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Illinois Registered Agent

Written by:

Edited by:

Reviewed by: Daniel Javor

Published on June 30, 2022

Updated on August 24, 2022

Illinois Registered Agent

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Illinois Registered Agent

If you’re thinking of forming a limited liability company (LLC), you should know that in Illinois you will need a registered agent to handle all of your official paperwork. The registered agent, which is also required for corporations, LLPs, and nonprofits, is a specific role that involves several key considerations and restrictions, as detailed below. 

What Is a Registered Agent?

A registered agent, also known as an agent for service of process, is a person or business authorized to accept legal, tax, and financial documents on behalf of your business. Some states do not require a registered agent, but in Illinois your LLC needs a registered agent.

Illinois’s Registered Agent Requirements

In Illinois, you can be your own registered agent for your LLC, or it can be another member of the LLC, an outside individual, or a qualified business service. 

In Illinois, the requirements to be a registered agent are:

  • Must be 18 years or older
  • Must be a resident of Illinois 
  • Must have an Illinois physical street address 
  • Be personally available during normal business hours 
  • If the agent is a business entity, it’s registered to operate in the state
illinois state flag of the united states of america

Responsibilities of a Registered Agent

Essentially, the purpose of a registered agent is to ensure compliance with state laws and to make sure all official matters are handled in a timely manner. Having one person or entity handle state documents helps ensure nothing is missed, helping avoid potential potholes.

Documents that the agent may receive include:

  • Tax forms and documents
  • Government correspondence
  • Legal documents
  • Summons documents in case of a lawsuit

Advantages of a Registered Agent Service   

A registered agent service is a professional service that will handle official correspondence and documents for your business. Registered agents ensure that all official correspondence is handled on time and keep copies of documents for you. They also keep track of deadlines and send reminders of things you need to file, such as tax forms and annual reports.

A registered agent service will help keep you in compliance with the law and save you time by keeping track of key documents and filing deadlines. This also frees you up to focus on growing your business. The agency will also offer support if problems or questions come up.

Using an agency enables you to have flexible hours. If you are your own registered agent, you must be personally available from 8 AM to 5 PM at your registered agent address. If you use an agency, they are available during those hours and you are free to focus on growing your business.

Choose Your Registered Agent Service

If you use a national agency, they will help you form an LLC or corporation in another state or multiple states where you do not have residency. A good agency also offers a level of privacy, as you would never be served with a summons at your business in front of customers or employees. 

You need a service that has an office in Illinois, but you may want to choose a national service so you have the flexibility to form LLCs in other states. Other than that, you should choose a service that offers:

  • Compliance management, to send reminders of key deadlines 
  • Document copying and digital storage so you can access documents online
  • Availability during the required hours, with prompt customer service
  • Service in all 50 states and US territories

How Much Does a Registered Agent Service Cost?

Costs for a registered agent service range from $50 a year up to $300 or more. You can choose from several online options, such as ZenBusiness and LegalZoom.

How to Register Your Registered Agent in Illinois

In Illinois, you’re required to identify your business’s registered agent within your articles of organization. When your file is processed, the entity you specified will officially be your LLC’s registered agent.

Appoint Register Agent for Illinois LLC online form

The easiest way to file your business’s articles of organization is by using Illinois’ online business filing service– you don’t even need to have an account! Simply follow the guided prompts and fill in your LLC’s information. 

Illinois Registered Agent Name and Address

If you’d rather file by mail, be sure to note that you need to mail in duplicates of your completed form. You’ll need to include your LLC’s articles of organization with your original signature on it, and the second form can be another original or simply a copy of the first.  

LLC Articles of Organization for Illinois

Download and complete the articles of organization form and send your duplicates and the $150 filing fee to the address listed below. 

Illinois Secretary of State
Department of Business Services
Limited Liability Division
501 S. Second St., Rm. 351
Howlett Building
Springfield, IL 62756

Phone: 217.524.8008

Hours: Monday through Friday from 8:00 AM – 4:30 PM

Once you have chosen your registered agent, whether it’s you, another member, or a professional service, you do not need to register the agent with the state. Instead, in Illinois your registered agent just needs to be named on your articles of organization, along with their address and other relevant information, and the state will record this as your LLC’s official registered agent. 


In Illinois, having a registered agent is legally mandated. If you would prefer not to deal with the added hassle yourself, you might consider hiring a professional service, which will ensure your LLC’s compliance with all state regulations and renewal requirements and simplify expansion beyond your state. 

Keep in mind that registered agents provide valuable, and necessary, services for your business.