Working full time as employee and doing translations as freelancer / Taxes?
I recently moved from Germany for a full time job as employee in Brussels. When I was living in Germany 2-3 times a years a worked too as a translator or interpreter during weekends, writing bills for it. In Germany I was used to declare everything in my tax declaration and expect that the state will deduct some 40% of my income as freelancer but that I could deduce many costs I had for doing this work. Now I live here but I still have the chance next year to do this freelance jobs in Germany. How does this work? I declare them here as extra income? Or in Germanz separately? How much can In expect that I will have to pay on taxes for every 1 EUR earned as freelancer?