What paperwork do I need for my first 90-day report in Thailand?

To complete your first 90-day report in Thailand, at a minimum, you will need your valid passport. Depending on the immigration office, you might also require the TM47 form with your address details filled out. Some users have mentioned being able to complete their first report online, especially if done in advance of the due date. It is advisable to check specific requirements based on your local immigration office.