Do I need to report to immigration with a TM 30 after returning from Qatar to Thailand?

When returning to Thailand from a trip abroad, it is typically required to file a new TM30 form for immigration purposes. This is especially true if you are coming back after leaving the country and could be enforced within 24 hours of your arrival. However, the specifics may vary by immigration office, and it is generally acknowledged that you can complete this form up to three days prior to your return, even at the airport before passing through immigration.