Foreign-Sourced Income

If it can be proven that the work was done overseas, and the salary is not from work conducted in Thailand, then you can justify that it is not liable for tax in Thailand. However, if the work was conducted whilst living and working in Thailand, then it is potentially taxable in Thailand.

Tax is based on the amount remitted in Thai baht at the time of transfer or spending. The applicable exchange rate is taken from the Bank of Thailand on the date of the transaction. Average rates are not used; the exact daily rate applies.

Pre-2024 funds can be remitted tax-free, but you must prove they were earned before 2024. The Revenue Department uses a ‘first-in, first-out’ method. For example, if you had €90,000 in your account at the end of 2023 and later withdrew €50,000, you can demonstrate this withdrawal came from pre-2024 savings. Bank statements are essential for proof.

Foreign income becomes taxable when it enters Thailand and the income relates to a tax-resident year. The tax does not apply if the income arose in a non-resident year.

This rule applies to salary, dividends, rent, pensions and gains on overseas assets. The tax is linked to the timing of the income and the transfer. Our full guide explains several examples that show how this works in practice.

Yes, if the income is taxable in Thailand. You must file a return for any foreign income that becomes assessable when it is remitted.

You can find information on our full tax filing services here, including support for PND.90 and PND.91.

We also help with TIN applications if you do not yet have one.