What happens if I miss my 90-day report deadline in Thailand due to immigration office closure?

If your 90-day report is due and you can't submit it on time due to the immigration office being closed, you generally have a grace period to submit the report without penalty. According to comments, you have up to 7 days past the due date to file without incurring a fine. If you report on the 8th or 80th day, you would face a fine of 2,000 baht. Some users also suggested that you might consider submitting the report online.