Real-time costs, processing times, and formation guides for all 50 states.
Starting a business shouldn't be a guessing game. Every state has unique fees, hidden annual costs, and varying processing speeds. We've indexed official Secretary of State data across the U.S. to give you a transparent, side-by-side comparison. Select your state below to see exactly what it costs to launch your LLC in 2026.
Illinois
Articles of Organization
$
150
To form an LLC in Illinois, you must file Articles of Organization with the Secretary of State. This process involves selecting a unique business name that includes an appropriate designator like LLC and appointing a registered agent with a physical Illinois address. The state requires a $150 filing fee for this application, which can be submitted online or by mail. Once approved, your business becomes a legally recognized entity.
Maintaining your LLC requires filing an annual report to keep your business in good standing. This report updates the state on your current business address and management information. It is due every year by the first day of your LLC’s anniversary month. The filing fee for the annual report is $75. Filing can be completed through the Secretary of State’s website or via mail to ensure continued legal compliance and avoid late penalties.
Start Your LLCDisclosure: The National LLC Filing Fee Index is an independent review site. We may receive compensation from the companies whose services we review (such as ZenBusiness). This compensation helps us maintain this free resource for small business owners. Our reviews are based on our own research and professional judgment.
