Filing Fees by State › Illinois
Illinois: the three state filings for an LLC (2026)
Filing a Illinois LLC costs $150 (Articles of Organization (LLC-5.5), Illinois Secretary of State). The periodic report is $75 every year and changing the registered agent is $25. Mainstay Filing, our best overall pick, files all three.
- Official sources, checked October 20, 2026
The Illinois filings
| Filing | Form or document | State fee | When |
|---|---|---|---|
| Formation | Articles of Organization (LLC-5.5) | $150 | Once, to create the LLC |
| Report | Limited Liability Company Annual Report | $75 | Before the first day of the entity's anniversary month each year |
| Change of agent | Agent change form | $25 | When you switch agents |
Mainstay Filing
Our rating: 4.9 out of 5
$199 / year, same at renewal
- LLC formation, prepared and filed
- Registered agent, all year
- EIN application (with an SSN or ITIN)
- Annual report filed every year it is due where the state requires one
- Compliance reminders and stored documents
Price from the Mainstay Filing pricing and FAQ pages, checked October 21, 2026. State fees are passed through at cost and shown before you pay.
Questions
How much is the Illinois LLC filing fee?
$150 to file the Articles of Organization (LLC-5.5) with the Illinois Secretary of State.
What does the Illinois LLC report cost?
Limited Liability Company Annual Report, every year: $75.
What does it cost to change a registered agent in Illinois?
The state charges $25 to file the change.
Is the Illinois fee high or low?
$150 ranks number 37 from the cheapest of 50 (the national median is $100).
Sources
- 805 ILCS 180/5-5 (articles of organization); 805 ILCS 180/5-1 (filing with Secretary of State) (multira state research spine): www.ilga.gov/legislation/ilcs/fulltext.asp?DocName=080501800K5-5, checked August 12, 2026
- Illinois formation fee: Filing fee, official source read 2026-10-01: www.ilga.gov/legislation/ilcs/fulltext.asp?DocName=080501800K50-10, checked October 1, 2026
- Illinois formation fee: Filing fee, official source read 2026-10-01: www.ilsos.gov/publications/business-services/llc.html, checked October 1, 2026
- Illinois Secretary of State, Department of Business Services, Limited Liability Division (multira state research spine): www.ilsos.gov/departments/business-services/annual-reports/llc-instructions.html, checked August 12, 2026
- Illinois Secretary of State, Department of Business Services, Limited Liability Division (multira state research spine): www.ilsos.gov/departments/business-services/annual-reports.html, checked August 12, 2026
- Illinois registered agent statute (805 ILCS 180/1-35): www.ilga.gov/legislation/ilcs/fulltext.asp?DocName=080501800K1-35, checked October 20, 2026
- Illinois Secretary of State: www.ilsos.gov/, checked October 20, 2026