How much does forming an LLC cost in this state?
Filing costs $150. A service on top of that costs $199 in year one.
State fees for years one through three stack up to $300. peek at ilsos.gov, confirmed October 2026
Which form is inside the filing, and where does it go?
The Illinois Secretary of State receives the Articles of Organization (Form LLC-5.5), and once it is approved the company exists.
The law underneath: 805 ILCS 180/5-5. peek at ilsos.gov, confirmed October 2026
Is a registered agent required?
Every LLC must name a registered agent with an in-state street address.
An Illinois resident, or a business authorized to do business in Illinois. The LLC cannot act as its own agent.
peek at ilga.gov, confirmed October 2026
What comes after the LLC is formed?
Underneath it all, one filing repeats: the Limited Liability Company Annual Report, every year, at $75 each time. The state phrases its deadline like this: before the first day of the entity's anniversary month.
File late and the state adds $100.
peek at ilsos.gov, confirmed October 2026
Do I have to pay a service at all?
Nothing stops you. Without a service, your three-year bill is the state's $300.
That $397 to $597 over three years is the price of handing off the paperwork and the agent role.
What put number one on top?
On total across three years (34%), Illinois Registered Agent.co comes out ahead.
63% of the score comes from total across three years and what is inside the price.
Three years at Illinois Registered Agent.co cost $397, which is $200 below Mainstay Filing.
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