Rule 329b Automatic Denial Ends Duty to Rule | In re A.S., B.S., & E.S. (2026)

In the Interest of A.S., B.S., and E.S., Children, 05-25-00113-CV, November 04, 2026.

On appeal from 330th Judicial District Court, Dallas County, Texas

Synopsis

Under Texas Rule of Civil Procedure 329b(c), a motion for new trial not determined by signed written order within 75 days after judgment is overruled by operation of law. Once that automatic denial occurs, the trial court has no duty to issue another ruling on the motion—even if the court incorrectly calculates when its plenary power expires—and reversal requires a showing of harm.

Relevance to Family Law

Post-judgment deadlines are particularly consequential in divorce and SAPCR litigation, where final decrees frequently resolve conservatorship, possession, child support, property division, and fee awards in a single judgment. Counsel cannot treat a pending motion for new trial as remaining undecided indefinitely or rely on a hearing setting, docket entry, or informal communication to preserve relief. The 75-day deadline runs from the date the judgment is signed, and only a signed written order determines the motion before automatic denial.

The opinion also reinforces the risks of late-disclosed exhibits and witnesses in contested custody proceedings. Photographs, parenting-application records, recordings, financial documents, and fact witnesses may be excluded under Rule 193.6 unless the proponent establishes good cause or lack of unfair surprise or prejudice. On appeal, an incomplete reporter’s record may prevent meaningful review of that exclusion.

Case Summary

Fact Summary

Father initiated a divorce proceeding involving three children and requested appointment as their sole managing conservator. Mother counter-petitioned and likewise sought sole managing conservatorship. The parties reached a partial mediated settlement agreement under which they agreed to joint managing conservatorship and resolved much of their property and debt division, but they did not resolve all issues concerning conservatorship, possession, and child support.

The remaining issues proceeded to a bench trial on October 8, 2024. Before trial, Mother objected under Texas Rule of Civil Procedure 193.6 to Father’s exhibits and witnesses. According to Mother, Father disclosed the exhibits the day before trial, had not timely filed an exhibit list, and had not timely designated his witnesses. Father’s counsel responded that she had only recently been retained and characterized the exhibits as photographs of the home and records Mother already possessed. Mother countered that the production also included newly disclosed audio and visual recordings.

The trial court sustained Mother’s objection and excluded Father’s exhibits and witnesses. Following trial, the court appointed Mother sole managing conservator, appointed Father possessory conservator under a standard possession order, ordered Father to pay child support, and required him to continue providing medical insurance for the children.

Before entry of the final decree, Father filed a motion for rehearing alleging that former counsel’s failure to file timely exhibit and witness lists had prevented him from presenting his case. On October 31, 2024, the trial court signed the final divorce decree and denied the motion for rehearing.

Father subsequently filed a motion for new trial. Although the clerk initially file-stamped the motion on December 6, Father later produced evidence that it had been filed on November 29—within 30 days after the decree. No signed written order determined the motion within 75 days after the judgment. Accordingly, the motion was overruled by operation of law on January 14, 2025.

On February 11, the trial court made a docket entry stating that the motion had been overruled by operation of law and that the court had lost plenary power. Father moved for reconsideration, arguing that the court retained plenary power until February 13 and therefore should consider his motion for new trial on the merits.

On appeal, Father also challenged the exclusion of his evidence and witnesses. He did not, however, provide the complete reporter’s record. Instead, he relied on an excerpt attached to his motion for new trial.

Issues Decided

1. Whether Rule 329b required the trial court to issue an additional ruling on Father’s motion for new trial after the motion had already been overruled by operation of law.

2. Whether the trial court’s apparent miscalculation of its remaining plenary-power period constituted reversible error.

3. Whether the trial court abused its discretion under Rule 193.6 by excluding Father’s untimely disclosed exhibits and witnesses.

4. Whether Father could establish reversible error concerning the evidentiary rulings without providing a complete reporter’s record.

Rules Applied

• Texas Rule of Civil Procedure 329b(c): A motion for new trial is overruled by operation of law if it is not determined by a signed written order within 75 days after the judgment is signed.

• Texas Rule of Civil Procedure 329b(e): When a timely motion for new trial is filed, the trial court retains plenary power until 30 days after the motion is overruled, whether by signed order or operation of law.

