[jadimov]

...My goal is to ensure that no citizen of the US pays any more than 20% of their income in taxes...

I think you may have an unreachable goal. We may be able to limit the feds to 10%. There are still state, county, city, and school taxes to contend with.

[DennisR]

You may be right, but we have to try. My idea at the State level, for instance, is to not allow them to take any more than about 4% of anyone's income. This may have to be an AVERAGE of the total cumulative annual income of the residents, but the important thing is that it limits how much government can spend. This would then spread to the county and city levels.