Its late over here in Europe and I have thought about some possible changes due to seeing the taxsystem in action.
Also seeing the lot of valuable replies and concerns, added some thoughts I will think of until tomorrow or during the day.
Quick edit:
I also will think about the liberty corporations.
Which does not eman they will be all excepted of the tax. Just look at what makes the most sense. As an example, Synth foods makes the big cash in Rheinland, so why except them?