Rule 366.Powers of Reviewing Court; Scope of Review and Procedure; Lien of Judgment
Article III. Civil Appeals Rules · Part F. Other Provisions · Last amended 1994 · Last verified July 20, 2026
Full Text of Ill. S. Ct. R. 366
Plain-English Summary
A reviewing court in Illinois isn't limited to a simple affirm-or-reverse choice. Rule 366 gives it the power to amend the record, add, drop, or rearrange parties, draw its own inferences of fact, and enter whatever judgment or order the case calls for — including a partial reversal, a remand for a new trial on just some issues, a remittitur, or enforcement of the judgment.
The rule also marks out what's reviewable. Any error of law or fact can come up on appeal. In jury cases, a party can't challenge an instruction it never tendered, accepting a remittitur doesn't waive a challenge to the verdict amount, and a post-trial motion limits the arguments a party can raise on appeal to the points it made in that motion. When the reviewing court decides to reverse an unconditional ruling on that motion, it can also review and decide any conditional rulings the trial court made on other questions the motion raised, without a cross-appeal.
Nonjury cases work differently: there's no need for special findings, a motion for a finding, or any other formal step to preserve a challenge to the sufficiency of the evidence. The rule closes with a practical detail — once a reviewing court's judgment becomes final and enforceable, recording it creates a lien on the judgment debtor's real estate in whatever county it's recorded.
Frequently Asked Questions
What can a reviewing court do beyond affirming or reversing?
Can a party challenge a jury instruction it never proposed?
Does accepting a remittitur give up the right to challenge the verdict?
Do nonjury litigants need special findings to preserve a sufficiency-of-the-evidence challenge?
What is the "lien of judgment" provision about?
Committee Comments and Commentary
(Revised July 1, 1971)
(December 17, 1993)
Amendment History
Amended October 21, 1969, effective January 1, 1970; amended May 28, 1982, effective July 1, 1982; amended December 17, 1993, effective February 1, 1994.