RulesofCivilProcedure.com Civil Procedure · Every State

Rule 83.Altering or Amending a Judgment

Part X. Judgments and Decrees · Last amended January 1, 2019 · Last verified September 4, 2026

In one sentenceRule 83 lists eight grounds for altering or amending a judgment, gives 25 days to move, and requires any order granting the motion to specify the grounds with particularity.

Full Text of Rule 83

Text sizeJump to: (a) (b) (c) (d) (e) (f)

(a) Generally.
(1) Grounds for Altering or Amending a Judgment. The court may on its own or on motion alter or amend all or some of its rulings on any of the following grounds materially affecting a party's rights:
(A) the court did not properly consider or weigh all of the admitted evidence;
(B) any irregularity in the proceedings or abuse of discretion depriving the party of a fair trial;
(C) misconduct of the other party;
(D) accident or surprise that could not reasonably have been prevented;
(E) newly discovered material evidence that could not have been discovered and produced at the trial with reasonable diligence;
(F) error in the admission or rejection of evidence, or other errors of law at the trial or during the action;
(G) mistakenly overlooked or misapplied uncontested facts, including mathematical errors, which were necessary to the ruling; or
(H) the decision, findings of fact, or judgment is not supported by the evidence or is contrary to law.
(b) Court Action. The court may vacate the judgment if one has been entered, take additional testimony, amend findings of fact and conclusions of law or make new ones, and direct the entry of a new judgment. The relief, if granted, must be limited to the question or questions found to be error, if separable.
(c) Time to File a Motion; Scope; Response and Reply.
(1) Motion. A motion under this rule must be filed not later than 25 days after the entry of judgment under Rule 78(b) or (c). This deadline may not be extended by stipulation or court order, except as allowed by Rule 4(b)(2).
(2) Response. Within 15 days of the filing of a motion under this rule, the court must either summarily deny the motion or set a deadline for a response. The court may limit the scope of a response to specified issues. The court may not grant a motion without providing the non-moving party an opportunity to file a response. The response deadline will be 30 days after the entry of an order requiring a response.
(3) Contents of Response. The response must address any issues raised in the motion, unless limited by the court. The response must also address any issues that might arise if the motion is granted.
(4) Reply. The reply must be filed not later than 15 days after the filing of a response.
(d) Successive Motions. No party may file a motion to alter or amend an order granting or denying a motion under this rule.
(e) Motion after Service by Publication. When judgment has been rendered after service by publication, and the defaulted party has not appeared, the court may grant a motion made pursuant to this rule if the defaulted party--within one year after entry of judgment--files an application establishing good cause for granting the motion.
(f) Order Must Specify Grounds. Any order granting a motion made pursuant to this rule must specify with particularity the ground or grounds for the court's order.
End

Rule History

Added Aug. 30, 2018, effective Jan. 1, 2019.

Plain-English Summary

Rule 83 is Arizona family law's motion for new trial and to alter or amend, combined. It is also the motion Rule 78(e)(3) points to when a judgment omits a ruling on attorney fees.

The eight grounds

Each must materially affect a party's rights:

  • the court did not properly consider or weigh all of the admitted evidence;
  • any irregularity in the proceedings or abuse of discretion depriving the party of a fair trial;
  • misconduct of the other party;
  • accident or surprise that could not reasonably have been prevented;
  • newly discovered material evidence that could not have been discovered and produced at trial with reasonable diligence;
  • error in the admission or rejection of evidence, or other errors of law;
  • mistakenly overlooked or misapplied uncontested facts, including mathematical errors, necessary to the ruling; or
  • the decision, findings or judgment is not supported by the evidence or is contrary to law.

The court may act on its own or on motion, and may alter or amend all or some of its rulings.

What the court can do

Vacate the judgment, take additional testimony, amend findings and conclusions or make new ones, and direct entry of a new judgment. Relief must be limited to the question or questions found to be error, if separable -- so a single error does not reopen an entire decree.

The 25-day deadline, and the unusual briefing sequence

A motion must be filed not later than 25 days after the entry of judgment under Rule 78(b) or (c). That deadline may not be extended by stipulation or court order, except as Rule 4(b)(2) allows.

Then the sequence inverts the usual pattern. Within 15 days of filing, the court must either summarily deny the motion or set a deadline for a response -- and may limit the response to specified issues. A response is not owed until the court orders one, and the deadline is then 30 days after that order, with a reply due 15 days after the response. The court may not grant the motion without giving the non-moving party an opportunity to respond.

A response must address the issues raised and any issues that might arise if the motion is granted -- so the responding party has to brief the consequences of losing, not merely defend the judgment.

Three closing provisions

No successive motions: a party may not move to alter or amend an order granting or denying a Rule 83 motion. Where judgment followed service by publication and the defaulted party never appeared, the court may grant a Rule 83 motion if that party files an application establishing good cause within one year of entry. And any order granting a Rule 83 motion must specify with particularity the ground or grounds.

Frequently Asked Questions

How long do I have to file a Rule 83 motion?

Rule 83(c)(1) requires filing not later than 25 days after the entry of judgment under Rule 78(b) or (c). The deadline may not be extended by stipulation or court order, except as allowed by Rule 4(b)(2).

Do I have to respond to a Rule 83 motion?

Not until the court orders one. Rule 83(c)(2) requires the court within 15 days to either summarily deny the motion or set a deadline for a response, which is 30 days after the order requiring it. The court may not grant the motion without giving the non-moving party an opportunity to respond.

What must my response cover?

Rule 83(c)(3) requires the response to address any issues raised in the motion, unless limited by the court, and also any issues that might arise if the motion is granted.

Can the court take new evidence on a Rule 83 motion?

Yes. Rule 83(b) allows the court to vacate the judgment, take additional testimony, amend or make new findings of fact and conclusions of law, and direct entry of a new judgment, with relief limited to the questions found to be error if separable.

Can I move to reconsider the ruling on my Rule 83 motion?

No. Rule 83(d) says no party may file a motion to alter or amend an order granting or denying a motion under this rule.

What if judgment was entered after service by publication?

Rule 83(e) allows the court to grant a Rule 83 motion if the defaulted party, who has not appeared, files an application within one year after entry of judgment establishing good cause for granting the motion.

Source & verification. Rule text and Rule History reproduced verbatim from the Arizona Rules of Family Law Procedure as published by the Arizona Supreme Court, current through amendments effective January 1, 2026. Promulgated by the Supreme Court of Arizona (Ariz. Const. art. 6, § 5). Last verified September 4, 2026. · Official text
Also known as: altering a judgmentamending a judgmentnew trial25 daysnewly discovered evidencemathematical errormotion after judgmentservice by publication