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Illinois Eviction Complaint (06/24), page 1
Basic · 44/100Form Complexity Index

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What this form asks for

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The Illinois Eviction Complaint, form E-C 3502.3, is an official legal document approved by the Illinois Supreme Court for use in all Illinois Circuit Courts. It is filed by a landlord (Plaintiff) to initiate a lawsuit to remove a tenant (Defendant) and regain possession of a property. This form is crucial as it formally outlines the legal grounds for the eviction, such as non-payment of rent or lease violations, and is the first step in the court-supervised eviction process. Today, this form can be filled out quickly and accurately using AI-powered services like Instafill.ai, which can also convert non-fillable PDF versions into interactive fillable forms.
Fillable fields48
Pages2
Sections14
Questions that depend on earlier answers10
Form Complexity IndexBasic, 44/100

The AI checks your answers before you download

13 checks built for this form, so a wrong date or a missing answer is caught before anyone else sees it.

Ensures At Least One Defendant is Identified

This check verifies that either at least one full name is entered in the 'Defendants Names' field or the 'Unknown Occupants' checkbox is selected. An eviction complaint must be filed against a specific party or explicitly include unknown parties. Failure to identify a defendant will result in an invalid and unenforceable legal filing.

Validates At Least One Reason for Eviction is Selected

This validation ensures that the plaintiff has checked at least one box in section 2 (a-e) to specify the legal grounds for the eviction. A complaint must state a clear cause of action to be legally sufficient. If no reason is provided, the form submission will be rejected as incomplete and lacking a legal basis.

Conditional Requirement for Non-Payment of Rent Details

If the box for 'nonpayment of rent' (2a) is checked, this validation confirms that the rent period start date, end date, and the total amount owed are all filled in. These details are essential evidence for the claim and must be provided to substantiate the reason for eviction. Missing this information will prevent the form from being submitted until the fields are completed.

Logical Date Order for Non-Payment Period

This check ensures that the 'Nonpayment Rent Period End Date' (2a) is on or after the 'Nonpayment Rent Period Start Date'. An end date that precedes the start date is a logical impossibility and indicates a data entry error. This validation prevents submission of a factually incorrect claim, which could be dismissed by the court.

Conditional Requirement for Lease Violation Explanation

When the 'violated the terms of their lease' box (2c) is checked, this validation requires that the corresponding explanation text field is not empty. The court needs to know the specific nature of the alleged violation. An empty explanation field would render the claim vague and legally insufficient, thus blocking form submission.

Conditional Requirement for Past Due Rent Amount and Date

If the 'Past due rent' box in section 3 is checked, this validation ensures the 'Past Due Rent Amount Requested' and 'Past Due Rent Owed Through Date' fields are completed. A request for monetary damages must be specific in both amount and the period it covers. Failure to provide these details will result in an incomplete request for damages.

And 7 more checks
  • Validates Format of All Monetary Fields
  • Validates Format of All Date Fields
  • Verifies Attachment of Mandatory Notice or Affidavit
  • Cross-Validates Lease Violation Claim with Lease Attachment
  • Ensures Completeness of Plaintiff's Signature and Contact Information
  • Validates Format of Plaintiff's Email Address
  • Validates Format of Property ZIP Code

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How to Fill Out E-C 3502.3 Online for Free in 2026

What the AI walks you through.

  1. Navigate to Instafill.ai and upload or select the Illinois Eviction Complaint form.
  2. Use the AI assistant to input the county, plaintiff (landlord) name, and the names of all defendants (tenants), including any unknown occupants.
  3. Enter the full address of the property from which you are seeking eviction.
  4. Select the legal reason(s) for the eviction, providing specific details such as the amount of rent owed, the dates of non-payment, or a description of the lease violation.
  5. Indicate any additional demands, such as past-due rent or attorney's fees, and check the boxes for all supporting documents you are attaching, like the lease agreement or eviction notice.
  6. Review all the information populated by the AI for accuracy, then provide your electronic signature, printed name, and contact information.
  7. Download the completed Eviction Complaint, ready for filing with the appropriate Illinois Circuit Court.

Common Mistakes in Completing E-C 3502.3

The ones the AI is built to catch.

