CBO? ... Here's two charts from the CBO..;) http://inequality.org/wp-content/uploads/2011/01/average-after-tax-income-by-income-group.png?4c9b33 Source: Congressional Budget Office, Average Federal Taxes by Income Group, “Average After-Tax Household Income,” June, 2010 http://inequality.org/wp-content/uploads/2011/01/increase-in-after-tax-income-by-income-group.png?4c9b33 Source: Congressional Budget Office, Average Federal Taxes by Income Group, “Average After-Tax Household Income,” June, 2010. So how much did the lower income groups lose?