Illinois · Registered agent · updated 2026

Registered Agent in Illinois

Illinois requires every LLC and corporation to keep a registered agent with a physical Illinois address. Incofile provides one for $119/year — free for the first year when we form your company — with same-day document scanning and compliance reminders.

Illinois at a glance

Registered agent requiredYes — LLCs & corporations
Address rulePhysical Illinois street address, no PO box
AvailabilityBusiness hours, in person
Filed withIllinois Secretary of State, Department of Business Services
Incofile service$119/yr · first year free with formation

What Illinois requires from a registered agent

Name a registered agent with a physical street address in Illinois (not a PO box) who can accept legal papers during business hours. If you live outside Illinois or want privacy, Incofile can act as your agent.

Registered agent: Required; must have a physical street address in Illinois

Should you be your own registered agent in Illinois?

Be your own agent

  • No annual fee
  • Your name and street address go on the public record
  • You must be at that Illinois address in business hours, every working day
  • Moving means a state filing to update the address
  • Not possible if you live outside Illinois or outside the US

Use Incofile

  • $119/year — first year free with any formation package
  • Your home address stays private
  • Documents scanned and emailed the same day they arrive
  • Annual report and compliance reminders for Illinois
  • Works for out-of-state and international owners

How Incofile's Illinois registered agent service works

  1. We are listed on your filing

    When Incofile forms your Illinois company, our Illinois address is entered as the registered office — no extra form, no gap. Existing companies can switch to us at any time.

  2. Mail and legal papers come to us

    Service of process, state notices and compliance mail are received at our Illinois address during business hours, as the law requires.

  3. You get it the same day

    Every document is scanned and uploaded to your Incofile client portal with an email alert, so nothing sits in a mailbox.

  4. We remind you before deadlines

    Your portal shows upcoming Illinois filings — including the annual report — with reminders ahead of time.

Changing your registered agent in Illinois

If your current agent is retiring, raising prices or simply unresponsive, you can switch. File a change-of-agent form with the Illinois Secretary of State, Department of Business Services, pay any state fee, and make sure the new agent has consented. Incofile's change of registered agent service handles the filing for $119, which also includes a full year of our Illinois registered agent service.

Illinois LLC facts

State filing fee$150 (Articles of Organization, Form LLC-5.5)
Document filedArticles of Organization (Form LLC-5.5)
Standard approval timeAbout 10 business days online · longer by mail
Expedited option+$100 state fee for faster processing
Annual report$75 a year, due before the first day of your anniversary month
Late penalty$100 once the report is about 60 days late, plus $100 for each further year
Name reservation (optional)$25
State income taxOwners pay Illinois's flat 4.95% personal income tax on their share of profit

Figures checked against the Illinois Secretary of State, Department of Business Services, September 2026. State fees change — always confirm the current amount before filing.

Get a Illinois registered agent today

Form your Illinois LLC from $0 + state fee and the first year of registered agent service is on us. Already formed? Switch to Incofile in minutes.

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Illinois registered agent — frequently asked questions

Do I need a registered agent for my Illinois LLC?

Yes. Illinois requires every LLC and corporation to name a registered agent on its formation documents and to keep one continuously. The agent accepts service of process (lawsuits) and official notices from the Illinois Secretary of State, Department of Business Services on the company's behalf.

Can I be my own registered agent in Illinois?

You can if you are an adult with a physical street address in Illinois (not a PO box) and you are available there during normal business hours. Many owners prefer a service so their home address stays off the public record, nothing is missed while they travel, and the address does not have to change when they move.

How much does a registered agent cost in Illinois?

Incofile's Illinois registered agent service is $119 per year, and the first year is included free when you form your company with any Incofile package. Acting as your own agent costs nothing in fees but puts your address on the public record.

What happens if my Illinois LLC has no registered agent?

The state can refuse filings, mark the company as not in good standing and eventually administratively dissolve it. Worse, a lawsuit can proceed without you ever being properly notified. Keeping a registered agent on file is one of the cheapest forms of protection a company has.

Can I use a registered agent address as my business address?

A registered agent address is for legal and state mail only. If you need a business street address for banking, invoices or your website, add a virtual business address — Incofile offers one alongside registered agent service.

How do I change my registered agent in Illinois?

File a change-of-registered-agent form with the Illinois Secretary of State, Department of Business Services and pay any state fee. Incofile can prepare and file it for you ($119, which includes a year of our registered agent service) so there is no gap in coverage.