However, what are you missing is that there are exemptions available to you. You could choose to use them (for example, the self education one) and get SEK5000

However, what are you missing is that there are exemptions available to you. You could choose to use them (for example, the self education one) and get SEK5000-SEK10000 (~€500-€1000) BUT then you would have to fill out a tax return. That is just one exemption. Another one relevant for our field is working from home. Similar amount. In order to claim those, though, you will need to file a tax return. If you do not consider that money to be worth the time, then not filing one is a good choice. The Australian system - which could definitely be improved by at least pre-filling things - forces you to actively choose to leave the money behind. The default in the UK, Europe and the Nordic countries is that the money is kept by the taxaxtion office. Defaults are powerful. And they thank you for entrusting them with your extra SEK that you do not want to claim.