Online LLC Formation in Illinois: What the Filing Doesn't Cover

Online formation services make it easy to complete Articles of Organization for an Illinois limited liability company (LLC). Two facts tend to get lost in the sales pitch.

The state charges its own fee. Under the Illinois Limited Liability Company Act, filing Articles of Organization costs $150, or $400 for an LLC that can establish a series (805 ILCS 180/50-10). A formation service's charges come on top of that, and online filings carry a payment processor fee.

Finishing the form is also different from approval. The Illinois Secretary of State lists standard processing at 10 business days, or 24 hours for $250. You receive confirmation by email after the Department of Business Services examines and approves the filing. The same page recommends that legal counsel review your documents before you submit them.

The approved filing creates the company. It doesn't record who owns what, who makes decisions, or what happens when an owner leaves or dies. Illinois law answers those questions if you don't, and its default answers may not match the deal you thought you made.

When filing on your own is reasonable

Self-filing fits a narrow set of businesses. You're the only owner. You have no investors and no near-term plan to bring one in. Your articles need no special purpose or provisions, which is also a condition of using the state's online system.

Even a sole owner has one decision to put in writing. If you're the only member and you die, the company has no members. Under Section 35-1(a)(3), an LLC that goes 180 consecutive days without a member is dissolved and must wind up. A written agreement can name who takes over and how, and your estate plan should point to the same person.

Once a second owner contributes money, work, or both, the filing becomes the easy part.

A co-owner example

Maria and Dev open a coffee shop. Maria contributes $60,000. Dev contributes $15,000 and runs the shop full time. They agree on an 80/20 split over dinner, file online, and never write anything else down.

Illinois recognizes operating agreements that are oral, in a record, implied, or any combination of those (805 ILCS 180/1-5). Their dinner conversation may count. The problem is proof. If Dev later remembers a 50/50 deal, Maria has to prove the terms she remembers.

Where no agreement covers a point, the Act's default rules govern (Section 15-5(a)). Here is what those defaults do to Maria and Dev.

Start with money. Under Section 25-1, distributions made before the company dissolves must be in equal shares. That rule takes no account of who put in $60,000 and who put in $15,000.

Then control. An Illinois LLC is member-managed unless the operating agreement says otherwise. Each member has equal management rights, and a majority of the members decides most matters (Section 15-1). With two members, a disagreement has no majority. Some decisions require every member's consent, including admitting a new member and selling all or substantially all of the company's property. Maria can't bring in an investor over Dev's objection.

A lasting deadlock can end up in court. A member can ask a court to dissolve the company when it is not reasonably practicable to carry on the business under its articles and operating agreement. The court may order another remedy instead, such as a buyout of that member's interest (Section 35-1(a)(4)(C) and (b)).

Then death. If Dev dies, the Act treats him as dissociated (Section 35-45(8)). His interest becomes a transferee's interest, which carries distributions but no management rights (Sections 35-55 and 30-5(b)). His personal representative gets a transferee's limited rights and, to settle the estate, a member's information rights (Section 30-25). Maria keeps running the shop while Dev's estate holds his economic interest, with no agreed price and no agreed way to buy it.

None of those outcomes reflects what Maria and Dev intended. A written agreement signed when they formed the company could have addressed each one.

What co-owners should settle before anyone files

Work through these questions together before the filing. Who owns what percentage, and does that track money, work, or both? What happens when the company needs more capital and one owner can't contribute? Who can sign contracts, open accounts, and hire?

Which decisions need everyone's consent, and how do you break a tie? Can an owner sell to an outsider, and do the others get the first chance to buy? What triggers a buyout, such as death, disability, divorce, or a falling out, and how is the price set? Does an owner who works in the business draw a salary separate from profit distributions?

If you can't agree on these now, filing won't make them easier later.

What an operating agreement does

An operating agreement governs relations among the members, the managers, and the company. With limited exceptions, it can change the Act's default rules (Section 15-5(a)). That's its job: replacing equal distributions, per capita voting, and the default death rules with the deal you actually made.

