Understanding LLC Costs in Illinois: A Complete Breakdown

Curious about how much does an LLC cost in Illinois? Launching a new venture or expanding into the state requires a clear understanding of the full range of expenses to stay compliant and on budget.

Illinois has a mix of fixed and variable costs, from formation filings to annual reports and local business licenses. While not the cheapest state to form in, its central location and infrastructure appeal to many. This guide breaks down the full LLC cost in Illinois to help you plan confidently.

Total Cost to Start an LLC in Illinois

The cost to start an LLC in Illinois involves a handful of upfront expenses, some of which are state-mandated and non-negotiable. The following is a streamlined summary of these costs, capturing all essential startup expenses:

  • Articles of Organization filing fee: $150 one-time
  • Registered agent service: $130–$240/year (free if self-designated)
  • EIN: Free from the IRS
  • Local/state business licenses: $100–$1,000 depending on jurisdiction and industry
  • Initial annual report (due the following year): $75

To accurately answer the question “How much does an LLC cost in Illinois?”, it is key to understanding these expenses. If you’re comparing your options or expanding internationally, these figures are also relevant when considering LLC Company Registration in USA.

LLC Filing Fee: Certificate of Formation in Illinois

Forming your LLC in Illinois requires submitting the Articles of Organization with the state. The cost to file an LLC in Illinois is a one‑time $150 fee, payable whether filing online, by mail, or in person. Expedited processing is available for an additional $100, reducing turnaround to about one day.

This primary state fee is the central component of the LLC cost in Illinois.

Cost of LLC Name Registration in Illinois

Securing your business name is optional and typically does not contribute to the cost to form an LLC in Illinois. You can simply enter your desired name when filing Articles of Organization.

However, if you want to reserve it separately, Illinois allows a name reservation via Form LLC‑1.15 for $25, valid for 90 days, with $50 expedited processing if submitted in person.

This optional fee contributes to the broader LLC cost in Illinois.

Registered Agent Fee in Illinois

Engaging a registered agent is mandatory in Illinois for all LLCs. You can act as your own agent at $0, provided you maintain a physical Illinois address and remain available during business hours. Using a professional service typically costs $130–$240 per year, with many firms averaging around $200/year.

This wide range in price factors directly into the broader LLC cost in Illinois.

Operating Agreement Cost

Though Illinois doesn’t mandate an operating agreement, most LLCs can prepare one internally at no cost. If you opt for professional legal help, drafting typically ranges from $325 to $1,550 depending on scope and complexity, with averages around $750 for a flat-fee service.

While optional, the operating agreement adds structural clarity and legal protection. Keep in mind that this optional expense significantly adds to the total LLC cost in Illinois.

EIN Cost for LLC in Illinois

Applying for an EIN is completely free through the IRS. This includes online, fax, mail, or phone methods (especially for international applicants). If you choose a third-party provider to apply for your EIN, expect to pay service fees, typically ranging from $50 to $300.

Commenda helps guide you through the EIN application process with expert advice, ensuring everything is submitted accurately and efficiently.

Local and State Business Licenses in Illinois

Businesses in Illinois must complete a free Certificate of Registration with the Illinois Department of Revenue. This is mandatory and provided at no cost via MyTaxIllinois or Form REG‑1.

License requirements and fees vary significantly at the local level. Here are some examples:

  • Cook County (unincorporated areas): General Business License costs $40 for two years.
  • City of Glenview: General license $40 (no renewal required); food or daycare license $100+ annually.
  • Highwood: Annual business license fee $50, waived for qualifying non‑profits.

These variations mean your actual LLC cost in Illinois for licenses can go up to several hundred dollars, depending on where you operate.

Professional Licensing Fees in Illinois

Operating an LLC in regulated fields often means paying additional licensing fees through state or local agencies. Common sectors and fees include:

  • General Contractors (e.g., Chicago): Class A license costs $2,000/year; Class B–E range from $1,000 to $300, depending on project size.
  • State‑regulated professions (e.g., healthcare, real estate, accounting): Some professions (e.g., medical corporations or PLLCs) may register multiple locations, each requiring an additional $50 fee per site.

These professional licensing costs add to the overall LLC cost in Illinois and should be budgeted when operating in regulated industries.

DBA (Doing Business As) Cost in Illinois

Using a DBA is required if your LLC operates under a name different from its legal name. Most LLCs register a DBA via the Illinois Secretary of State rather than the county. 

If registering with a county clerk (less common for LLCs), fees vary:

  • DuPage County charges a $10 filing fee for an Assumed Business Name Certificate
  • Other counties (e.g., Henry, Marshall) charge between $20–$25 plus newspaper publication costs.

Because county-level DBAs are optional and county-specific, they are not mandatory. These optional filings may contribute toward the overall LLC cost in Illinois, depending on your jurisdiction.

Annual Report or Compliance Filing Fees

Illinois LLCs must file a $75 annual report (Form LLC‑50.1) each year with the Secretary of State, due before the first day of the anniversary month of formation. You can file online or by mail. If your filing is more than 60 days late, Illinois imposes a $100 penalty, and further delay can lead to administrative dissolution.

This recurring requirement is a key part of the annual cost of an LLC in Illinois.

State Franchise Taxes and Business Taxes

Illinois LLCs are generally exempt from franchise tax unless taxed as corporations. Until December 31, 2025, corporations must pay a 0.1% franchise tax on paid-in capital (first $100,000 exempt; $25 minimum). 

Additionally, LLCs taxed as partnerships owe a 1.5% Personal Property Replacement Tax (PPRT), while corporations pay 2.5%. All members must pay 4.95% state income tax on their share of profits.

