Thai tax filing 2026: What expats should clarify before the April 8 deadlineThailand’s personal income tax filing deadline is April 8, and many expats remain uncertain about whether they must submit a return this year. Under Thai law, individuals who spend 180 days or more in Thailand within a calendar year are considered tax residents. Many expats assume that if foreign income is already taxed, or if no tax appears payable, there is no need to file. Tax paid overseas may qualify for foreign tax credits in Thailand. Expats who would like advice on their personal situation can also book a free support call before the filing deadline.

Source: Bangkok Post March 11, 2026 17:27 UTC