I can’t find much information about the renewal process of the DTV Visa.
From what I understand, you don’t have to leave Thailand after your first 180days (you can renew it at the immigration office)
But do we need to go out the country every 180 days after the 1st renewal?
Thank you
TLDR : Answer Summary
After the initial 180 days on a DTV Visa, you can apply for an extension at the immigration office within Thailand. Following the first extension, you must exit Thailand and upon re-entry, you are granted another 180 days with the option to extend again. This cycle allows for a maximum stay of 360 days in Thailand before requiring an exit.
DTV VISA RESOURCES / SERVICES