How to Start an LLC in Illinois
Forming an LLC in Illinois costs $150 in state filing fees, and processing typically takes 5–10 business days online. Plan on the recurring Annual Report: $75 per year. Keepify prepares and files everything for free, so you pay only the state.
| State filing fee | $150 (one-time) |
|---|---|
| Recurring state fee | $75 per year |
| Processing time | 5–10 business days online |
| Where you file | Illinois Secretary of State |
| Keepify service fee | Free* |
Fees last reviewed July 2026. Always confirm current fees with the Illinois Secretary of State.
5 steps to form your Illinois LLC
- 1
Choose a business name
Your name must be unique in Illinois and include "LLC" or "Limited Liability Company." Use the checker above to see if yours is available.
- 2
Appoint a registered agent
Every Illinois LLC needs a registered agent with a physical in-state address to receive legal mail. Keepify's virtual address service keeps your home address private.
- 3
File the Articles of Organization
This is the official formation document, filed with the Illinois Secretary of State for $150. With Keepify, we prepare and submit it for you at no service charge.
- 4
Get your EIN
The IRS issues Employer Identification Numbers for free. You need one to open a business bank account and hire anyone. We walk you through it after your LLC is approved.
- 5
Stay compliant
File the Annual Report ($75 per year) on time to keep your LLC in good standing. Keepify's compliance calendar reminds you automatically.