The Ohio State Agency that oversees the collection and reporting, employment laws, of State income taxes deducted from payroll checks is:
Department of Taxation
P.O. Box 2476
Columbus, OH 43266-0076
(614) 433-7887
(888) 405-4039
www, employment laws, .state.oh.us/tax
Ohio requires that you use Ohio form “IT-4, Employee’s Withholding Exemption Certificate” instead of a [...]

The Illinois State Agency that oversees the collection and reporting, employment laws, of State income taxes deducted from payroll checks is:
Department of Revenue
101 W. Jefferson St.
P.O. Box 19022
Springfield, IL 62794-9022
(217) 785-0970
(800) 732-8866 (in state)
www.revenue.state.il.us
Illinois requires that you use Illinois form “IL-W-4, Employee’s Illinois Withholding Allowance Certificate” instead [...]

Tennessee has no State Income Tax. There for there is no State Agency to oversee withholding deposits and reports. There are no State W2’s to file, no supplement wage withholding rates and no State W2’s to file.
Not all states allow salary reductions made under Section 125 cafeteria plans or 401(k) to be treated [...]