Foreign-Sourced Income

You pay Thai tax on foreign income only when the money enters Thailand and the income relates to a year in which you were a Thai tax resident. Income earned in a non-resident year or before 1 January 2024 is exempt when remitted.

Thailand does not tax foreign income on an arising basis. The tax applies only when both conditions align: the income must relate to a tax-resident year and the money must enter Thailand.

Yes. Thailand taxes only the foreign income that you remit or spend in Thailand. For example, if you earn $50,000 abroad but remit only $25,000, then Thai tax is calculated only on the $25,000.

It is not the whole account profit that is taxed, but the gains on assets you sell and remit into Thailand. For example, if you sell shares for a gain and remit the proceeds, the gain portion is taxable in Thailand. Accurate records of cumulative gains are essential for compliance.

No, proceeds from selling an asset in a non-Thai tax year are not taxable in Thailand, provided the sale occurred while you were not a Thai tax resident.

It is calculated on the date it arrives in Thailand (the initial date received in your account); the currency is irrelevant, it is the date the funds are remitted and received in Thailand.