Illinois Business Licensing Requirements
Getting your Illinois sales tax registration is just one step. Depending on your business, you may need additional licenses.
Illinois Secretary of State Registration
- LLCs — Articles of Organization ($150)
- Corporations — Articles of Incorporation ($150)
- Limited Partnerships — Certificate ($150)
Register at ilsos.gov.
Assumed Business Name
If operating under a different name, file an Assumed Business Name Registration with the county clerk. Fees vary by county.
Federal EIN
Get your free EIN at irs.gov/ein.
City of Chicago Business License
Businesses operating in Chicago need a Chicago Business License. Apply through the city’s Business Affairs office.
Professional Licenses
- Contractors
- Cosmetologists and barbers
- Real estate agents
- Healthcare professionals
Verify at idfpr.illinois.gov.
Industry-Specific Licenses
- Food Service: Illinois Department of Public Health license
- Alcohol: Illinois Liquor Control Commission license
- Tobacco: IDOR tobacco license
Illinois Business Setup Checklist
- Register with IL Secretary of State
- Get your EIN from the IRS
- File Assumed Business Name if using DBA
- Register for IL sales tax
- Obtain Chicago business license (if applicable)
- Apply for professional/industry licenses
Related Illinois Guides
Sales Tax Registration — Registration instructions.
IDOR Contact — Get help with tax questions.