What Is State Income Tax
State income tax is a tax on the amount of income earned in the state you live or work in. States use income tax to pay for government services including education, health care, transportation, corrections, and low-income assistance. It is set by state legislative bodies, which creates variances from state to state. States vary widely in their approaches to income tax. Most states have graduated tax brackets, some levy a flat tax, some have no income tax, and one state–New Hampshire–only taxes interest and dividend income....