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Thai Tax Residence & DTA Relief for Expatriates
180-day rule, 2024 remittance changes, DTA credits with 60+ countries, and Certificate of Residence filings.
Quick Answer
Thai tax residence = 180+ days per calendar year. From 2024, remitted foreign income is taxable (Por.161/2566), but DTAs give foreign-tax credits with 60+ jurisdictions. Planning + filing from THB 15,000.
FAQ
- When am I a Thai tax resident?
- You are a Thai tax resident if you are physically present in Thailand for 180 days or more in a calendar year (Revenue Code Sec. 41). Residents are taxed on Thai-source income and, from 2024 onward, foreign-source income remitted to Thailand.
- How do DTAs (Double Tax Agreements) help?
- Thailand has DTAs with 60+ countries (US, UK, Australia, Japan, Germany, Singapore, etc.). DTAs prevent double taxation via foreign tax credits, tie-breaker rules for dual residents, and reduced withholding rates on dividends/interest/royalties. We prepare Certificates of Residence (COR) and tax-credit claims.
- What changed in 2024 for remitted foreign income?
- Revenue Department Order Por.161/2566 (effective 1 Jan 2024) taxes foreign-source income of Thai tax residents when remitted to Thailand in the same or subsequent year — reversing the old "remit next year to avoid tax" rule. Planning: pre-2024 savings remitted are exempt; DTA credits still apply.
- Rates?
- Tax residence analysis + planning memo THB 15,000–35,000. Certificate of Residence (COR) filing THB 8,000. Full DTA relief filing with foreign tax credit claim THB 25,000–75,000. Annual expatriate tax return (PND.90/91) THB 12,000–40,000.
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