Can I do my 90-day report anywhere in Thailand while on a road trip?

@Simon *******

... I know, tell that to the OP.

Sadly

@Tim *********

it means you slog on over to what ever immigration office you're near when the 90 day report comes due and you ask them IF you can report there and how you do it living in a camper van.

You might have to actually check into a hotel that shows you're registered as staying in that province so you can use that immigration office

BUT

I'd get ready to be told NO you can't file a 90 day report at any office but the one where you got your extension

AND

then just resign myself to the fact that once I did get back to my province where you actually live you just are going to get a 2000baht fine for failure to file a 90 day report on time

That last scenario, where no place will let you file a 90 day report and you file a late one once you're back home happens quite a lot 😕