So can someone explain the 90 day report? I thought it’s 180 days? What are you supposed to do at the 90 day mark?
TLDR : Answer Summary
In Thailand, expats must file a 90-day report (TM47) at their local immigration office, where their TM30 is registered. This report is required every 90 days when holding a long-stay visa, except for the LTR visa. The 90-day reporting does not affect the initial 180 days allowed on a DTV stamp. If you leave Thailand before the 90 days are up and return, the requirement is reset, meaning you do not need to file if you haven't been in the country for 90 consecutive days.
DTV VISA RESOURCES / SERVICES