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Review · Illinois

Illinois Registered Agent.co Review (2026)

With Illinois Registered Agent.co, Illinois registered agent service is $99 a year, the same $99 at renewal. You get an in-state street address for your registered office, and legal papers served on the company are scanned to your account. Want to start an Illinois LLC with it? That's $199 plus the state fee, and your first year of agent service is included. It also registers outside companies in Illinois, for $199 plus the state fee. The short version: it works well for a company that stays in Illinois, wants one agent price and doesn't mind filing its own Limited Liability Company Annual Report.

By the LLC Review Desk editorial team

Our pick

Illinois Registered Agent.co: a good fit for an Illinois-only companies

$99 per year, flat

Our score

9.0out of 10

9.0 out of 10

Straightforward Illinois agent service: one price, and it holds when you renew.

In the price

  • A street address in the state for your registered office
  • The company's served papers show up in your account as scans

What we like

  • $99 a year and it stays flat
  • Cheaper per year than Mainstay Filing's agent-only plan
  • Also does LLC formation and foreign registration
  • Your first agent year is free when you form your LLC with them

Trade-offs

  • Doesn't cover the Limited Liability Company Annual Report; that stays with you
  • The EIN application costs $99 extra
  • Illinois only; for other states you need another agent
Visit Illinois Registered Agent.coPartner link. We may earn money if you buy.

What you get for $99 a year

For $99 a year, Illinois Registered Agent.co will be your Illinois registered agent. You get a registered office address in the state, and anything served on the company is scanned and waiting in your online account. When you renew, it's still $99.

Starting an Illinois LLC with Illinois Registered Agent.co

Illinois Registered Agent.co will file your formation paperwork for $199, and you pay the state's filing fee separately. Your first year as registered agent is included, and after that the agent is $99 a year. If you want them to apply for your EIN, that's $99 more, though the IRS gives EINs out free.

Illinois Registered Agent.co doesn't file the Limited Liability Company Annual Report, so that one is yours. In Illinois it comes every year, by before the first day of the entity's anniversary month, and the state asks $75.

Bringing a company from another state into Illinois with Illinois Registered Agent.co

Registration with Illinois is $199 through Illinois Registered Agent.co, plus the state's $150. Your first year as registered agent comes with it. You'll need to provide certificate of Good Standing or Existence, no more than 60 days old.

How Illinois Registered Agent.co compares with Mainstay Filing and our other picks

If you only want the agent, three years cost $297 with Illinois Registered Agent.co and $447 with Mainstay Filing, a difference of $150. Mainstay Filing has one agent plan that works in every state and scans the first three government mailings a year free. Mainstay Filing's package is $199 a year and includes the annual report; forming through Illinois Registered Agent.co comes to $397 across three years, agent included, but report filing isn't part of it. IL Registered Agent.org, the other Illinois agent we picked, charges the same $99 a year, so the two end up close.

Your questions about Illinois Registered Agent.co

How much does Illinois Registered Agent.co cost?

As your registered agent, it charges $99 a year and keeps that price when you renew. To form an LLC in Illinois, add $199 plus the state's filing fee.

Will Illinois Registered Agent.co send in my yearly report?

No. The Illinois Limited Liability Company Annual Report isn't in its published prices, so that one's yours.

Would Illinois Registered Agent.co work well as the registered agent for an Illinois LLC?

Yes, if your company is in Illinois and you like paying one steady price for the agent. Its average score across our Illinois pages is 9.0.

What do I get with Illinois Registered Agent.co?

A registered office address in Illinois, plus scans of any papers served on the company, sent to your account.

Will Illinois Registered Agent.co handle foreign registration for my company in Illinois?

Yes. The price is $199 plus Illinois's fee, and your first year as agent comes along.

Read next

Where we got the numbers

  1. Illinois registered agent statute, double-checked October 2026
  2. Illinois Secretary of State, Department of Business Services, Limited Liability Division, double-checked August 2026
  3. Illinois Secretary of State, Department of Business Services, Limited Liability Division, double-checked August 2026
  4. 805 ILCS 180/5-5, double-checked August 2026
  5. Illinois formation fee: Filing fee, official source, double-checked October 2026
  6. Illinois formation fee: Filing fee, official source, double-checked October 2026
  7. Form LLC-45.5, Application for Admission, double-checked October 2026
  8. Form LLC-45.40, Application for Withdrawal, double-checked October 2026
  9. 805 ILCS 180/45-45, consequences of transacting business without admission, double-checked October 2026
  10. 805 ILCS 180/45-47, activities that are not transacting business, double-checked October 2026
  11. 805 ILCS 180/45-45, double-checked November 2026
  12. Source: Illinois Registered Agent.co, home, pricing and service pages, as of November 12, 2026
  13. Source: Mainstay Filing, Illinois service pages, as of November 12, 2026