[ghaff]

I live in the US and most of those are not a thing.

I need to file taxes but no one sends me a reminder. My town asks me to verify my address once a year but nothing (other than possibly being eventually removed from voting rolls) happens if I don't. Driver's license and registration are supposed to be your current address but again I'm not sure anything especially happens if they aren't. No one sends me anything to remind me to get my inspection updated.

So I have a supposedly current address on file with various government agencies but AFAIK there is absolutely no rule that, if I pick up and move I have to tell anyone. I do need to file taxes correctly although, as I wrote elsewhere, if I don't have a permanent address that's simultaneously perfectly legal and something of an edge case.