I got my Thai drivers license and motorbike license in Bang Chak, Bangkok using my California license. No written test. No driving test. No international driving permit. At the time I just walked in. Now you need to make an appointment.
If you use the fast track lane then they are pretty likely to have seen an LTR visa before. I’ve only done it twice but never had a problem. Do point it out and say LTR anyway and check the stamp before you walk away.
My credit union doesn’t do wire transfers. My BofA bank doesn’t charge for international wire transfers but I’m sure everyone gets their cut during the currency exchange.
In my case I am not paying Thai taxes because I am on a pensioner LTR. My only question was whether I still had to send in a tax form even though I wouldn’t owe any taxes. US citizens have to file a tax return whether they owe taxes or not. I don’t really know about the US government on this but California sent me an inquiry last year for not filing taxes since 2019.
Most of my income is from non-federal pensions so it was an open question for me for my 2014 taxes. Everyone’s income and tax situation is different. Either seek professional help or not.
I would assume they are not all the same. Last year I hired a tax firm in Thailand to file my US taxes and advise on my tax obligations in Thailand. So either read the DTA yourself or hire someone to do it for you . . . or not. I'm pretty sure many are just not filing anything.