What should I do after my OA visa expires if I want to continue living in Thailand?

If you hold a Non Immigrant O-A visa and want to continue living in Thailand after one year, you have a couple of options. You can exit and re-enter Thailand before your visa expiration date, allowing you to receive a new one-year stay, provided you have valid health insurance. Alternatively, you can apply for a one-year Extension of Stay at a local Immigration Office if you meet their criteria. However, you cannot change your visa type while still in Thailand, and to obtain a new Non Immigrant O-A visa, you must reapply from your home country.