Yes it is, I’ve done that a few time and I always do it myself as it’s very easy. However, the last time the Thai Immigration Senior Officer, gave me a hard time saying the transfers to my Thai bank account have to come from a U.S, government agency, not my U.S. bank. I always use Wise Transfer Service to send the $ from my U.S. bank to my Thai bank. The immigration guidance I saw 4 years ago when I did it last said nothing about my transfer coming from a U.S. govt agency to my Thai bank account. He eventually approved it after yelling. I’m thinking maybe he gets a payoff from the agents foreigners pay to do this for them and he was pissed. I did it myself and he gets nothing.