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SU-LPS 1507.4

Letter to the Special Process Server

Illinois · Illinois Supreme Court · Effective January 1, 2025

This letter is used to give instructions to a process server who will deliver a Summons and Complaint or Petition to a person. It asks the server to serve the papers and then send back a Proof of Service using an envelope provided by the sender.

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 person needs to hire a process server to officially deliver legal papers (a Summons and Complaint or Petition) to another person in a case.

Usually filed by the person starting the case.

Official instructions

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

Common questions

Who should fill out this letter?
The person sending the papers to be served should complete this letter and send it to the process server. The form instructs the user to complete it for each person who needs to be served.
Do I file this letter with the court clerk?
No, the instructions state that the user should not file this letter with the Circuit Clerk.
What must I include when I send this letter to the process server?
The user must include copies of the Summons and Complaint or Petition, payment for service, and a self-addressed, stamped envelope for the server to mail the Proof of Service back.

Revision history

No changes recorded since we started tracking this form on October 9, 2026. The current version took effect January 1, 2025.

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