How do I complete the first 90-day report for my visa in Thailand?

To complete your first 90-day report in Thailand, you need to fill out the TM47 form, which can be printed or completed at the immigration office. You must also provide copies of your passport and the TM30 form. It's recommended to do this in person at the immigration office a few days before the 90-day deadline. In some areas, such as Bangkok, you can utilize visa offices to expedite the process, often for a small fee.