"Regarding Thailand. There is a lot of misinformation and nonsense posted." - I mention your introduction cause it suits your post.
If you are bringing to Thailand a dividend from abroad for example, you can get it without working (so no work visa needed, all perfectly legit), but living there for more than 183 days / year makes you a fiscal resident, no matter what, therefore you must pay tax. PERIOD. There is no BUT or IF.
You stay 183 days, you are fiscally resident. The only way to avoid paying taxes is to leave the money abroad and take them in later on
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Is the bank gonna question you about the source of money? Nope. Will the Revenue Dept. catch you for it? Probably not, just 10 million thai file the tax return and just 3 million pay taxes. BUT... this doesn't make it legal either.
Regarding the thread: legally Thailand is pretty advanced about crypto, and if you want to follow the rules unlike
@drysky, it's the last place you'd like to be. I know personally a few people ended up in jail for buying crypto for cash, and no, they couldn't buy their way out paying the guys in uniform, it's not always the case.