Illinois 2021 Tax Rates
2021 Illinois Taxes
Withholding Requirements
- Register as an employer on the Illinois Development of Revenue website
Employee's Withholding Tax Exemption Certificate
: REG-1Withholding Method
: FormulaSupplemental Rate
: 4.95%
Local Taxes
Illinois State Unemployment Insurance (SUI)
Illinois Wage Base
: $12,960 for 2021Illinois SUI Rates range from
: 0.525% to 6.925% for 2021Illinois new employer rate
: 3.175% for 2021Illinois mining employer
: 3.425% for 2021
Illinois State Disability Insurance (SDI)
- None
Illinois State Labor Laws
Illinois Minimum Wage
: $11.00 per hour. Rates vary by city, check city minimum wage ratesIllinois Termination Pay
:- Employee is fired — next regular payday
- Employee quits — next regular payday
Illinois New Hire Reporting
- Illinois New Hire Directory
P.O. Box 19473
Springfield, IL 62794-9473 - Phone: 312-327-4473
- Fax: 217-557-1947
Remit Withholding for Child Support to
- Illinois State Disbursement Unit
P.O. Box 5400
Carol Stream, IL 60197-5400 - Phone: 877-664-5738
Illinois Reciprocal States
- Iowa
- Kentucky
- Michigan
- Wisconsin
These free resources should not be taken as tax or legal advice. Content provided is intended as general information. Tax regulations and laws change and the impact of laws can vary. Consult a tax advisor, CPA or lawyer for guidance on your specific situation.