Real-Life VAT Challenges for International Companies in Thailand
1. Incorrect VAT Registration
Issue: Failing to register for VAT early to claim input VAT credits.
Example: A client setting up a manufacturing plant delayed VAT registration because operations had not started, despite incurring significant VAT on fixed assets and construction costs.
Solution: We advised them to register for VAT early, even before starting operations, to claim input VAT credits on their expenses. By amending their registration, they recovered missed credits, significantly reducing their setup costs.
2. Misapplication of VAT Rates
Issue: Incorrect application of VAT rates on exports and domestic sales.
Examples:
• Applying the standard 7% VAT rate on export sales instead of zero-rating, leading to overpayment.
• Applying a 0% VAT rate on sales incorrectly classified as exports when they did not meet the criteria, resulting in underpayment.
Solution: We helped clients amend their VAT returns to recover overpaid taxes and ensure they correctly applied VAT rates according to their transaction types.
3. Improper VAT Invoicing
Issue: Issuing VAT invoices without all required details.
Examples: A hospitality client issued VAT invoices missing necessary details such as the VAT registration number and correct VAT amounts, resulting in disallowed deductions during an audit.
Solution: We guided them in revising their invoicing process to comply with Thai regulations, including all necessary details, to avoid future penalties and ensure accurate VAT claims.
4. VAT Input Tax Credit Errors
Issue: Claiming input tax credits on non-deductible or personal expenses.
Examples: A retail company claimed input tax credits on non-deductible items, leading to penalties during a tax audit.
Solution: We assisted in correcting these errors by identifying eligible expenses and ensuring proper documentation. We also trained staff on distinguishing between deductible and non-deductible expenses to prevent future mistakes.
5. Missing Self-Assessment (PP36) on Imported Services by Foreign Suppliers
Issue: Failing to self-assess VAT on imported services provided by foreign suppliers, which is required under Thai law.
Examples: A client receiving digital marketing services from a foreign supplier did not file the PP36 form and pay VAT on these imported services, leading to non-compliance.
Solution: We helped the client understand the requirement for self-assessment of VAT on imported services. We guided them in filing the PP36 form and paying the outstanding VAT to comply with Thai regulations. We also implemented a process to ensure they regularly self-assess VAT on all imported services moving forward.
6. VAT Reporting Mistakes
Issue: Errors in monthly VAT returns due to incorrect calculations or data entry. Failing to self-assess VAT on imported services provided by foreign suppliers, which is required under Thai law.
Examples: A service provider consistently made errors in their monthly VAT returns, resulting in repeated fines for late submissions.
Solution: We implemented a robust internal review process, which included a checklist system and regular training sessions for their accounting team, ensuring accurate reporting and timely submissions.
Conclusion
These real-life examples highlight the importance of understanding and correctly applying VAT regulations in Thailand. By adopting best practices such as early VAT registration, proper documentation, regular staff training, and utilizing professional advice, international companies can navigate Thailand’s VAT landscape more effectively. This proactive approach ensures compliance, maximizes VAT recovery, and minimizes the risk of costly mistakes and penalties. Additionally, staying aware of self-assessment requirements for imported services can prevent unexpected liabilities and maintain smooth business operations.
For assistance with any withholding tax matters or conducting a tax health check, please contact us at contact@kreston-thailand.com. Our team is here to help you manage withholding tax complexities and maintain compliance. Additionally, Kreston Thailand offers outsourced accounting services to further streamline your financial operations and ensure all aspects of your business are well-managed
Kreston Thailand offers a comprehensive range of services to support your business, including:
- Statutory audits and assurance
- Internal audits and risk management
- Outsourced accounting and payroll management
- Tax compliance and advisory
- Transfer pricing
- Transactions
- Corporate legal services

