Press Release: A Graduated Rate Income Tax Would Help Reduce After-Tax Income Inequality in Illinois

The Center for Tax and Budget Accountability (CTBA) released a report, How a Graduated Rate Income Tax Would Help Reduce After-Tax Income Inequality in Illinois, which shows that the implementation of a graduated rate income tax can reduce the regressivity of Illinois’ state and local tax system while lessening after-tax income inequality, which imposes lower tax rates on lower levels of income and higher rates on higher levels of income,

The report notes that even as average income growth for the bottom 99 percent of households in Illinois has remained relatively stagnant for almost four decades, growing by an average of just 0.25 percent per year after inflation, the cost of many basic household necessities has increased. Between 2004 and 2017, median household income grew by 6.4 percent, while the average cost of consumer goods and services grew by 29.7 percent. As a result, most low- to middle-income families have a reduced capacity to save or maintain their standard of living.