• In re Harris, No. 05-14-00968-CV, 2014 WL 3882311 (Tex. App.—Dallas Aug. 7, 2014, orig. proceeding): Once a motion for new trial has been overruled by operation of law, the trial court has no ministerial duty to issue an additional ruling on that motion.

• Texas Rule of Appellate Procedure 44.1(a): A civil judgment may not be reversed unless the complained-of error probably caused an improper judgment or probably prevented the appellant from properly presenting the case on appeal.

• Texas Rule of Civil Procedure 193.5(b): A discovery supplementation made less than 30 days before trial is presumptively untimely.

• Texas Rule of Civil Procedure 193.6: A party generally may not introduce evidence or testimony that was not timely disclosed unless the proponent establishes good cause or demonstrates that the failure will not unfairly surprise or unfairly prejudice the opposing party.

• Jackson v. Takara, 675 S.W.3d 1, 6 (Tex. 2023) (per curiam): Once a witness is shown to have been untimely designated, the Rule 193.6 inquiry turns to good cause or the absence of unfair surprise or prejudice.

• Texas Rule of Appellate Procedure 34.6(c)(4): When an appellant provides only a partial reporter’s record without satisfying the governing requirements, the appellate court may presume the omitted portions support the trial court’s ruling.

Application

The court began with the date of the final decree: October 31, 2024. Because no signed written order determined Father’s motion for new trial within the following 75 days, Rule 329b(c) automatically overruled the motion on January 14, 2025. Thus, by the time the trial court made its February 11 docket entry, the motion had already been denied as a matter of law.

The trial court may have been incorrect when it stated that it had already lost plenary power. A timely motion for new trial ordinarily extends plenary power until 30 days after the motion is overruled by operation of law. But the distinction between plenary power and a duty to rule was dispositive. Continued plenary power did not revive the already-overruled motion or impose an obligation to enter another order denying it.

The Dallas Court of Appeals relied on In re Harris for the proposition that a trial court need not provide an additional ruling after automatic denial. Father also failed to show that the trial court’s mistaken plenary-power calculation probably caused an improper judgment or prevented him from properly presenting the appeal. Any error in the court’s explanation was therefore harmless under Rule 44.1(a).

On the Rule 193.6 issues, Father bore the burden to establish either good cause for his late disclosures or the absence of unfair surprise or prejudice. Counsel’s recent retention and generalized assertion that Mother already possessed some of the materials did not conclusively satisfy that burden—particularly because Mother represented that the last-minute disclosure included new audio and visual recordings.

Father’s appellate presentation created an additional obstacle. Without a complete reporter’s record, the appellate court could presume that the omitted portions supported the exclusion ruling. The limited excerpt attached to the motion for new trial did not establish an abuse of discretion, and the motion itself did not supply evidence proving good cause or lack of unfair surprise or prejudice.

Holding

The court held that Father’s motion for new trial was overruled by operation of law 75 days after the final decree because the trial court did not determine it through a signed written order. After that automatic denial, the trial court had no obligation to enter an additional ruling on the motion.

The court further held that any error in the trial court’s calculation of its plenary-power period was not reversible. Father did not demonstrate that the miscalculation probably caused the rendition of an improper judgment or prevented him from properly presenting his appeal.

Finally, the court rejected Father’s Rule 193.6 challenges. Father did not carry his burden to establish good cause or lack of unfair surprise or prejudice, and his failure to provide the complete reporter’s record prevented the appellate court from concluding that the trial court abused its discretion. The final divorce decree was affirmed.

Practical Application

Do not conflate automatic denial with expiration of plenary power. A motion for new trial may be overruled by operation of law on day 75 while the trial court retains plenary power for another 30 days. During that remaining period, the court may still possess authority to vacate or modify the judgment, but it is not required to issue a second ruling on a motion already denied by operation of law.

Calendar from the signing date, not from notice, filing, or hearing. In a divorce or SAPCR, counsel should calculate the 30-day deadline for filing a motion for new trial, the 75-day automatic-denial date, the resulting plenary-power deadline, and the applicable appellate deadlines immediately after the final order is signed.

Obtain a signed written order before day 75 if an express ruling matters. A hearing, oral pronouncement, docket entry, email, or coordinator communication is not a substitute for a signed written order determining the motion. If the motion presents grounds requiring evidentiary development—such as newly discovered evidence, lack of notice, or a complaint dependent on proof outside the trial record—secure a timely hearing and tender a proposed order.

