receivable
- Financial statement preparation
Tax Compliance
- Monthly VAT filing (if applicable)
- Monthly withholding tax filing
- Half-year corporate tax
- Annual corporate tax filing
- Personal income tax (for owners/employees)
Payroll Services
- Monthly payroll calculation
- PIT withholding for employees
- Social security contributions
- Year-end tax certificates (Por Ngor Dor 50)
Statutory Compliance
- Annual audit (if required)
- BOI reporting (if applicable)
- DBD annual filing
- Social security registration
Typical Cost Structure
Small Business (Revenue < 5M THB)
Monthly fee: 8,000-12,000 THB
Includes:
- Basic bookkeeping
- VAT filing (if applicable)
- Withholding tax filing
- Annual tax return
Medium Business (Revenue 5-30M THB)
Monthly fee: 12,000-20,000 THB
Includes:
- Full bookkeeping
- All tax filings
- Payroll (up to 10 employees)
- Financial reporting
Larger Business (Revenue > 30M THB)
Monthly fee: 20,000-40,000 THB+
Includes:
- Comprehensive accounting
- All compliance
- Unlimited payroll
- Tax planning
- Audit support
Additional Services (Extra Cost)
BOI Application
- Cost: 100,000-300,000 THB
- Includes: Application preparation, documentation, submission
Company Registration
- Cost: 30,000-50,000 THB
- Includes: Company setup, DBD registration, tax registration
Annual Audit
- Cost: 30,000-100,000 THB
- Required: For companies > 5M THB revenue (varies)
Tax Planning Consultation
- Cost: 20,000-50,000 THB per session
- Value: Often saves 10x the cost in tax savings
What to Look For
Qualifications
- CPA license (Certified Public Accountant)
- Experience with foreign clients
- English proficiency (if you don't speak Thai)
- Industry knowledge (tech, manufacturing, etc.)
Red Flags
❌ Promises to "reduce tax to zero" through questionable methods ❌ Doesn't ask detailed questions about your business ❌ Can't explain their recommendations clearly ❌ Charges suspiciously low fees ❌ Poor communication or responsiveness
Communication Expectations
Monthly Touchpoints
- Financial statements: Delivered by 15th of following month
- Tax filing confirmations: Within 7 days of deadline
- Questions/issues: Response within 1-2 business days
Annual Planning
- Q4 review: Tax planning for year-end
- Year-end close: January-February
- Tax filing: March-May
Your Responsibilities
Provide Documents Promptly
- Bank statements
- Invoices (sales and purchases)
- Receipts
- Contracts
- Employee information
Review Financial Statements
- Don't just file them away
- Review monthly
- Ask questions about unusual items
- Understand your financial position
Respond to Requests
- Accountant may need clarifications
- Respond within 1-2 days
- Delays affect filing deadlines
Working with International Firms
Big 4 (Deloitte, EY, PwC, KPMG)
Pros:
- International expertise
- English fluency
- Comprehensive services
Cons:
- Expensive (50,000-100,000+ THB/month)
- May be overkill for small businesses
Best for: Large companies, complex structures
Mid-Size Thai Firms
Pros:
- Good balance of expertise and cost
- Experience with foreign clients
- Reasonable fees
Cons:
- Variable English proficiency
- May lack specialized knowledge
Best for: Most foreign SMEs
Small Local Firms
Pros:
- Lowest cost
- Personal service
Cons:
- Limited English
- May lack international tax knowledge
- Smaller support team
Best for: Very small businesses, Thai-speaking owners
Questions to Ask Before Hiring
- How many foreign clients do you have?
- Do you have experience with [your industry]?
- What's included in your monthly fee?
- How do you handle BOI reporting? (if applicable)
- What's your response time for questions?
- Can I see a sample financial statement you prepare?
- Who will be my main contact person?
- Do you provide tax planning advice or just compliance?
Related Service: Accounting & Tax Compliance — Professional accounting services tailored for foreign investors.
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