As pointed before, the problem with flat taxes is that the burden is greater for those at the lower end of the spectrum. It has been pointed before. While no one can argue that the person earning 1,000,000 will pay more in taxes than the person earning 10,000, the higher earner is left with considerably more. I believe that the best system would have a bracketed system like we currently have, but it should also include some portion that one must pay regardless of deductions. Or the elimination of most deductions and loopholes in conjuction with a lowering of rates. Everybody should be able to deduct an amount equal to the poverty line. After that, it's taxed.