Since DTV isn’t considered a tourist visa, you might wonder if this might make opening a bank account easier in the future. While these forms are part of international tax compliance and don’t directly simplify the account opening process, they do show banks are engaging with DTV holders as valid customers.
If you leave the country and come back, your IDP is good for another 90 days. Also, the IDP expires in one year. This should give you time to get a Thai drivers license, which is simpler with an IDP.