What I think we need to work on more first is how they are used. A lot of taxes are being stolen by corrupt officials
This is part of the transparency side. Simplification of rules (for instance a flat tax), redistribution of tax resources to work on building transparency, and then the redistribution of the tax spending itself.
I read one republican aspirant is proposing to put the whole US budget on the blockchain. That would really be transparent. If only I agree with all their other platforms.