Cook County General Business License: Who Needs One
The Cook County General Business License covers unincorporated areas only. See who needs it, the $40 fee and what foreign-owned and cross-border owners check.
Last reviewed October 27, 2026 · 3 min read · General information, not legal advice
General information only, not legal advice. CPA Tax Payroll and Accounting Corp is a CPA firm, not a law firm. Laws change: confirm with the official source or a licensed attorney before you act. Read the full notice.
The Cook County General Business License is a two-year license issued by the Cook County Department of Revenue to businesses in unincorporated Cook County, the parts of the county outside every city and village. This page is for owners with Canadian or Indian ties, and the rule stops at that boundary: a business in Aurora, Naperville or anywhere else in Kane, DuPage, Will or Kendall county is outside it. Start with the Kane, DuPage, Will or Kendall guide.
Slide show: The license in seven slides
What it is
A County license from the Department of Revenue for businesses in unincorporated Cook County.
Who it covers
Businesses with a fixed place, real property or regular stock there. Those required to hold another County business license are exempt.
The rule
Apply under oath on the County's License Portal and display the license at the premises.
The number
$40 for two years, covering March 1, 2025 to February 28, 2027.
The timing
The County asked for payment by March 1, 2025. Its FAQ says processing can take up to 30 to 45 days.
The penalty
Fines of $100, $250 and $500 apply once a violation is determined, daily after notice. Closure is possible.
The tip
Check the address first. The portal links an address-check tool.
Who needs a Cook County General Business License?
Situation
Does the license apply?
Fixed place, real property or regular stock in unincorporated Cook County
Yes, unless exempt
Required to hold another County business license, or exempt by law
No; a Certificate of Exemption is available
In a Cook city or village, or Chicago
No; local codes apply
In DuPage, Kane, Will or Kendall county, including Aurora
What it means for a foreign-owned or cross-border business
Situation
What the law says
What to check
Owner lives in Canada or India
The application asks for the Social Security or tax ID number and home address of a sole proprietor or the three largest individual owners, plus any individual owning 5 percent or more
Our sources do not say what an owner without a Social Security number provides; ask Revenue and see our SSN and ITIN guide
Foreign parent with a U.S. subsidiary leasing space in unincorporated Cook
The tests look at the business's place, property or stock there
Which entity holds the lease and signs
Owner with earlier businesses elsewhere
The five-year wage-law statement covers the FLSA, Illinois and comparable state wage laws
Earlier findings; a County Board exception exists
First U.S. employees
Applicants certify wages meet the County minimum wage ordinance