Rule 303.Appeals from Final Judgments of the Circuit Court in Civil Cases

Rule 303 governs the most common appeal in Illinois civil practice: an appeal from a final judgment. The core rule is simple to state and unforgiving in practice — the notice of appeal must reach the circuit clerk within 30 days of the final judgment, or within 30 days of the order resolving the last timely post-trial motion if one was filed. Miss that window and the appellate court has no power to hear the case, no matter how strong the underlying arguments are.

The rule works through the timing complications that arise when post-judgment motions are pending. A notice of appeal filed too early, before a post-trial motion is resolved, becomes effective once that motion is decided rather than being thrown out as premature. But if the later order grants relief different from the original judgment or resolves a separate claim, a party who wants to challenge that new ruling has to file another notice of appeal — the original one doesn't automatically cover it.

Beyond timing, Rule 303 spells out what the notice of appeal has to say: the court and case being appealed from, the parties and their new designations as appellant or appellee, the judgment or order under review, and the relief sought. It also covers service on other parties, a limited window to amend the notice, and a safety valve — a motion in the reviewing court, filed within 30 days after the original deadline passes, asking for leave to file a late notice for good reason.