It has been shown in some cases that due to the Capital gains tax being so low (much lower than the income tax rate for the middle class), the wealthiest of the wealthy who make most of their money from investment return pay lower taxes than your average middle class American. This was what Warren Buffet spoke out against in his op-ed for the NYT http://www.nytimes.com/2011/08/15/op...uper-rich.html . This is, of course, as a percent of total income.
---------- Post added 2011-10-06 at 12:05 PM ----------
PT beat me to it.