Forgetting to check the 'Unknown Occupants' box
Plaintiffs often only list the tenants named on the lease, forgetting about other individuals who may be living in the property. If the 'Unknown Occupants' box is not checked, the court's eviction order may not apply to these unnamed individuals, forcing the landlord to initiate a separate, costly legal process to remove them. To avoid this, always check this box if there is any uncertainty about who is residing at the property, ensuring the sheriff can legally remove everyone.
Providing an incomplete or inaccurate property address
A common error is omitting the apartment or unit number, or entering an incorrect ZIP code for the property in Section 1. This happens due to haste or oversight. An incomplete address can cause significant delays or even dismissal of the case, as it is essential for properly serving the defendants and for the sheriff to execute the eviction order. Always double-check the full address, including the unit number, to ensure legal documents are delivered correctly and the eviction can be carried out without issue.
Writing a vague explanation for a lease violation
When checking box 2c for a lease violation, filers sometimes provide a non-specific reason like 'broke the rules' or 'violated lease.' This is insufficient for a court, which requires a clear, factual basis for the eviction. The consequence is a likely dismissal of the complaint. To prevent this, explicitly state the specific lease clause that was violated and describe the actions taken by the defendant, for example, 'Tenant kept an unauthorized dog in the unit, violating Paragraph 15 of the lease agreement.'
Failing to attach mandatory supporting documents
The form explicitly requires attaching the eviction 'Demand or Notice' and the 'Affidavit of Service' (Section 4). Filers, especially those new to the process, may overlook these instructions, assuming the complaint itself is sufficient. Submitting the complaint without these mandatory attachments will almost certainly lead to the case being rejected by the court clerk or dismissed by the judge, wasting time and filing fees. Always use Section 4 as a final checklist before filing.
Not attaching the lease when claiming a lease violation
The instructions for Section 4 clearly state that if the eviction is based on a lease violation (Section 2c), a copy of the lease or its relevant parts must be attached. People often forget this step, weakening their legal argument. Without the lease as evidence, the judge cannot verify the terms the defendant allegedly violated, which can lead to the case being dismissed. AI-powered tools like Instafill.ai can help by creating conditional logic that reminds you to attach the lease if you select 'lease violation' as the reason for eviction.
Entering inconsistent or incorrect rent amounts
Filers may enter one amount for unpaid rent in Section 2a and a different amount for 'Past due rent' in Section 3, or the amounts may not match the attached eviction notice. This discrepancy occurs from miscalculation or data entry errors and creates confusion, undermining the plaintiff's credibility and potentially delaying the judgment. To avoid this, carefully calculate all amounts and ensure the figures are consistent across all sections of the form and in all supporting documents. Using a tool like Instafill.ai can help prevent this by cross-validating numerical entries.
Leaving required date ranges or amounts blank
When claiming nonpayment of rent (Section 2a), it is crucial to fill in the exact period for which rent is owed and the total amount. People sometimes check the box but forget to enter these specific details, leaving the court without the necessary information to rule on the claim. An incomplete claim for damages can result in the court only granting possession of the property but not a monetary judgment for the rent owed. If the form is a non-fillable PDF, a tool like Instafill.ai can convert it into an interactive version with clearly marked, required fields to prevent such omissions.
Failing to request all applicable damages
In Section 3, plaintiffs may only demand possession and past-due rent, forgetting to check the boxes for 'Future rent due through the date of judgment' or 'Attorneys' fees.' This oversight means they may forfeit their right to collect these additional costs, even if the lease allows for them. To maximize potential recovery, carefully review the lease and Section 3 to ensure you are requesting all legally permissible damages.
Listing incomplete or misspelled defendant names
Plaintiffs might use nicknames, initials, or misspell the names of the defendants they are trying to evict. This can create a legal loophole, as an eviction order is specific to the names listed on the complaint. A defendant could argue they were not properly named in the suit, causing delays or requiring the plaintiff to refile the case. Always use the full, legal names of all adult tenants as they appear on the lease agreement to ensure the eviction order is enforceable against the correct individuals.
Forgetting to sign the complaint form
Forgetting to sign the form on page 2 is a simple but critical mistake that immediately invalidates the filing. An unsigned legal document has no legal effect and will be rejected by the court clerk. This error often happens when filers are in a hurry and focus only on the factual sections. To avoid this, make the signature line the very last item you check before making copies or filing. AI form-filling tools like Instafill.ai can prompt for a digital signature, ensuring this crucial step is not missed.

