Do you need a business license in Illinois? What kind? Where do you get it? Here's everything — in plain English.
Chicago has one of the more complex local licensing systems — many business types need specific Chicago licenses on top of general registration. Outside Chicago, requirements are much simpler.
Go directly to your city or county. Most business licenses in Illinois are issued locally.
Search "[your city] business license Illinois" and look for the official government website (.gov). That's where you apply.
If you're doing business under a name that isn't your own legal name, you may need a DBA (Doing Business As) registration — usually at the county clerk's office.
Illinois requires businesses that sell taxable products to register with the state tax authority. This is separate from your business license.
Most business licenses renew annually. Set a calendar reminder now — late renewals usually come with a fine.
⚠️ 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.