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Formation Rated

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

Entry · Illinois

Illinois Registered Agent.co Review (2026)

From the Formation Rated editorial team
Line one for Illinois Registered Agent.co: $99 a year for Illinois registered agent service, with the same $99 at renewal. The plan includes an in-state street address for the registered office and online scans of papers served on the company. Line two: forming an Illinois LLC costs $199 plus the state fee, first year of agent service included. Line three: foreign registration in Illinois, $199 plus the state fee. Rating note: it suits an Illinois-only company that wants a fixed agent amount and files its own Limited Liability Company Annual Report.
Rating note

Illinois Registered Agent.co: rated for an Illinois-only companies

$99 a year, the same at renewal

Our score9.3out of 10

A bare-bones Illinois agent: flat amount, fixed renewal.

What you get

  • A registered office with an in-state street address
  • Each paper served on the company is scanned into your account

Pros

  • $99 a year, level on renewal
  • A lower yearly line than Mainstay Filing's agent
  • Also sells LLC formation and foreign registration
  • First agent year included when it forms your LLC

Trade-offs

  • Leaves the Limited Liability Company Annual Report line to you
  • EIN application is a separate $99 line
  • Illinois only; other states need their own agent
Visit Illinois Registered Agent.coPartner link. We may earn money if you buy.

Line items on the $99 plan

$99 a year makes Illinois Registered Agent.co the Illinois registered agent. The company receives an in-state street address as its registered office, and papers served there are scanned and posted to your account. Renewal carries over at $99.

Forming an Illinois LLC: the Illinois Registered Agent.co amounts

Formation through Illinois Registered Agent.co is $199, with Illinois's filing fee on a separate line. Year one of registered agent service is included; the agent line after that is $99 a year. An EIN application adds $99, though the IRS itself issues EINs free.

Illinois then expects the Limited Liability Company Annual Report every year, due before the first day of the entity's anniversary month, at $75; Illinois Registered Agent.co leaves that line to you.

Foreign registration in Illinois: the Illinois Registered Agent.co amounts

Registering an outside company in Illinois through Illinois Registered Agent.co is $199, plus the state's $150. Year one of registered agent service is included. You provide certificate of Good Standing or Existence, issued inside 60 days.

Illinois Registered Agent.co against Mainstay Filing

Agent service only: $297 over three years at Illinois Registered Agent.co, $447 at Mainstay Filing, a gap of $150. Mainstay Filing sells a single agent plan that applies in all fifty states and scans the first three government mailings a year free. Mainstay Filing: $199 a year for formation plus the annual report filing. Illinois Registered Agent.co: $397 over three years for formation and the agent, report filing excluded. IL Registered Agent.org is the other Illinois agent on the books; it charges the same $99 a year, and the two rate closely.

Illinois Registered Agent.co: your questions

What are Illinois Registered Agent.co's amounts?

$99 a year for registered agent service, and the same on renewal. Formation is $199 plus the Illinois filing fee.

Does Illinois Registered Agent.co file my yearly report?

No. The Illinois Limited Liability Company Annual Report is outside its published amounts, so it is your filing.

Does Illinois Registered Agent.co rate well as a registered agent for an Illinois LLC?

Yes, if the company is staying in Illinois and wants a level agent amount. Its average score across our Illinois pages is 9.3.

What does Illinois Registered Agent.co include?

The Illinois registered office address, and online scans of papers served on the company.

Does Illinois Registered Agent.co register outside companies in Illinois?

Yes, at $199 plus Illinois's fee, with a year of agent service included.

Keep reading

Source lines

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