The claim that Washington has the nation’s most unfair tax system comes from the liberal Institute on Taxation and Economic Policy, which favors progressive tax policies. We may quibble about the rankings — these things aren’t easy to measure — but the institute is right: Washington’s tax burden falls more heavily on lower-income taxpayers. It’s regressive, which the institute says is unfair. It also says, “Virtually every state tax system is fundamentally unfair.”
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