I signed my 6-month rental contract while I was still in the USA and it showed my current (at the time) California address.
I am now in Porto and I know I need to inform the powers that be of my new local address. I have been told several different places I need to visit to make this simple??? change. The first office I was sent to said I just needed to come back no sooner than 30 days before my SEF appointment, fill out a form and get it notarized with the two apartment owners present as witnesses. My appointment with SEF is July 26 in Espinho.
The next office said I needed to translate my written-in-English rental agreement into Portuguese and then come back again to change it. And to make an appointment on-line first. and the website is only in Portuguese. So far, I have an arsenal of about five words in Portuguese...none of which show up on the website!