Here's a great interactive tool from IBM, based on 2010 data: http://www-958.ibm.com/software/data/cognos/manyeyes/visualizations/income-percentiles-for-2010-by

Here's a great interactive tool from IBM, based on 2010 data: http://www-958.ibm.com/software/data/cognos/manyeyes/visualizations/income-percentiles-for-2010-by-typ http://www-958.ibm.com/software/data/cognos/manyeyes/visuali... 99% = $515k taxable household income, which I believe includes capital gains. It's a hard L-shaped graph though, the difference between 30 and 40% is under $10k, but the real jumps don't come until the mid 90% range.