I am currently in a short term rental in bangkok and bought a used car that is bangkok registered. But I am living in chiang mai. I was planning to drive the car right away from bangkok to chiang mai and register it there. But the owner insists i must register in bangkok before going, he is worried something could happen on the way to cm. I guess i can register in bangkok if i have to but if i use my chiang mai address can i get chiang mai plates or i have to use my current bangkok address and get bangkok plates?

I moved from Phuket to Surin 9 years age, plates are still Phuket. I know I must change it and can do it round the corner but I keep forgetting. Al in all it's no problem unless you get an accident maybe.

 

Anyway change them in chian mai

The system is inter province linked.  Use your CM address.  We gave a car (PKK registered) to our daughter (BKK address), and they did the paperwork here/PKK, just once, and registered/tagged with BKK address.