It has limits. It can't unreasonably restrict a member's right to information, eliminate the implied covenant of good faith and fair dealing, or restrict a member's power to dissociate (Section 15-5(b)). Any restriction of fiduciary duties must be clear and unambiguous (Section 15-5(c)).

Illinois doesn't require a written agreement for your LLC to provide limited liability. A written agreement gives you proof of the terms when owners disagree, and a plan for events nobody wants to negotiate after they happen. A generic template may not do either. It may set percentages that don't match your contributions, or say nothing about buyouts.

What limited liability protects, and where it stops

The core rule is Section 10-10(a). The company's debts, obligations, and liabilities belong to the company. You aren't personally liable for them solely because you're a member or manager.

Section 10-10(c) goes further. A company's failure to observe the usual company formalities is not a ground for holding members or managers personally liable for the company's liabilities. Skipped meetings or missing minutes don't, by themselves, cost you the protection.

The protection still has edges. Section 10-10(a-5), as amended effective January 1, 2025, preserves personal liability under other law, including agency, contracts, and torts. Three situations come up most.

Your own conduct is the first. If you personally commit a wrongful act, such as fraud or negligence, you can be liable for it even while acting for the company. Section 10-10(a-5) says so expressly.

Your own contracts are the second. If you sign a personal guaranty on a lease or loan, you owe that debt under the guaranty. The LLC doesn't change that.

Veil piercing is the third. Section 10-10(a-5) keeps it available as a court-imposed equitable remedy, subject to subsection (c). In corporate cases, Illinois courts ask two questions. Are the owner and the entity so intertwined that their separate identities no longer exist? Would respecting the separation sanction fraud or promote injustice? Factors courts weigh include inadequate capitalization and commingling of funds (Fontana v. TLD Builders, Inc., 362 Ill. App. 3d 491 (2d Dist. 2005)). For an LLC, missed formalities can't be the basis.

The practical steps are plain. Keep a separate bank account. Pay personal expenses from personal funds. Sign contracts in the company's name and show your title.

If you already formed your LLC online

You don't need to start over. Pull your filed Articles of Organization and work through a short review.

Compare the articles to how you actually run the company. The articles must state the names and business addresses of all managers and any member with management authority. If that no longer matches reality, you may need to file an amendment, which carries a $50 state fee (Section 50-10).

Check your registered agent. Many online services list themselves. Make sure lawsuits and state notices will reach you. Illinois declares a company delinquent if it fails to appoint a new agent within 60 days after the old one resigns (Section 50-15).

Find your operating agreement, in whatever form it exists. Many online packages include a template. Read it against your actual deal: ownership percentages, management, buyouts, and what happens on death or incapacity. A template that says nothing about buyouts leaves the statutory defaults in place.

Confirm the company is in good standing. The annual report fee is $75. A report not filed before the first day of the company's anniversary month makes the company delinquent and not in good standing (Sections 50-10 and 50-15).

Review how you've operated. Look for commingled funds, contracts signed in your own name, and personal guaranties you may have forgotten.

Check the name. State approval of an LLC name is not trademark clearance. Our LLC vs. trademark guide explains the difference and what to search.

Mahou Law's business formation work includes drafting operating agreements for companies that were formed online and need the paperwork to catch up. If you're forming with a co-owner, or you filed online and want to know how the defaults apply to you, schedule a business consultation. Mahou Law serves Oak Park, Chicago, and businesses throughout Illinois.

Updated October 8, 2026. An earlier version of this article said that failing to observe company formalities could expose LLC owners to personal liability. Section 10-10(c) of the Illinois LLC Act says it is not a ground for personal liability. This version corrects that and adds statutory sources.

This article is general information about Illinois law and is not legal advice. Reading it does not create an attorney-client relationship. The right approach depends on your circumstances. Mahou Law LLC represents clients throughout Illinois from its office in Oak Park.