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:

1. Obtain an EIN: Apply for a free Employer Identification Number from the IRS (Form SS-4)
2. Open a Business Bank Account: Keep personal and business finances separate
3. Create an Operating Agreement: Document member rights, responsibilities, and profit sharing
4. Register for State Taxes: Obtain any required state tax registrations or permits
5. Obtain Business Licenses: Check local requirements for city or county business licenses
6. 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

• Illinois Secretary of State: https://www.ilsos.gov
• Business Name Search: Check name availability on the Illinois Secretary of State's website
• IRS EIN Application: Apply online at irs.gov