Sole Proprietorship & General Partnership

Description: When a business name is different from the owner(s) full legal name(s), the Illinois Assumed Name Act requires sole proprietorships and general partnerships to register with their local county clerk‘s office for registration under the Assumed Name Act. Sole proprietors must have a Federal Employer Identification Number if they pay wages to one or more employees, or file any pension or excise tax returns including those of alcohol, tobacco or firearms.

Source: State of Illinois Business Portal
Date Last Revisted: 12/04/09