Illinois Business Guide
How to Start a Business in Illinois
Forming an LLC in Illinois costs $150 in filing fees and typically takes 2-3 weeks. This guide walks you through every step.
LLC Filing Fee
$150
Processing Time
2-3 weeks
Registered Agent Required
Yes
Business License
Required
Annual Report Fee
$75
Step-by-Step Formation Process
1. Choose a Business Name
Choose a unique name that complies with Illinois naming requirements. Check name availability on the Illinois Secretary of State website. Illinois Secretary of State website.
2. File Articles of Organization
File your LLC's Articles of Organization with the Illinois Secretary of State. The filing fee is $150 and processing takes 2-3 weeks.
3. Appoint a Registered Agent
Illinois requires a registered agent with a physical address in the state to accept legal documents on behalf of your LLC.
4. Obtain an EIN
Get an Employer Identification Number (EIN) from the IRS for tax purposes. This is free and can be done online.
5. Register for State Taxes
Register with the Illinois Department of Revenue for state tax purposes. You may need a sales tax permit if selling products.
6. File Annual Reports
Illinois requires an annual report with a fee of $$75. The report is filed with the Secretary of State.
Secure Your Brand
After forming your Illinois LLC, check that your business name is available as a domain name and across social media platforms.
Illinois Business Formation FAQ
How much does it cost to start an LLC in Illinois?▼
The filing fee is $150, plus any registered agent fees. Processing takes approximately 2-3 weeks.
Do I need a registered agent in Illinois?▼
Yes, Illinois requires all LLCs to have a registered agent with a physical address in the state.
Do I need a business license in Illinois?▼
Yes, most businesses in Illinois need a business license. Requirements vary by city and county.