The total tax burden on families also includes sales taxes, which are steeply regressive, and property taxes, which are progressive. Total personal taxes are mildly progressive, increasing steadily as a share of income from 14% at the 10th percentile to 28% at the 90th percentile, but then falling off sharply to 22% at the top, owing to the favorable treatment of capital gains and investment income, the wage cap on social security taxes, and the sharp regressivity of sales taxes.