Thailand's headline corporate income tax (CIT) rate is 20.
The headline personal income tax (PIT) rate is 35.
The standard VAT/GST (or equivalent consumption tax) rate is 7. Registration thresholds, zero-rated and exempt categories, and reduced rates vary by jurisdiction - see the source link below for the full detail on this jurisdiction.
Under Section 41 of the Thai Revenue Code, an individual is a Thai tax resident if present in Thailand for 180 days or more in a calendar year, regardless of visa status or nationality. Residents are taxed on Thailand-source income and, since a rule change effective January 1, 2024, on foreign-source income brought into Thailand regardless of when it was earned (previously, foreign income was taxable only if remitted in the same year it was earned - that same-year loophole no longer applies). Non-residents are taxed only on Thailand-source income.
Thailand has no Controlled Foreign Company provisions.
Thailand has no general thin capitalization rules, though a specified debt-to-equity ratio may be imposed as a condition for certain businesses or as a requirement for accessing specific tax incentive regimes (e.g., BOI promotion).
Thailand has concluded double tax treaties with 61 countries, including the US, UK, Australia, Canada, and Singapore. Given the January 2024 remittance rule change, these treaties have become the primary mechanism for tax residents to relieve double taxation on foreign income brought into Thailand, rather than the previously available same-year deferral strategy.