Illinois LLC Cost (2026): Real Filing Fees, Annual Reports & Year-1 Totals
The real cost of forming an LLC in Illinois in 2026, with each dollar figure linked to an authoritative source. This page is the cost-table-only variant of our full Illinois LLC formation guide; if you also need the 6-step walkthrough, FAQ, and tool comparisons, start there.
Year-1 cost table
| Item | Cost | Source |
|---|---|---|
| Articles of Organization (Form LLC-5.5) | $150 | cite |
| Annual Report | $75/yr | cite |
| Registered agent (Northwest) | $125/yr | cite |
| Expedited 24-hour filing (optional) | $100 | cite |
| Year-1 total (standard) | $350 | cite |
Two cost drivers underneath the table: (a one-time fee per filing) and (an ongoing yearly service). Both are line-itemed above.
Annual filing deadline
Annual Report due in the LLC's anniversary month each year — $75
Authoritative sources
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Want the full picture?
- Full Illinois LLC formation guide — 6 steps, FAQ, tool comparisons
- Northwest Registered Agent — $125/yr for Illinois
- Mercury — free business checking
Other state costs
Skip the research — let AthenAI form your Illinois LLCUpdated 2026-05-11. Source quality: human_reviewed. AthenAI is not a law firm; this page is informational.