Frequently Asked Questions About E-C 3502.3

 

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This plan is for your E-C 3502.3: your own AI agent fills it as often as 5 times a month. To fill other forms and upload your own, choose a Professional plan from your account.
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From your account, in two clicks, any time. No email, no call.
How does the AI fill out E-C 3502.3?
You answer a few questions in plain words, or upload a document you already have. The AI reads what you give it and puts each answer into the right field of E-C 3502.3, on every page, in seconds. It checks the answers against the form's own rules, and you review and change anything before you download, print or sign.
What happens to my information?
It is encrypted in transit and at rest, and it is never used to train AI.
How complex is E-C 3502.3 to fill out?
E-C 3502.3 has a Form Complexity Index of 44 out of 100, in the basic tier: 48 fillable fields across 2 pages. Instafill.ai's AI fills it in under a minute, with every field there for you to review before you download.
What is the Illinois Eviction Complaint form used for?
This form is used by a landlord or property owner to start the official court process for evicting a tenant in Illinois. It details the reason for the eviction and what the landlord is requesting from the court, such as possession of the property and past-due rent.
Who needs to fill out this Eviction Complaint form?
The landlord or property owner, who is referred to as the Plaintiff on the form, must complete and file this document. It is the first step in taking legal action to have a tenant removed from a property.
What is the purpose of the 'Unknown Occupants' checkbox?
You should check the 'Unknown Occupants' box if you believe there are people living in the property whose names you don't know. This ensures that the court's eviction order applies to everyone residing at the address, not just the tenants named on the lease.
What documents must I attach to the Eviction Complaint?
You are required to attach the 'Demand or Notice' you gave the tenant and the 'Affidavit of Service' that proves it was delivered. If the eviction is for a lease violation, you must also attach a copy of the written lease.
What if I don't have a copy of the lease or the eviction notice to attach?
If you cannot provide the required supporting documents, you must complete and attach the 'Affidavit – Supporting Documents Not Attached to Eviction Complaint' form. This affidavit explains to the court why the documents are missing.
Can I use this form to sue for the rent money I am owed?
Yes, in Section 3, you can check the boxes to demand past due rent, future rent that accrues until the judgment date, and attorney's fees if they are permitted by your lease and local laws.
Where do I get the Case Number for the form?
You will leave the Case Number field blank when you first fill out the form. The Circuit Clerk will assign a Case Number after you have successfully filed the complaint with the court.
How do I properly list the reason for the eviction in Section 2?
In Section 2, check the box that best describes why you are evicting the tenant, such as nonpayment of rent or lease violation. If you select 'lease violation,' you must provide a brief explanation of how the tenant broke the lease terms.
Where do I file the completed Eviction Complaint?
You must file the completed form and all its attachments with the Circuit Clerk's office in the Illinois county where the rental property is located.
How do I sign the form if I am filling it out on a computer?
The form instructions allow you to type your name in the signature line if you are completing it electronically. If you are filling it out by hand, you must physically sign your name.
Can AI tools help me fill out this Eviction Complaint form?
Yes, services like Instafill.ai use AI to accurately auto-fill form fields, which can save you time and help prevent common errors. This is especially useful for ensuring all required information is entered correctly.
How can I use Instafill.ai to fill this form out online?
To use Instafill.ai, you can upload the Eviction Complaint PDF to their platform. The AI will make the form interactive, allowing you to easily enter your information and generate a completed, accurate document ready for filing.
The PDF version of the form I downloaded is not fillable. What should I do?
If you have a non-fillable or 'flat' PDF, you can use a service like Instafill.ai. Their technology can convert the static document into an interactive, fillable form that you can complete on your computer.
Why is it important to provide an email address that I check every day?
The court and other parties will use your email to send important notices, documents, and court dates. Checking it daily ensures you do not miss critical information that could affect your case.
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