The vast majority of state and local tax systems are regressive, or upside-down, requiring a much greater share of income from low- and middle-income families than from wealthy families, study says ( itep.org )
On average, the lowest-income 20 percent of taxpayers face a state and local tax rate nearly 60 percent higher than the top 1 percent of households, according to a study by the Institue on Taxation and Economic Policy....
