From the BOI LTR website - “LTR Visa holders staying in Thailand for a period longer than 1 year consecutively are required to report the current address to the Immigration Bureau at Thailand Investment and Expat Services Center (TIESC), 6th Floor, PARADE Zone, One Bangkok Building,Bangkok either in person, or by authorizing someone to report for you on your behalf. This report must be done on a yearly basis counting from LTR Visa issuance date (15 days before or 7 days after the date specified on 1-year report notification card). However, in the case of re-entering the Kingdom, the report will be due in 1 year from the date of the latest arrival.’”
I did it last year. I’m about to do it again this month. No, you don’t get a notice. You go to the new office in One Bangkok. I visited the office in One Bangkok specifically to ask where I am to do the 1 year report.
If you do choose to stay in Thailand after 2 years and do yearly extensions of the OA then you have to investigate the validity of your home country insurance. Chances are it won’t qualify.
Eight years ago I walked into a Kasikorn branch, Phra Khanong, Bangkok, on my first day in Thailand with my Thai girlfriend. I had a new OA visa in my passport. I opened a bank account with no problems. My girlfriend told them to use her address.
Last October I opened a bank account in Bangkok Bank in Sisaket province. This time I had a yellow book and an LTR visa. I opened an account with no problems.
It seems to be much more difficult for newly arrived expats these days.