How to Form an LLC in Illinois — Step-by-Step Guide
Complete guide to forming a Limited Liability Company (LLC) in Illinois. Learn about filing fees, processing times, name requirements, registered agents, and ongoing compliance obligations.
Form Your Illinois LLC Today
Professional LLC formation services handle Illinois LLC formation from start to finish. Includes name availability check, Articles of Organization filing, registered agent service, and more.
Start Your Illinois LLC →Illinois LLC Filing: Requirements at a Glance
Forming an LLC in Illinois requires filing Articles of Organization with the Illinois Secretary of State. Your business name must be unique and include a designator such as "LLC" or "Limited Liability Company."
After formation, Illinois LLCs must maintain a registered agent with a physical address in the state, file annual reports (if required), and comply with Illinois tax obligations including any franchise or privilege taxes.
LLC Filing Topics for Illinois Businesses
Explore our complete guides for every aspect of Illinois LLC formation, compliance, and management.
Annual Report Filing in Illinois
Most states require LLCs to file an annual report. Professional services handle annual report filing so you stay complia...
Best LLC Services in Illinois
Compare the top LLC formation services for your budget and needs. Find the best LLC service for your budget and needs....
Business Formation in Illinois
Start your business right. Compare business structures, formation services, and state requirements for LLCs, corporation...
DBA Filing in Illinois
File a Doing Business As (DBA) name for your business. Operate under a different name while keeping your LLC's legal pro...
Dissolve an LLC in Illinois
Close your LLC properly by filing articles of dissolution with the state. Professional services handle dissolution filin...
EIN Number in Illinois
An Employer Identification Number (EIN) is your LLC's federal tax ID. Professional services can obtain your EIN from the...
Foreign LLC Registration in Illinois
Register your existing LLC to do business in another state. Professional services handle foreign qualification filings a...
Incorporation in Illinois
Incorporate your business as a C Corporation or S Corporation. Professional services handle incorporation filings, bylaw...
LLC Business License in Illinois
Learn what business licenses and permits your LLC needs at the federal, state, and local level. Professional services ca...
LLC Cost in Illinois
The cost to form an LLC varies by state, from $40 in Kentucky to $500 in Massachusetts. Get a breakdown of all filing fe...
LLC Filing in Illinois
File your LLC formation documents with the state. Our partners handle document preparation, filing, and follow-up so not...
LLC Formation in Illinois
Form a Limited Liability Company (LLC) to protect your personal assets, establish credibility, and gain tax flexibility....
Frequently Asked Questions
How much does it cost to form an LLC in Illinois?
LLC filing fees in Illinois vary depending on the type of LLC and any expedited processing options you select. Contact the Illinois Secretary of State or use an LLC formation service for current pricing.
How long does it take to get an LLC in Illinois?
Standard LLC processing in Illinois varies. Expedited service is often available for an additional fee. LLC formation services can help accelerate the process.
Can I form an Illinois LLC online?
Yes, Illinois accepts online LLC filings through the Secretary of State website. Professional LLC formation services can also handle the entire process online for you.
Do I need a registered agent in Illinois?
Yes, Illinois requires all LLCs to maintain a registered agent with a physical address in the state. Professional registered agent services are available in Illinois starting at around $100-$300 per year.