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ISC-RB 4502.1

Appellant’s Reply Brief (Supreme Court)

Illinois · Illinois Supreme Court · Effective August 1, 2024

This form is a document used in the Supreme Court of Illinois for an Appellant to write a reply brief. It asks the filer to explain why the other side's response to the original argument is incorrect, using legal sources and references to the court record.

Open the official PDFfrom Illinois Supreme Court

Where this fits in a case

Appeal

Stage: Appeal

This form is used when a case has already gone through the Appellate Court and is now before the Supreme Court. It is used to reply to arguments made by the opposing party.

Either party may file.

Official instructions

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

Common questions

What is this form for?
This form is an Appellant's Reply Brief for the Supreme Court of Illinois. It is used to write a reply to the other side's response to your original argument.
Do I need to write my original argument again?
No, the instructions say not to repeat your original argument. Instead, you must explain why the other side's response is wrong.

Revision history

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

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