I've recently moved to Portugal, and I'm not sure the requirements for registering your address. I'm aware that in some EU countries (Germany, for example) you have to register fairly quickly. Whereas in the UK (where I'm from), you basically have to register with the local council for electoral and council tax, but the timescale is basically a little bit more flexible.
I haven't rented anywhere, but I do have a permanent address, so nobody (e.g. letting agent) has provided any "to do list" around this. Can anyone provide any guidance?