Illinois LLC cost
Forming an LLC in Illinois costs $150 in state fees in year one, then about $75 a year to stay in good standing.
Forming a Illinois LLC
You file Articles of Organization (Form LLC-5.5) with the Illinois Secretary of State, Department of Business Services. The state fee is $150. See the official fee.
File it yourself with the state →
Every year after
- Annual Report: $75, filed every year. Due: Before the first day of the LLC's anniversary month each year.
- First one: Before the first day of the anniversary month in the year after formation.
- If you're late: $100 penalty if not filed by the first day of the second month after the anniversary month, plus $100 for each further year delinquent; continued failure leads to administrative dissolution (reinstatement $200 plus delinquent fees and penalties).
- Official report page
Worth knowing
- Forming an LLC or corporation costs $150; a series LLC costs $400.
- The $75 annual report is due before the first day of the anniversary month each year.
- Starting in 2025, the first $10,000 of corporate franchise tax liability is exempt, so most small corporations owe no franchise tax.
- Assumed names are filed with the Secretary of State on a 5-year cycle.
Registered agent
Illinois requires a registered agent. Registered agent must have an Illinois street address (no P.O. box); an individual agent must be an Illinois resident. You can serve as your own agent if you have a qualifying address; paid services usually charge a yearly fee.
| Other filings | State fee | Notes |
|---|---|---|
| Name reservation | $25 | 90 days |
| DBA / assumed name (state) | $150 | Assumed name for an LLC or corporation is filed with the Secretary of State; $150 for a 5-year period, prorated by year of adoption (as low as $30 in years ending in 4 or 9); renewal $150. Sole proprietors file with the county clerk. |
| Expedited processing | $100 | $100 for 24-hour expedited handling of LLC Articles of Organization (paper filings expedited only in person in Springfield or Chicago); other documents have different expedite fees |
| Foreign LLC registration | $150 | Application for Admission to Transact Business (Form LLC-45.5) |
Fees last checked 2026-10-20 against Illinois Secretary of State, Department of Business Services. States change fees — confirm on the linked page before you file.
Thinking about forming somewhere else?
If you operate in Illinois, an out-of-state LLC also has to register here as a foreign entity. See both costs side by side: