Good afternoon (from Australia), my wife and I, Australian passport holders & both in our 60s, are wanting to settle permanently in Koh Samui early next year.....as we will have immediate family moving there. I know that there is a 45 day entry without visa but am keen to apply for the Retirement Visa (O-A) as we would have the necessary 800k baht each, medical insurance & police check.

I want to apply but am unsure how to go about it....can I go to KS and we both apply there? Is this something I should do in Oz? How would we satisfy the Thai Bank account prerequisite? Also, are we allowed to come into Thailand on a one-way ticket using our 45 day stamp?

I thought I had all this clear in my mind but I'm sorry to say I'm struggling! We intend to leave January 30th 2023.