Illinois Articles of Organization (LLC – Form LLC-5.5)
Overview
The Illinois Articles of Organization is the official document required to establish a Limited Liability Company (LLC) in Illinois. Filing this form with the Illinois Secretary of State officially registers your LLC as a legal business entity, providing personal liability protection to members and establishing your business under Illinois law.
Filing Details
- Filing Fee: $150
- Agency: Illinois Secretary of State
- Form: Articles of Organization (Form LLC-5.5)
- Online Filing: https://www.ilsos.gov
- PDF Download: Available on SigPen
Required Information
To complete the Articles of Organization, you will need:
- LLC Name: Must include "Limited Liability Company," "LLC," or "L.L.C." and be distinguishable from existing entities registered in Illinois
- Principal Office Address: The main business address for the LLC
- Registered Agent: A person or entity authorized to receive legal documents on behalf of the LLC, with a physical address in Illinois
- Management Structure: Whether the LLC will be member-managed or manager-managed
- Organizer Information: Name and signature of the person filing the formation documents
- Effective Date: When the LLC should officially begin (can be the filing date or a future date)
Step-by-Step Filing Instructions
Step 1: Choose and Verify Your LLC Name
Search the Illinois Secretary of State's business database to ensure your desired LLC name is available. The name must be distinguishable from other registered business entities in Illinois.
Step 2: Designate a Registered Agent
Select a registered agent with a physical street address in Illinois. This can be a member of the LLC, a professional registered agent service, or any adult resident of the state.
Step 3: Complete the Articles of Organization
Download the official form from this page and fill in all required fields. You can also file online through the Illinois Secretary of State's website.
Step 4: Submit and Pay Filing Fee
Submit your completed Articles of Organization along with the $150 filing fee. You can file by mail or online.
Step 5: Receive Confirmation
Once processed, you will receive official confirmation that your LLC has been formed in Illinois. Processing times vary — online filings are typically faster than paper submissions.
After Formation
Once your Illinois LLC is approved, complete these important next steps:
- Obtain an EIN: Apply for a free Employer Identification Number from the IRS (Form SS-4)
- Open a Business Bank Account: Keep personal and business finances separate
- Create an Operating Agreement: Document member rights, responsibilities, and profit sharing
- Register for State Taxes: Obtain any required state tax registrations or permits
- Obtain Business Licenses: Check local requirements for city or county business licenses
- Maintain Compliance: File required annual reports and pay any ongoing fees
Important Deadlines
- Annual Report: Check Illinois requirements for annual or biennial reporting
- Tax Filings: Federal and state tax deadlines apply based on your LLC's tax classification
- Registered Agent: Must maintain a current registered agent at all times
Frequently Asked Questions
How long does it take to form an LLC in Illinois?
Processing times vary. Online filings are typically processed within a few business days, while paper filings may take 1–2 weeks or longer.
Can one person form an LLC in Illinois?
Yes. Single-member LLCs are permitted and common in Illinois.
Do I need an operating agreement?
While not always legally required, an operating agreement is strongly recommended for all LLCs. It defines member rights, management structure, and operating procedures.
Can I be my own registered agent?
Yes, as long as you have a physical street address in Illinois and are available during normal business hours to accept legal documents.
State Resources