Hello. I own a house in Phuket and am registered at that address. I am now planning to travel through Thailand and would like to know if I need to inform immigration before I leave and/or after I come back? I am staying in hotels along the way and assume that they have to register me anyway. Do I still have to do something myself? Thanks a lot .
TLDR : Answer Summary
If you own a house in Phuket and plan to travel through Thailand, you do not need to inform immigration about your departure. However, you must inform them upon your return by filing a TM30 form within 24 business hours. Hotels are required to register you as a guest, so they will take care of the TM30 as well. The requirement for the TM30 applies only when you return to the country from overseas.