LLC Operating Agreement in Illinois
Federal & State Law Editorial TeamLast reviewed: April 2026
Illinois Requirements
- Operating agreement is not required but is strongly recommended
- Articles of Organization filed with the Secretary of State ($150)
- Annual report due before the first day of the LLC's anniversary month ($75)
- Personal property replacement income tax of 1.5% applies to LLCs
- Must designate a registered agent with an Illinois address
Filing Location
Secretary of State (Articles of Organization only)
Filing Fee
Articles of Organization: $150
Statute Reference
How to Complete This Form
- 1Determine the management structure of the LLC (member-managed or manager-managed).
- 2Define each member's ownership percentage and capital contributions.
- 3Outline how profits and losses will be allocated among members.
- 4Establish voting rights, decision-making procedures, and meeting requirements.
- 5Include provisions for adding or removing members and transferring membership interests.
- 6Address dissolution procedures and what happens if a member leaves or passes away.
- 7Have all members sign the agreement and retain copies with the company records.
Download Form Template
Download a template for the LLC Operating Agreement customized with Illinois-specific requirements and instructions.
LLC Operating Agreement in Other States
Other Forms in Illinois
When to Talk to a Lawyer
- Your LLC has multiple members with different contribution levels or management roles.
- You need to address complex tax elections, intellectual property ownership, or liability protection issues.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.