Small Business Sued in Illinois Small Claims Court
A customer files a small claims lawsuit against your business for a refund, defective goods, or a service that didn't go as planned. For sole proprietors, the response process is the same as for any individual defendant. For LLCs and corporations, Illinois imposes a representation rule that creates a trap if you're not aware of it.
The LLC and Corporation Rule
Under Supreme Court Rule 282(b), an LLC or corporation can defend itself in small claims court without a lawyer — but only as a defendant. The owner, manager, or an officer can appear on behalf of the company, file an appearance, present evidence, and argue the case.
The restriction kicks in if the business wants to file a counterclaim. The moment an LLC or corporation asserts an affirmative claim against the plaintiff, it becomes a claimant and must be represented by a licensed attorney. The Illinois Supreme Court confirmed this distinction in Downtown Disposal Services, Inc. v. City of Chicago. A counterclaim filed without an attorney can be struck or dismissed outright.
Sole proprietors don't face this restriction. Since a sole proprietorship is legally the same person as the owner, the owner has full pro se rights in every direction.
Responding to the Lawsuit
File an Appearance through eFileIL under the business entity's name — not your personal name. If the summons names your LLC, the appearance is filed as the LLC. Small-claims appearance fees are $0 statewide, effective October 1, 2025.
Show up on the return date. Under Rule 286(a), appearing on the return date operates as a denial of the plaintiff's allegations — you don't need to file a written answer unless the judge orders one.
What a Customer Lawsuit Typically Looks Like
Customer lawsuits in small claims court generally fall into a few categories: the service wasn't completed or was done poorly, the product was defective and no refund was given, a deposit was taken and the work never started, or there's a billing dispute over charges.
The common thread: the customer paid for something and believes they didn't get what was promised. Your defense turns on the contract terms (what was actually agreed), the documentation of the work performed, and any communications showing the customer accepted the work or was offered a resolution.
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Evidence to Prepare
The contract or service agreement. Written terms, quotes, invoices, and any change orders. If the agreement was verbal, pull together text messages and emails that show what was discussed and agreed.
Work documentation. Photos or records showing the work was completed, timestamps if the service was performed on site, and any sign-off or approval the customer gave during or after the work.
Communication history. Every message between you and the customer, especially after the complaint. If you offered a partial refund, a redo, or an alternative resolution and the customer declined, those messages show the court you acted reasonably.
Financial records. What the customer paid, when, and what they received. If you issued a partial refund, show the receipt.
At the Hearing
Present the agreement first, then the evidence that you performed the work as promised, then the communication showing how you handled the complaint. Judges in small claims cases under Rule 286(b) can relax evidence rules and ask questions directly — stay factual, answer directly, and let the documents speak.
The Illinois Small Claims Response Guide walks through the full response process for business defendants, including the entity representation rules and evidence organization templates.
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