Hello, I have a work permit, I just realised that I had to do the 90 days report on 16 June, but I completely forgot it..what can ever happen when I go to Immigration?.
TLDR : Answer Summary
If you've missed your 90-day reporting requirement for your work permit in Thailand, you can expect to face a fine of 2,000 baht when you visit Immigration. This fine is the same regardless of how many days late you are. Some expats choose to neglect the report and simply pay the fine when they need to extend their visa or permit. While the fine is the main consequence, it's wise to keep track of such deadlines in the future to avoid additional complications.