The rules are clear, anyone saying they are not simply haven't bothered to find out for themselves. Starting on
*****
/2024 anyone who is a Thai tax resident (which means spending 180 days or more in a year in Thailand) then income you remit to Thailand in that year becomes assessable for Thai tax and needs to be reported to the Thai Revenue Department in a tax return by the end of March the following year. This does not necessarily mean you will have tax to pay on that as there various allowances you can claim. If your country has a dual tax agreement (DTA) with Thailand you can also claim a credit for any tax already paid in your own country on the income you remit to Thailand. Specifically for Americans the DTA between the US and Thailand means that Pension & SS payments will not be taxed in Thailand. However you will need to complete a Thai tax return to claim all the above.