Use the remaining plenary-power period strategically, but do not assume a duty to act. If day 75 passes, counsel should not simply ask the court to “rule” on the already-denied motion. Any request for relief should accurately identify the court’s remaining authority and should be presented before plenary power expires.

Treat Rule 193.6 compliance as a trial-readiness issue. In custody and conservatorship disputes, the most persuasive evidence often consists of texts, parenting-application records, school records, photographs, recordings, medical records, and testimony from collateral witnesses. That evidence must be timely disclosed and the witnesses timely designated. Recent substitution of counsel does not itself establish good cause.

Build the Rule 193.6 record at trial. If evidence is challenged as untimely, the proponent should request an express determination of good cause or lack of unfair surprise or prejudice, present supporting evidence, and obtain rulings on each category of evidence and each witness. If exclusion occurs, make a complete offer of proof or bill of exception.

Protect the appellate record. An appellant challenging an evidentiary ruling generally needs the complete context in which the ruling occurred. A selective transcript attached to a post-judgment motion may not substitute for a properly filed reporter’s record, and omitted portions may be presumed to support the judgment.

Checklists

Post-Judgment Deadline Control

• Record the exact date the final decree or appealable order was signed.
• Calendar the 30-day deadline for filing a motion for new trial.
• Calendar the 75th day after judgment as the automatic-denial date.
• Calendar the date on which plenary power expires under Rule 329b.
• Calendar the notice-of-appeal deadline independently.
• Confirm whether any amended or corrected judgment restarts applicable deadlines.
• Do not rely exclusively on the clerk’s file stamp if electronic-filing records show an earlier filing date.
• Preserve the electronic filing confirmation, envelope, acceptance notice, and payment receipt.
• Recalculate all deadlines whenever the trial court signs a new or modified judgment.

Securing a Timely New-Trial Ruling

• Request a hearing early enough to permit a ruling before day 75.
• Confirm that the court has reviewed all supporting affidavits and exhibits.
• Prepare and tender a proposed written order.
• Verify that the judge signs the order before the automatic-denial deadline.
• Confirm that the signed order is filed with the clerk.
• Do not treat an oral ruling or docket entry as a signed order under Rule 329b(c).
• If day 75 passes, distinguish between automatic denial and the later expiration of plenary power.
• Frame any remaining request for relief according to the court’s actual authority during the plenary-power period.

Preparing Family-Law Evidence for Rule 193.6

• Identify all potential exhibits well before the discovery deadline.
• Timely supplement disclosures with documents, recordings, photographs, and electronically stored information.
• Designate fact and expert witnesses by the governing deadlines.
• Confirm that parenting-application records and text-message exports have been produced in usable form.
• Disclose audio and video recordings even if the opposing party participated in the recorded event.
• Document when each item was produced and how it was transmitted.
• Do not assume the opposing party’s prior possession eliminates the need for disclosure.
• Audit exhibit and witness lists immediately after substituting into a case.

Responding to a Rule 193.6 Objection

• Identify the precise disclosure deadline and date of supplementation.
• Present evidence supporting good cause, not merely attorney argument.
• Explain specifically why the opposing party will not be unfairly surprised or prejudiced.
• Establish whether the opposing party previously received or used the same evidence.
• Address each exhibit and witness separately when their disclosure histories differ.
• Request a short continuance or other curative relief when appropriate.
• Obtain an express ruling on the asserted exception.
• Make a complete offer of proof or bill of exception for excluded evidence.

Preserving an Evidentiary Appeal

• Arrange for a court reporter at all relevant proceedings.
• Pay or make timely arrangements for preparation of the reporter’s record.
• Ensure the record contains the objection, response, evidence, and ruling.
• Include the excluded exhibits through an offer of proof or formal bill of exception.
• Preserve the substance of excluded witness testimony.
• Request findings supporting a Rule 193.6 ruling when strategically appropriate.
• Avoid relying solely on isolated transcript excerpts attached to a post-judgment motion.
• Verify that the appellate record contains every proceeding necessary to evaluate harm.

Citation

In the Interest of A.S., B.S., and E.S., Children, No. 05-25-00113-CV (Tex. App.—Dallas Nov. 4, 2026, no pet. h.) (mem. op.).

Full Opinion

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