Illinois LLC Articles of Organization | PDF Download

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When forming an LLC business structure, you first need to file the Articles of Organization with the Illinois Secretary of State. This is a legal document that officially launches your new LLC into existence. After filing, the business can obtain an Employer Identification Number (EIN), state tax number, open a bank account, and register for business licenses.

Related: Step-by-step guide to forming an LLC in Illinois

Some of the required information needed to complete the Articles of Organization in Illinois includes:

  • Your new company’s name. When filling out this information be sure to include the entity designator at the end of the business name. The allowed designator can be Limited Liability Company, L.L.C., or LLC.If you haven’t verified already, be sure to do a name search with the Secretary of State to be sure the LLC name is available.
  • Address of the principal place of business. This may be, but is not required to be, the actual place of the business to the physical street address, or the main location where the business records are kept. A physical address must be used as P.O. Boxes are not acceptable.
  • The effective start date for your LLC. While you cannot back-date the formation date of your LLC, you can specify when you want the business entity to become effective at a time 60 days in the future.
  • Name and address of your company’s registered agent. A registered agent is a party authorized to receive and accept service of process on behalf of your LLC. You may act as your registered agent or you may authorize an individual outside of the LLC or another company authorized by your state to act as a registered agent. The registered agent must use a physical street address in Illinois.
  • Business purpose statement. Enter a general statement of purpose of what the LLC’s business activities will be. If the LLC will provide professional services, those services will need to be listed.  A Professional LLC (PLLC) is only for businesses that are required to get licensed in the state.
  • The duration of your LLC. Most will select perpetual, however, if there is a predetermined date the LLC will close, enter the date here.  This is more common for investment-related entities.
  • Management of the LLC. In the Articles of Organization, you will need to indicate whether the management structure is either member-managed or manager-managed.


The filing fee for the Articles of Organization is $150.

Mail completed form and payment to:
Illinois Secretary of State
Department of Business Services
Limited Liability Division
501 S. Second St., Rm. 351
Springfield, IL 62756


In addition to the Articles of Organization, many LLCs will want to draft an operating agreement is an internal document outlining the governing structure and operating guidelines of the entity along with the responsibilities of the members.

Related – When does an LLC need an Operating Agreement?



Download the Illinois LLC Articles of Organization (Form LLC-5.5) from the Illinois Secretary of State

Illinois LLC Articles of Organization PDF

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