> As I understand in some countries, they instead send you a "pre-filed" statement (Finland, Denmark, Sweden, etc.). If everything looks fine, you don't need to

> As I understand in some countries, they instead send you a "pre-filed" statement (Finland, Denmark, Sweden, etc.). If everything looks fine, you don't need to send anything back at all. It's only if there is a discrepancy that you need to get in touch with the country's tax agency. Yes. I'm in Sweden and self-employed so I have to take a few extra steps when declaring taxes, but just did that last month and it took around fifteen minutes. If you're an employee and your only active source of income is your job, as is the case for most people, "doing taxes" amounts to just approving the prefilled form that you get, which is just a couple of clicks. Or one signature and letter if you want to do it on paper the archaic way. It works because every company has to submit a monthly report of what it paid its employees, and also deducts income tax on your behalf. So when the tax year is over, the tax agency knows how much you earned and how much tax was paid on that, which is all it takes.