Illinois State Tax Calculator is used to calculate the taxes for both Employee and Employer -Withholding and Employer Unemployment tax.
Illinois State Taxes:
Illinois State Employee Withholding Tax. (EE pays these taxes).
Illinois Employer Unemployment Tax. (ER pays these taxes).
Illinois Unemployment Taxes
Employer (ER) pays State Unemployment Taxes (SUTA). If Employer has different experience rate based on SUTA claims and other factors, they pay a different rate from the default standard rate.
Illinois Reciprocity Agreement
Illinois State has any Reciprocity Agreement with Iowa, Kentucky, Michigan, Wisconsin states. In this
Illinois State Income Tax Calculator
you can calculate the taxes with Resident Location as Idaho and work location with all other 50 states. Basically you can estimate payroll taxes different combinations of residence/work area scenarios.
Illinois Local Authority Tax
Illinois State does not have any county level tax.