LLC Formation Costs › Illinois
How Much Does an LLC Cost in Illinois? Year One and Every Year After
Starting a Illinois LLC costs $150 to file. After that, Limited Liability Company Annual Report, every year, $75. The state side over three years is $300.
- Official sources, checked October 20, 2026
Every cost, itemised
| Cost | When | Amount | Detail |
|---|---|---|---|
| State filing fee | Once | $150 | Articles of Organization (LLC-5.5), Illinois Secretary of State |
| Limited Liability Company Annual Report | Yearly | $75 | Limited Liability Company Annual Report, every year, $75 |
| Registered agent | Yearly | from $149 | Required. An Illinois resident, or a business authorized to do business in Illinois. The LLC cannot act as its own agent. |
| Expedite | Optional | Not published | Per the state’s own pages |
| EIN | Once | $0 | Issued free by the IRS |
Over time
| Horizon | State side | With Mainstay Filing |
|---|---|---|
| 1 year | $150 | $349 |
| 3 years | $300 | $897 |
| 5 years | $450 | $1,445 |
With Mainstay Filing: $199 a year plus the Illinois fee at cost, covering the formation, registered agent, EIN application and annual report. It renews at the same $199.
Mainstay Filing
Our rating: 4.9 out of 5
$199 / year + $150 state fee
Questions
How much does it cost to start an LLC in Illinois?
$150 to file. Over three years the state side is $300; with Mainstay Filing it is $897.
What is the yearly cost of a Illinois LLC after the first year?
Limited Liability Company Annual Report, every year, $75.
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