Tax Day—it’s April 18 this year, for you procrastinators—is a bracing annual reminder of how deeply the government reaches into our pockets. One way to reduce your income tax burden? Switch states. Federal tax rates are the same no matter where you live, but state income taxes are all over the place. Some have progressive tax systems, where top earners pay a higher marginal rate on their taxable income than those who make less. Eight states have a flat tax, applying the same percentage levy across all incomes. Three states actually have regressive income taxes, where the mega-wealthy pay a lower percentage of their taxable income than those in the middle. And nine states have no income tax at all. See how your state stacks up.