Any assistance with completing a tax declaration would be welcome. I worked in Belgium for the first 3 months of the year and took up a job in Sweden. I commute every week (Brussels - Stockholm) as my family is still staying in Brussels. For my declaration, I have 2 salaries in 2019 (Belgium Q1 in euros and Sweden Q2 to Q4 kronas). I already get taxed in Sweden. My questions is, do I need to convert my krona earnings into euros and combine them with my Belgium Q1 euro salary in order to complete my declaration?