Tax Compliance Requirements for Companies in Thailand: A Complete Guide
What Are the Tax Compliance Requirements for Companies in Thailand?
If you plan to start or operate a business in Thailand, understanding the tax compliance requirements is essential to ensure legal operation and avoid penalties. Thai law requires companies to register, file, and pay various taxes on a regular basis. Below is a breakdown of the key tax compliance responsibilities for companies in Thailand.
✅ 1. Corporate Income Tax (CIT) Filing
- Annual Corporate Income Tax Return (Form PND 50)
- Must be filed within 150 days after the end of the accounting year.
- Based on the company’s net profit.
- Half-Year Corporate Income Tax Return (Form PND 51)
- Prepaid tax based on estimated profits.
- Due within 2 months after the first 6 months of the accounting period.
✅ 2. Value Added Tax (VAT) Filing
- Companies with annual revenue exceeding 1.8 million THB must register for VAT.
- Monthly VAT Return (Form PP.30)
- Due by the 15th of the following month.
- VAT on sales minus VAT on purchases.
- VAT Registration and Deregistration are required if revenue increases or decreases beyond the threshold.
✅ 3. Withholding Tax (WHT) Filing
- Certain payments (e.g., rent, professional fees, service fees) are subject to withholding tax.
- Monthly Withholding Tax Return (Forms PND 1, PND 3, PND 53)
- Due by the 7th of the following month (or 15th if filing online).
✅ 4. Social Security Contributions
- Companies with employees must register with the Social Security Office.
- Monthly Social Security Filing (Form SSO 1-10)
- Due by the 15th of the following month.
- Both employer and employee contribute to social security (approximately 5% each, up to a salary cap).
✅ 5. Specific Business Tax (SBT) (For specific industries such as banking, finance, real estate)
- Monthly SBT Filing if applicable (Form ภธ. 40).
- Tax rate varies depending on business type (e.g., 3% for financial services).
✅ 6. Other Tax and License Obligations (If Applicable)
- Stamp Duty for certain legal documents.
- Excise Tax for specific goods (e.g., alcohol, tobacco, fuel).
- Municipal and Signboard Tax for businesses with office signage.
🎯 Summary of Key Tax Filing Deadlines in Thailand
| Tax Type | Form | Filing Frequency | Deadline |
|---|---|---|---|
| Corporate Income Tax (Annual) | PND 50 | Annually | Within 150 days after year-end |
| Corporate Income Tax (Half-Year) | PND 51 | Annually | Within 2 months after first 6 months |
| Value Added Tax (VAT) | PP.30 | Monthly | By 15th of the following month |
| Withholding Tax (WHT) | PND 1, 3, 53 | Monthly | By 7th (or 15th online) of following month |
| Social Security Contributions | SSO Form | Monthly | By 15th of the following month |
| Specific Business Tax (if applicable) | ภธ. 40 | Monthly | By 15th of the following month |
💡 Important Notes:
- Tax compliance is mandatory for all registered companies in Thailand, whether or not they generate profit.
- Non-compliance can result in penalties, surcharges, and legal actions.
- Proper accounting records and tax filings are essential for audits and government reviews.
💼 How BRW Can Help You Stay Compliant with Thai Tax Laws:
At BRW – Boonrawee Co., Ltd., we provide comprehensive tax compliance services, including:
- Monthly and annual tax filings (CIT, VAT, WHT).
- Payroll and social security management.
- Tax planning and consulting to optimize your tax position.
- Liaison with the Revenue Department and government agencies.
📞 Contact BRW today for a free consultation on tax compliance and business setup in Thailand!
