Here's what forming an LLC in Illinois actually involves — the fees, the timeline, the ongoing obligations, and the official registry link, so you can file with confidence.
Illinois LLC at a glance
| State filing fee | $150 |
|---|---|
| Processing time | Processing times change — check current times on the official registry |
| Annual report / franchise | Annual report — $75; due before the first day of the LLC's anniversary month. |
| Registered agent required? | Yes — physical Illinois address required |
| Official registry | Illinois Secretary of State business search → |
Steps to form an LLC in Illinois
- Name your LLC and check availability in the Illinois registry.
- Appoint a registered agent with a physical address in Illinois.
- File the state’s LLC formation document using the responsible office’s instructions, and check the applicable fee and any additional filing requirements.
- Check the EIN requirements and choose an eligible IRS application route (see the EIN guide).
- Stay compliant — track any Illinois annual report and franchise obligations.
Paid filing assistance is optional. Compare the selected package, government charges, included services and renewal terms before purchasing. Form in Illinois via Northwest
Budget and filing checks for Illinois
- Formation source — recorded check .
- Recurring requirement source — recorded check .
Compare the source-qualified Illinois cost row with your own first-year and recurring budget. Then check licenses and permits for the actual business activity. A filing fee is not a complete operating-cost quote.
Frequently asked questions
How much does it cost to form an LLC in Illinois?
The Illinois state filing fee is $150, and the ongoing obligation is Annual report — $75; due before the first day of the LLC's anniversary month.
How long does it take to form an LLC in Illinois?
Processing time in Illinois varies, and expedited options may be available. Check current processing times on the official registry before you file.
Do I need a registered agent in Illinois?
Yes. An LLC must maintain a registered agent who meets Illinois's requirements. Hiring a commercial service is optional if you or another eligible agent can meet the state's address, availability and consent requirements. Check the official registry before appointing an agent.