If maximizing the current income is your goal you should consider contracting over FTE. As for the optimal ways - every country has its set of "vehicles" to min

If maximizing the current income is your goal you should consider contracting over FTE. As for the optimal ways - every country has its set of "vehicles" to minimize taxes which usually boil down to establishing LLC type company that pays low CIT instead of high PIT and making use of the capital earned by that company. The question is how deep down that rabbit hole you wanna go and how much time to spend on that. Very often it's not worth the effort and your brain cycles may be better spent for learning new skills or trying to find a higher paying job :) Edit: typo