Foreign LLC by State › Illinois
Illinois foreign LLC requirements
Illinois asks a foreign LLC for Form LLC-45.5, Application for Admission to Transact Business and a $150 fee; it also requires a good-standing certificate from the home state.
Requirements at a glance
| Requirement | Illinois |
|---|---|
| Application | Form LLC-45.5, Application for Admission to Transact Business |
| Filed with | Illinois Secretary of State, Department of Business Services, Limited Liability Division |
| Fee | $150 |
| Good-standing certificate | Required |
| Certificate age limit | 60 days |
| Registered agent | A registered agent with a Illinois street address |
| Yearly filing | Annual report (Illinois Secretary of State), $75 (due: within the 60 days before your anniversary month) |
Good standing
Certificate of Good Standing or Existence, no older than 60 days. Order it from the state where the LLC was formed, then file it with the Illinois application. 36 states require one.
Best 3 Foreign Registration Services in Illinois (2026)
| # | Service | Service fee | Illinois fee | Agent |
|---|---|---|---|---|
| 1 | Mainstay Filing | $199 | $150 | Year one included, then $149/yr |
| 2 | IL Registered Agent.org | $199 | $150 | Year one included, then $99/yr |
| 3 | Illinois Registered Agent.co | $199 | $150 | Year one included, then $99/yr |
Service prices read from each provider’s Illinois page on October 28, 2026. The state fee is the official figure below and is paid to the Illinois Secretary of State, Department of Business Services, Limited Liability Division.
Every year after
Annual report (Illinois Secretary of State), $75 (due: within the 60 days before your anniversary month). Keep the registered agent current as well; each service above includes the first year.
Illinois questions
Does Illinois require a good-standing certificate?
Yes. Certificate of Good Standing or Existence, no older than 60 days.
What does a foreign LLC file every year in Illinois?
Annual report (Illinois Secretary of State), $75 (due: within the 60 days before your anniversary month).
What is the fee to register a foreign LLC in Illinois?
$150. A $199 filing service adds to that.
Sources
- Illinois Secretary of State, LLC forms: www.ilsos.gov/publications/business-services/llc.html, checked October 8, 2026
- Form LLC-45.5, Application for Admission: www.ilsos.gov/content/dam/publications/pdf_publications/llc455.pdf, checked October 8, 2026
- Form LLC-45.40, Application for Withdrawal: www.ilsos.gov/content/dam/publications/pdf_publications/llc4540.pdf, checked October 8, 2026
- 805 ILCS 180/45-45, consequences of transacting business without admission: www.ilga.gov/legislation/ilcs/fulltext.asp?DocName=080501800K45-45, checked October 8, 2026
- 805 ILCS 180/45-47, activities that are not transacting business: www.ilga.gov/legislation/ilcs/fulltext.asp?DocName=080501800K45-47, checked October 8, 2026