Foreign-Sourced Income

If you transfer your investments to Thailand, you may be subject to capital gains tax. Any tax already paid can potentially be used as a credit against the tax owed in Thailand. Remitting funds to Thailand from investments would classify as an assessable income source.

For Thai tax residents, capital gains are calculated based on the gains realised when selling assets. This applies regardless of whether the investments were held before 2024. It does not follow the “cash in the bank” rule.

Thailand currently uses a remittance-based tax system. You will only be taxed if you sell the crypto in a Thai tax year, realise a gain, and remit the proceeds to Thailand.

You can read more about cryptocurrency taxation here.

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.