Everything you need to know about getting a business license in Chicago — explained simply. No jargon.
Dept. of Business Affairs and Consumer Protection (BACP)
Website: https://chicago.gov/bacp
Chicago has one of the most complex business licensing systems in the U.S. Most businesses need a specific license type — not just a generic "business license." Processing takes longer than most cities. Budget 4–6 weeks.
Visit https://chicago.gov/bacp — look for "Business License," "Business Tax Certificate," or "Business Registration."
Most cities now have online applications. Some still use paper forms. Have your business name, address, EIN or SSN, and estimated revenue ready.
You'll need: business name, business address, what you do, your Social Security Number or EIN, and sometimes your estimated annual revenue.
Chicago's typical fee is $250–$750+ (type-based). Pay online by credit card or by check if applying by mail.
Takes approximately 2–6 weeks. If you have a physical location that customers visit, post your license where it's visible.
A city license doesn't cover everything. See the Illinois state guide for additional state-level requirements.
Most Chicago business licenses need to be renewed every year. Missing renewal usually means a fine. Set a calendar reminder now.
⚠️ Heads up: This site explains business licensing in plain English. Not legal advice. Rules change. Always verify with your actual city or state office. Affiliate disclosure.