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SU-AD 1506.2

Additional Defendant

Illinois · Illinois Supreme Court · Effective November 1, 2024

This form is used when a person needs to serve more than one Defendant or Respondent in a case. It asks for the names and addresses of all the people or businesses involved in the lawsuit.

Open the official PDFfrom Illinois Supreme Court

Where this fits in a case

Start a case

Stage: Start a case

This form is used when a party is filing a case and needs to officially notify more than one person or business that they are being sued. It must be attached to the main Summons document.

Usually filed by the person starting the case.

Official instructions

How-to guides published by the court for this form.

Common questions

What is this form for?
This form is for providing extra information about defendants or respondents when you are serving more than one person in a case.
Who should fill out this form?
The form is used when filing the case, and it collects information about the people or businesses being sued.
Does this form cost money to file?
The form text states that forms are free at ilcourts.info/forms.

Revision history

No changes recorded since we started tracking this form on October 9, 2026. The current version took effect November 1, 2024.

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