all money is earned ultimately - even savings unless you were gifted it, or inherited it. I read your original comment to mean anything from savings account which is not correct.
right but you say savings are not taxable! That is wrong. If you earn money in a year you are tax resident in Thailand, put it in a savings account, and then remit to Thailand it is assessable. That’s all I’m saying.
there is a rule - if you are here more then 180 days you are a taxed resident! it doesn't mean you will have a liability - that depends on many factors - but that is the rule in thailand. If you do not like it then you shouldn't stay here for that long. simple really
you are wrong. If 2025 if the first year you are tax resident anything earned in 2024 is not taxable. If 2026 if your first year, anything earned in 2025 is not taxable and so on.
Where and when did the money come from. If you made it during years you were not a tax resident then it will not be taxed. If you made it in years you were a tax resident it will depend on whether you have already paid tax on it, and whether there is a Dual Tax Agreement in place with your country