These ongoing obligations significantly contribute to the LLC cost in Illinois.

Business Insurance Costs for LLCs in Illinois

Illinois LLCs often carry multiple insurance policies, with premiums varying based on your business size, industry, and risk level. Here’s a concise breakdown:

  • General liability insurance: around $946/year (~$79/month) for Illinois small LLCs.
  • Workers’ compensation insurance: Averages $81/month (~$970/year) for businesses with under $300K payroll.
  • Professional liability (E&O): Typically $76/month (~$912/year) for service-based LLCs

Premiums depend on factors like industry, claims history, and payroll. Workers’ comp is mandatory for most employers. Planning for insurance early helps you build a realistic view of your total LLC cost in Illinois.

Foreign LLC Registration in Illinois

Are you considering how to move your LLC or corporation to another State? Out-of-state businesses must complete the Application for Admission to Transact Business (Form LLC‑45.5) and submit a Certificate of Good Standing from their home state.

The base filing fee is $150, with an additional $100 for expedited same-day processing in Chicago or Springfield. The full foreign LLC setup, including agent costs, typically ranges between $200 – $300.

You can follow similar steps when expanding into Illinois from another country. For example, if you’re considering how to register a company in the USA from UAE, the process is not too different.

These expenses form the central portion of the foreign registration element in your overall LLC cost in Illinois.

Optional LLC Costs and Services

Businesses forming an LLC in Illinois often opt for additional services to streamline setup or improve legal preparedness. Here are a few to consider:

  • Expedited filing: The Secretary of State charges an extra $100 to process Articles of Organization or foreign registration within 24 hours.
  • Certified copies: Official document copies cost $25, with expedited copy requests at $50.
  • Certificate of Good Standing: $25 standard, expedited for $20–$45 depending on method.
  • Domain setup and legal consultations: Costs vary based on the provider.

These optional services can add flexibility or compliance assurance, but also increase your overall LLC cost in Illinois.

LLC Cost Comparison: Illinois vs Other States

The LLC cost in Illinois totals $225 in the first year ($150 Articles of Organization + $75 annual report), then $75 annually thereafter. Here’s how that compares to other popular LLC formation states, so you can figure out the best State to start an LLC in:

  • New York: $200 Articles of Organization + $9 biennial statement fee every two years (plus significant publication costs).
  • Washington: $200 to file online ($180 by mail), plus a $10 initial report due in 120 days. Annual reports cost $70 per year.
  • Florida: $100 filing fee + $138.75 annual report fee.

Compared to states with high ongoing or publication fees like New York and Washington, Illinois offers moderate upfront costs and predictable, modest annual fees, making it a cost-effective state for LLC formation.

Looking for alternatives with different legal or tax advantages? Check out our blog on Form a Nevada Business: 2025 Tax & Legal Guide to see how Nevada compares for asset protection, privacy, and tax strategy.

Common Budgeting Mistakes When Starting an LLC in Illinois

Many entrepreneurs underestimate the full scope of expenses when budgeting for an Illinois LLC. These missteps can impact your financial planning and long-term sustainability:

  • Skipping insurance premiums such as workers’ compensation, liability, and professional coverage
  • Forgetting ongoing annual renewals, like the $75 state report and local business licenses
  • Neglecting quarterly tax estimates, leading to unexpected liabilities and interest penalties
  • Setting overly optimistic revenue forecasts or failing to maintain a contingency buffer (typically recommended at 10–20%)

Building this foresight into your planning gives you a cleaner view of the true LLC cost in Illinois.

Form Your Illinois LLC with Commenda

Launching your LLC in Illinois doesn’t have to be complicated. Commenda offers a streamlined, one-click solution for forming your business, applying for your EIN, staying compliant with state filings, and managing renewals, all tailored to Illinois regulations. 

Our platform ensures every step is accurate, fast, and fully supported by experts. With Commenda, you get reliable tools and guidance to stay compliant and grow with confidence.

Need help navigating LLC cost in Illinois? Book a free demo with Commenda today and simplify formation from day one.

FAQs: LLC Costs in Illinois

Q. What is the cheapest way to start an LLC in Illinois?

Using Commenda’s self-service tools, you can file online yourself and act as your own registered agent, helping you avoid third-party service fees.

Q. Can I form an LLC in Illinois without using a lawyer or service?

Yes, Illinois allows individuals to file directly via the Secretary of State’s online portal.

Q. What happens if I don’t pay my LLC’s annual fees or taxes in Illinois?

Late filings incur a $100 penalty, and prolonged noncompliance can lead to administrative dissolution.

Q. Can I write off LLC formation and maintenance costs on my taxes in Illinois?

Yes, most business formation and operational expenses are generally tax-deductible.

Q. How long does it take to form an LLC in Illinois, and does faster processing cost more?

Standard online processing takes 5–10 business days; expedited service costs $100 and processes within 24 hours.

Q. Is there a cost difference between a single-member and a multi-member LLC in Illinois?

No, the state charges a flat $150 formation fee regardless of the number of members.

Q. Do I need to renew my LLC every year in Illinois, and how much does it cost?

Yes, the annual report fee is $75 and is due each year by the LLC’s formation anniversary.

Q. What are the penalties for filing LLC paperwork late in Illinois?

Failing to file on time results in a $100 penalty and may lead to administrative dissolution if ignored.

Q. How can Commenda help reduce the overall cost and risk of starting an LLC in Illinois?

Commenda bundles formation, EIN setup, and compliance monitoring in one platform, cutting time, errors, and surprise fees.