Taxes on Director's fee, Consultation fees and All Other Income State Income Tax Tables. Many state pages also provide direct links to selected income tax return forms and other resources. Income taxes represent 37% of state tax revenues, according to the Tax Foundation. Choose any state from the list above for detailed state income tax information including 2020 income tax tables, state tax deductions, and state-specific income tax calculators. State tax levels indicate both the tax burden and the services a state can afford to provide … Unlike federal income tax rates, the range of income, … Business taxable income in most states is defined, at least in part, by reference to federal taxable income. Most state corporate income taxes are imposed at a flat rate and have a minimum amount of tax. Taxes on Employment Income The employment income of non-residents is taxed at the flat rate of 15% or the progressive resident tax rates (see table above), whichever is the higher tax amount. States With Flat Tax Rates Among the states that do have income taxes, many residents get a break because the highest rates don't kick in until upper-income levels.