Form an LLC in Illinois

Everything you need to know about starting your Illinois LLC in 2025

Above Avg
$150
State Filing Fee
Slow
10-15 business days
Processing Time
$400
Total Year 1 Cost
$250
Annual Report Fee
None
$0
Franchise Tax
$280/yr
$1,400
5 Year Total Cost

Illinois LLC Requirements at a Glance

Filing Requirements

  • Articles of Organization filing
  • Unique business name
  • Registered agent with Illinois address
  • State filing fee: $150

Ongoing Compliance

  • Annual fee: $250
  • Maintain registered agent
  • File annual reports

How to Form an LLC in Illinois: Step-by-Step

1

Choose Your LLC Name

Select a unique name that complies with Illinois naming requirements. Your LLC name must:

  • Be distinguishable from other business entities in Illinois
  • Include "Limited Liability Company," "LLC," or "L.L.C."
  • Not include restricted words without proper licensing
2

Appoint a Registered Agent

Designate a registered agent with a physical address in Illinois. This can be yourself (if you have a Illinois address), another individual, or a registered agent service. The agent must be available during business hours to receive legal documents.

3

File Articles of Organization

Submit your Articles of Organization to the Illinois Secretary of State along with the $150 filing fee. Processing typically takes 10-15 business days, or you can expedite for $100 additional to receive approval in 1-2 days.

4

Create an Operating Agreement

While not always legally required, an operating agreement is crucial for outlining ownership percentages, member responsibilities, and operating procedures. This document helps prevent disputes and protects your limited liability status.

5

Obtain an EIN

Apply for an Employer Identification Number (EIN) from the IRS. This free federal tax ID is required for hiring employees, opening business bank accounts, and filing taxes. You can apply online and receive your EIN immediately.

6

Open a Business Bank Account

Separate your personal and business finances by opening a dedicated business bank account. This maintains your LLC's limited liability protection and simplifies accounting and taxes.

Best LLC Services for Illinois Businesses

These formation services have proven track records helping Illinois entrepreneurs start their LLCs quickly and correctly.

1
ZenBusiness logo

ZenBusiness

Best Overall
★★★★★ 4.9/5
$0 + state fees

Entrepreneurs who want comprehensive support and compliance tools at an affordable price

ZenBusiness stands out as our top pick for LLC formation services thanks to its unbeatable combination of value, features, and support. With formation starting at $0 plus state fees, you can rest easy with their worry-free compliance service, award-winning customer support, and 100% accuracy guarantee. The Pro and Premium packages add even more value with 1-day processing, an employer ID number, operating agreement, and services to get your business online like domain name registration, AI business website builder, and more.

Strengths:

Starter package is $0 plus state fees Registered agent and compliance services Free worry-free compliance for 1 year Fast 1-day processing time available 100% accuracy guarantee Award-winning customer support

Limitations:

Some features require upgraded plans More expensive Registered Agent service
2
Bizee logo

Bizee

Fastest Formation
★★★★★ 4.6/5
$0 + state fees

Budget-conscious startups needing fast formation

Bizee (formerly Incfile) offers lightning-fast LLC formation with their $0 package. They're perfect for entrepreneurs who need to form their LLC quickly and affordably. With same-day processing in many states and a year of free registered agent service, Bizee provides exceptional value for basic LLC formation needs.

Strengths:

$0 basic formation package Same-day processing available Free registered agent for first year Compliance alerts included Dashboard for document management Free business tools and templates

Limitations:

Operating agreement not included in basic package Limited customer support hours
3
Tailor Brands logo

Tailor Brands

Best for Branding
★★★★☆ 4.3/5
$49 + state fees

Creative businesses wanting formation plus branding

Tailor Brands combines LLC formation with comprehensive branding tools. Their unique approach includes AI-powered logo design, website creation, and marketing materials. Perfect for creative entrepreneurs who want to establish their brand identity alongside their legal structure.

Strengths:

Includes logo design and branding Website builder included Business card designs Mobile app available Operating agreement included EIN service included

Limitations:

No rush processing available Monthly subscription required Customer service via chat/email only

Why Form an LLC in Illinois?

Illinois offers several advantages for LLC formation, including a business-friendly environment, established legal precedents, and access to major markets. The state's LLC laws provide flexibility in management structure and strong asset protection for members.

Illinois LLC Tax Benefits

LLCs in Illinois benefit from pass-through taxation, meaning the business itself doesn't pay income tax. Instead, profits and losses pass through to members who report them on their personal tax returns. This avoids the double taxation that corporations face.

Business Licenses and Permits

After forming your LLC, you may need additional licenses and permits depending on your business type and location within Illinois. Common requirements include local business licenses, professional licenses for regulated industries, and sales tax permits for retail businesses.

Illinois LLC FAQs

How much does it cost to form an LLC in Illinois?

The state filing fee is $150. Additional costs may include registered agent service ($50-$300/year), EIN obtainment (free from IRS, $70-$200 through services), and operating agreement preparation ($0-$200). Annual maintenance costs include a $250 annual fee.

How long does it take to form an LLC in Illinois?

Standard processing takes 10-15 business days. Expedited processing is available for an additional $100 and reduces processing time to 1-2 days. Formation services may add 1-2 days for document preparation.

Do I need a Illinois address to form an LLC?

You don't need to live in Illinois, but your LLC must have a registered agent with a physical address in the state. Many formation services provide registered agent service, allowing you to form a Illinois LLC from anywhere.

Can I be my own registered agent in Illinois?

Yes, if you have a physical address in Illinois and are available during business hours. However, using a professional service ensures privacy, compliance, and that important documents are never missed.

Ready to Start Your Illinois LLC?

Join thousands of entrepreneurs who've successfully formed their Illinois LLCs. Get started today with our recommended formation services.