Hi, I'm on my 90-day Non-O visa, the 800k THB deposit should come in before or around Dec. 18, an exact month after my entry. I plan to extend my stay to a year. Many thanks to great advices from this group. My questions are :

1) when should I apply for an extension to a year ?

2) if I wait for my deposit to reach 2 full months and then apply, will I have enough window between 2-month deposit vs. 90-day stay ?

( I really don't want to leave the country and then re-apply for 90-day Non O )

3) are health insurance、criminal record from one's country required for the extension.

4) my Thai bank did not ask for address certificate and I successfully opened an account. Would I still need to apply for address certificate for any purpose ??

K-Bank at EmQuartier shopping mall did an excellent job, no address certificate needed、no hassles、very helpful staff and open on weekends. I strongly recommend this branch ! 💪💪

Million thanks ! 🙏🙏