Resident Agent Info

Illinois Resident Agent Information

Where to file, who to call and what the state expects of the agent who receives legal papers for a Illinois business entity.

The Illinois filing office.

Every business entity formed or registered in Illinois must appoint a resident agent and keep the appointment on file with this office. The statute, the forms and the fees are the office's; confirm them there.

Street address

Corporation Division
501 S. 2nd St., Ste 328
Springfield, IL 62756

Mailing address

Same as the street address.

Phone and website

Voice
(312) 793-3380
Website
cyberdriveillinois.com/services/business.html

Office hours

Monday through Friday
8:00 AM - 4:30 PM
Central Time (CT)

Office details as published in our directory; offices move and renumber, so check the website before you mail or visit.

What a resident agent must do in Illinois

The basics are the same here as in every other state. The agent must:

  • keep a physical street address in Illinois (not a post office box) that appears on the entity's public record;
  • be available at that address during normal business hours to accept service of process;
  • accept lawsuits, subpoenas and official notices from the state on the entity's behalf and forward them promptly;
  • stay on the record: if the agent moves, resigns or is replaced, a change must be filed with the office above.

An entity that lets its appointment lapse falls out of compliance and can lose its good standing. The requirements page explains the rules in more detail, and what is a resident agent explains the role itself.

Other states.