same in Iceland. When my dad (actually) died, everything in his life ground to an instant halt. As soon as he was registered as deceased in the government system, bank accounts froze, we automatically got letters from a bunch of agencies explaining that they got an update on his status, and in many cases those letters had instructions for next of kin to resolve matters, like collecting life insurance, etc.

The biggest hassle we faced, which wasn't that big really, was going to the bank, with our passports and the death certificate, and asking to have the money transferred to my mom's account. His current bank was even able to contact other banks and we found that he had a couple of old accounts in other banks that we didn't know about. They gave us documents to go there and get the remaining balanced moved.

Getting his online accounts sorted, however, was a different matter. Please leave some kind of "in case I'm dead" envelope for your next of kin with passwords and a description of your digital footprint. It was incredibly frustrating trying to get access to his photo albums and documents on G Drive, for example. I managed to dig out a password at the end, but it took me weeks of trying all sorts of things.