Small Business Events in Your Area
Doing Business in the State
Illinois - Business
Registration, Licenses, and Permits
Office of the Secretary of State - Services for Business
Step-by-Step Guide to Starting a Business in Illinois
Illinois Department of Commerce and Economic Opportunity
Taxation
Illinois Department of Revenue - Businesses
Employer Links
Department of Employment Security
New Hire Registry
General
Small Business Administration - Illinois
State Agency List
Selling to the State of Illinois
Illinois Compiled Statutes
SBA.gov's Business Licenses and Permits Search Tool allows you to get a listing of federal, state and local permits, licenses, and registrations you'll need to run a business.