Almost every business is required to obtain some kind of license or permit. Sometimes the license is obtained from the State of Illinois or the county. More often it is required by the municipality in which the business is located. The best way to research this is to check with your city or village clerk.
If the business is a retail store, a web-based service, a consulting firm or other low risk operation, it is relatively easy to obtain the required license. However, if it is a restaurant and lounge, day care center, transportation for senior citizens or manufacturing operation, the premises or equipment may have to be inspected before the license is issued. Many new business owners are frustrated because they are already paying rent on the space but cannot open because they do not have their licenses.
Also keep in mind that most communities require that home-based businesses be licensed. Regulations regarding hours of operation and visitors to the home may present problems for the business owner.