How to Start an LLC in Illinois

Step 1: Complete an Illinois LLC Search and Choose a Unique Business Name

You’ll need a distinctive and original name for your LLC that’s not used by any other business in the state, whether in Chicago or Champaign. If you’re having trouble coming up with a name, try using our Business Name Generator to get ideas. You'll need to follow a few naming rules, which you can read about in detail on the Illinois Business Names page.

Once you’ve chosen a name, you’ll need to make sure it’s available in Illinois. To find out whether another company is using your chosen business name, use our tool to do a business name search. You can also conduct a name search on the Illinois Secretary of State's website.

Step 2: Provide an Official Business Address for your LLC

Whether it's an office building, a home (if the company is run from a residence), or any other physical location, every LLC in Illinois must have a designated street address. It can be outside the state, but it cannot be a P.O. box.

Step 3: Assign a Registered Agent

Someone who receives official legal and tax correspondence and is responsible for filing reports with the Illinois Secretary of State is called a Registered Agent. Every LLC in Illinois must have a Registered Agent.

This position can be filled by you, another manager in the business or a dedicated Registered Agent service. If your Illinois Registered Agent is a person, they must have a physical street address in Illinois, and they’re required to be present during business hours to receive important documents on behalf of your company. In Illinois, you appoint your Registered Agent when you file your Articles of Organization.

All of Bizee’s packages include Registered Agent service. It’s free for the first year and just $119 per year afterward. You can also log in to our easy-to-use online dashboard where you can easily view any document your Registered Agent has received on behalf of your business.

Step 4: File Your Articles of Organization

After you have all the information for your Illinois LLC, the next step is to file a form with the Illinois Secretary of State to create your Articles of Organization. Filing it officially creates your LLC.

You can file your Illinois Articles of Organization through the Illinois Secretary of State's online filing system, by mailing a form to the Office of the Secretary of State or by having Bizee do it on your behalf. The Illinois LLC filing fee is $154.

You’re only required to file your Articles of Organization once upon formation, but you will need to file an annual report every year thereafter. Bizee can either remind you to do it, or we can do it for you.

Note: In Illinois, Articles of Organization and Articles of Incorporation are not the same thing. The former is for LLCs and the latter is for corporations.

Step 5: Get an Employer Identification Number (EIN) from the Internal Revenue Service

You'll need an EIN to identify your business to the IRS. You use this number when filing and paying taxes or when submitting payroll information and payments for your employees. An EIN is also required to open a business bank account. You can obtain one directly from the IRS, or Bizee can get one for you as part of the Illinois LLC formation process.

Step 6: Create an Operating Agreement

A kind of "instruction manual" that details how you'll run your business, an LLC Operating Agreement outlines how business decisions will be made, how the business is set up among members and what will happen if a member leaves the company.

Some states require that a company have an Operating Agreement in place. It isn’t legally required in Illinois, but it’s a good idea to have one anyway to protect your business.

Other Illinois LLC Types

Series LLC

In Illinois, you have the option to set up a Series LLC. This is a specialized entity designed to allow you to manage multiple separate LLCs under one master LLC. This is a useful option if you don’t want to set up a separate LLC for every individual business you run.

To apply for a Series LLC, Illinois requires that you complete a Certificate of Designation form and pay a filing fee of $50.

Decide whether an Illinois Series LLC is right for your business.

Professional LLC

Some states, including Illinois, allow certain businesses to form Professional Limited Liability Companies (PLLCs). An Illinois Professional LLC will typically require members to be licensed, and impose other specialized requirements as well.

But an Illinois PLLC isn't always necessary. The state also allows standard LLCs to be formed to provide professional services, such as the practice of medicine or dentistry, provided all the members are licensed.

Learn more about PLLC vs. LLC and which one is right for your business.

Foreign LLC

If your business is already operating in another state and expanding to Illinois—or vice versa—you’ll need to form a Foreign LLC.

Learn more about Illinois Foreign LLC registration.

Helpful Resources from the State of Illinois

More Information in This Guide

You’ll find plenty more insight and guidance on the other pages of this guide, including:

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