The 5 Best Registered Agents in Illinois (2026)

Full transcript

0:00 The short answer

Dan The 5 best registered agents in Illinois in 2026 are Mainstay Filing, Northwest Registered Agent, IL Registered Agent.org, Bizee, and Illinois Registered Agent.co.

Maya Good to have you with us on The Business Formation Podcast. Illinois, then. What's the one thing a founder there should know first?

Dan That the annual report will not change your agent. Illinois treats them as two separate filings, and switching agents is its own form with a $25 state fee.

0:32 Two filings, not one

Maya Wait, so I can file my annual report and still have the old agent?

Dan Yes. The Secretary of State's instructions say that if you need to change the registered agent or office, you file the annual report showing no changes, and then change the agent separately, online or on Form LLC-1.36/1.37.

Maya Which is the form for the change.

Dan Right, the Statement of Change of Registered Agent and Registered Office. It's $25, or $50 if you want it expedited. It has to say the registered office and the agent's business office will be identical, and that the members or managers authorized the change.

Maya And it takes effect when?

Dan When the Secretary of State files it.

Maya Before we go deeper, I'm Maya, and this is Dan.

Dan Thanks, Maya. On to the five.

1:23 Mainstay Filing, the top pick

Maya Where do we start?

Dan With Mainstay Filing: $149 a year for the agent, and $149 again when it renews.

Maya Spell out what's included.

Dan Its Illinois address is the one on the public record in place of yours. Papers served on your company are scanned and uploaded the same business day, with no fee. Your first three government mailings each year are scanned free.

Maya What about that LLC-1.36/1.37 form we just talked about?

Dan Mainstay files it for you. The $25 state fee is passed through at cost.

Maya And the one honest drawback?

Dan Price, if price is all you care about. Two companies below charge $99, which is $50 less per year. Mainstay's answer is that the number doesn't move and the filing is handled.

2:17 Northwest Registered Agent

Maya Next up?

Dan Northwest Registered Agent at $125 a year. Its pricing page says that number hasn't changed in 20 years, and it includes free scans of up to 10 pieces of regular business mail annually.

Maya So what trips people up?

Dan The annual report enrollment. When you sign up, you're put into its report filing service for $100 plus state fees per filing, unless you cancel. Its page says you can add or cancel any time.

Maya In Illinois, what would that look like?

Dan The state's report fee is $75, so with the service on, one year's filing would carry the $100 service charge as well as that $75. Turn it off and you're at $125 for the agent only.

3:06 IL Registered Agent.org

Maya Number three, please.

Dan IL Registered Agent.org, $99 a year, unchanged at renewal. You get a physical Illinois address, scanned legal mail and compliance alerts.

Maya And to move to them?

Dan Only the $25 state fee on top of a $0 fee from their side. The catch, as you'd guess, is that annual report filing is a separate service.

Maya What's the three-year picture?

Dan $297, against Mainstay's $447. That's the $150 difference we mentioned.

3:42 Bizee

Maya Number four is the one with the free offer.

Dan Bizee, which used to be Incfile. Its registered agent is free for year one with any formation package. After that, $149 a year, renewing automatically.

Maya Do you have to form with them?

Dan You do. The page ties the free year to a formation order. If your Illinois LLC is already formed, you're looking at $149 from day one.

4:09 Illinois Registered Agent.co

Maya And five?

Dan Illinois Registered Agent.co, at $99 flat. A registered address on file, scanned legal documents and reminders ahead of state deadlines.

Maya Anything different from the other $99 company?

Dan Not in what the listing says, including the catch: annual report filing costs extra. Choosing between them comes down to the dashboard and the support you get.

4:33 Illinois dates and dollars

Maya Let's talk about the report itself. What's due when?

Dan The Illinois annual report, Form LLC-50.1, is $75. It's due before the first day of your anniversary month. If it's still missing on the first day of the second month after that, there's a $100 penalty.

Maya So a miss costs more than the report.

Dan More than the report itself, yes. And forming in the first place was $150 on Form LLC-5.5, where the agent and the registered office are items on the form.

Maya Let me run the totals for a first year with Mainstay.

Dan $150 plus $75 plus $149 is $374.

Maya Good to know, and that's before any optional extras.

Dan Right, and the numbers are all from the state and the company pages, not estimates.

5:29 Who can serve, and the address rule

Maya Can I be my own agent in Illinois?

Dan If you're an individual who lives in Illinois, yes. The statute says an individual resident of the state, or another person authorized to transact business here. What you can't do is have the LLC act as its own agent. And an entity that serves as agent has to be registered with the Secretary of State.

Maya What does the address have to look like?

Dan An Illinois street address, with the number and the street or road, matching the agent's business address. A PO box with a plus-four ZIP may be added to that physical address, but it can't replace it.

Maya Does anyone have to be there at certain hours?

Dan I don't see a business-hours rule in the statute or on the Secretary of State pages we checked.

6:17 Online or paper

Maya If I'm switching myself, where do I actually file?

Dan The Secretary of State has an online option for changing an LLC's agent or address. On paper, it goes to the Limited Liability Division at 501 South Second Street, Room 351, in Springfield.

Maya And is the $50 expedite worth it?

Dan That depends on whether you're about to miss a deadline. If your old agent has resigned and the 60 days are running, it might be. Otherwise the standard $25 is the usual route.

Maya Do I need my members to sign off?

Dan The statement must say the change was authorized by the members or managers, so yes, someone with that authority has to approve it.

6:58 If your agent resigns

Maya What if my agent gives notice?

Dan The agent files Form LLC-1.35, which costs $5, and mails you a copy at least 10 days before filing, by registered or certified mail. The resignation takes effect no sooner than 30 days after filing.

Maya And then I have to find someone.

Dan A new agent has to be on record within 60 days of the resignation notice.

Maya What happens if I don't?

Dan The Secretary of State is appointed as your agent for service of process. And failing to maintain an agent is a ground for dissolution: after a notice of delinquency, you get 60 days to correct it. Annual report defaults get 120.

7:42 Picking one

Maya How do I choose, with all that in mind?

Dan Look at what you'd actually be doing each year. Two different filings, an agent price that stays put, and nothing added that you didn't ask for.

Maya Which brings us to the winner.

Dan Mainstay Filing, our pick for Illinois, at $149 a year.

8:01 The five, back to back

Maya Say them all one more time.

Dan One, Mainstay Filing: $149 a year, same at renewal. Two, Northwest: $125, with the report enrollment to cancel. Three, IL Registered Agent.org: $99 flat. Four, Bizee: free the first year with a formation order, then $149. Five, Illinois Registered Agent.co: $99 flat.

Maya The links are in the show notes. Thanks for listening to The Business Formation Podcast.