[ersii]

Yes, you can even order complete records over your region where you see everyone's income tax as well as their capital gains tax in Sweden.

As far as I know, there's no completely open lookup service on the Internet - all of them are pay-walled. None the less, they're public.

I'm fairly confident that this is common amongst the Nordic countries - albeit not looking exactly the same, they share the same spirit of openness.

That said, in Sweden (Which is the only one I have anecdata from) - it's still frowned upon to ask someone what they earn. Talking about what you earn or how much of a raise you got is also socially awkward.

I don't feel talking about what kind of benefits/subsidy is as socially awkward. I'd say it's more accepted.

Something that is completely socially accepted and frequent each year is talking about how large of a tax return you got.