Using a newly created measure of state and local tax burden by income
class, this research assesses variations in state-local tax progressiv
ity. Contrary to previous studies on welfare policies, which have foun
d that higher-income states provide more generous welfare benefits, va
riations in state economic resources are shown to have little effect o
n the degree of tax progressivity. Typical measures of political parti
cipation also add little to the understanding of variations in tax bur
den by income class. A proxy for middle-class tax resistance, however,
was a major contributor to tax regressivity. The extent to which a st
ate relies on income taxes and the progressivity of the personal incom
e tax also are major determinants of tax burden differences among the
American states.