How to File Small Claims in Illinois

Before You File: The Demand Letter

Judges in Illinois don't require a pre-suit demand letter for most claims, but they notice when you've made a good-faith effort to settle. A written demand sent by certified mail with return receipt requested shows the court you tried to resolve things before dragging everyone into the courthouse.

Your demand letter should include:

• Both parties' full legal names and addresses
• A clear timeline of what happened and what's owed
• An itemized amount with supporting math
• A firm payment deadline (14 to 30 days is standard)
• A statement that you'll file in small claims court if payment isn't received

Keep a copy of the letter and the postal receipt. Demand letters don't pause your statute of limitations — the filing deadline keeps running.

Step 1: Confirm Your Claim Fits Small Claims Court

Illinois small claims handles money-only claims up to $10,000, exclusive of interest and court costs. The court can't order someone to do or stop doing something — it awards cash judgments only.

Check your statute of limitations: 10 years for written contracts, 5 years for oral contracts and property damage, 2 years for personal injury.

Step 2: Identify the Defendant's Legal Name

This step prevents more problems than any other. If you're suing a business, search the Illinois Secretary of State Business Services database for the exact legal entity name, status, and registered agent address. "Joe's Plumbing" on the van may actually be "Joseph Smith Plumbing Services, LLC" in the state records.

For sole proprietors, sue the individual owner (e.g., "John Smith d/b/a Joe's Plumbing"). For partnerships, name the individual partners. For LLCs and corporations, use the entity's legal name exactly as registered.

Step 3: Determine Venue

File in the county where any defendant resides, or where the transaction or incident occurred. In Cook County, you'll need to identify the specific Municipal District courthouse within the county.

Step 4: File Through eFileIL

Electronic filing is mandatory across all Illinois Circuit Courts. Go to efile.illinoiscourts.gov, create an account with an approved Electronic Filing Service Provider, and submit:

• A Small Claims Complaint (Form SMC) with the factual basis and dollar amount
• Any written contract, lease, or invoice attached as a redacted PDF exhibit
• Payment for the filing fee, or an approved fee waiver application

For claims of $2,500 or less, you can use the simplified complaint under Supreme Court Rule 282 — it's a shorter form with fewer requirements.

Under Rule 9(d), self-represented litigants who are incarcerated when filing and people whose disability prevents e-filing are automatically exempt. Other self-represented litigants may request a good-cause exemption for reasons including lack of home computer/internet access or technological literacy, no email account or credit card/bank account, a language barrier or low literacy, or an unsuccessful attempt to e-file when equipment or support was unavailable. File the Certification for Exemption From E-Filing for a good-cause exemption; it takes effect when filed. Exempt filers may submit paper documents in person, by mail, or through another method allowed by the local court.

Step 5: Serve the Defendant

Illinois gives you three options:

1. Clerk certified mail (Rule 284) — the cheapest option. The clerk mails the summons via certified mail, restricted delivery to the addressee.
2. Sheriff service — the sheriff's office in the defendant's county personally delivers the papers.
3. Private process server — a licensed individual appointed by the court delivers service.

You absolutely cannot serve the papers yourself. Self-service is void under Illinois law.

Step 6: Prepare for the Return Date

Your summons will show a return date 40 to 61 days after issuance. What happens on that date depends on local circuit rules — it might be a status call, a mandatory mediation session (McLean County does this), or the actual trial. Check your county's specific procedures so you know what to expect.

Bring your evidence organized: the contract, payment records, photos, texts, and any witnesses who can testify live.

What Comes Next

If the defendant doesn't show up and you've properly served them, request a default judgment. If the case is contested, the judge holds an informal bench trial under Rule 286(b) and typically rules the same day.

The Illinois Small Claims Filing Guide provides printable checklists for each of these steps, plus a deadline calendar so nothing falls through the cracks.

See more Illinois guides →