I believe that, if you declare all remittances to Thailand, and pay the taxes due on those remittances, you will have no problems with Thailand. However, if you reside in Thailand permanently, and have no clear evidence of any income, Thailand will eventually get up to speed enough to look closer. Since your Wise account is not a Thailand account, then moving profits to that account does not constitute a tax event in Thailand. Only the money you actually remit into Thailand is assessable.