Material and Substantial Change Required to Modify Support | McCulloch (2024)

McCulloch v. McCulloch, 03-24-00518-CV, June 30, 2026.

On appeal from 425th Judicial District Court of Williamson County

Synopsis

Modification of child support and spousal maintenance under the Texas Family Code still turns on a threshold showing: the movant must prove a material and substantial change in circumstances since rendition of the prior order. In McCulloch, the Third Court of Appeals held that evidence of disability, unemployment, and financial strain did not compel modification where much of the evidence predated the divorce decree, had already been litigated, or failed to conclusively establish a post-decree reduction in earning capacity.

Relevance to Family Law

This opinion matters directly to Texas family law litigators handling post-divorce support disputes, especially cases involving alleged disability, intentional unemployment, and long-running enforcement/modification battles. The case reinforces that modification is not a vehicle to relitigate the original decree, and it underscores the evidentiary overlap between support modification, enforcement, credibility findings, and strategic proof of earning capacity—issues that routinely affect divorce decrees, SAPCR support orders, and maintenance litigation.

Case Summary

Fact Summary

The parties divorced in 2019 after a lengthy marriage. The final decree found, among other things, that the parties’ child was disabled and required indefinite support, that Willie’s gross annual income was at least $275,117, that guideline child support would be unjust or inappropriate, and that Willie was required to pay $4,500 per month in child support. The decree also awarded Jeannie indefinite spousal maintenance of $4,585.28 per month based on her inability to earn sufficient income because of an incapacitating disability. The decree further reflected findings involving family violence and abuse.

Very shortly after the decree, Willie sought modification of both child support and spousal maintenance. Earlier proceedings had already resulted in findings that he was intentionally unemployed and that no material and substantial change had occurred. In the later proceeding that led to this appeal, the OAG moved to enforce, and Willie again counterpetitioned for modification, alleging changed circumstances.

At the 2024 final hearing, Willie testified to schizophrenia, depression, anxiety, and bipolar disorder, and claimed he could not work because of “crippling bipolar” disorder. But he also acknowledged that depression, anxiety, and bipolar disorder had existed for years, including well before the divorce. No medical records were admitted. Although an SSA letter showed a disability determination effective November 1, 2019, the evidence also showed that at least some of the medical basis for that determination developed immediately after the divorce decree and that Willie had already raised the disability issue in prior modification proceedings.

The financial evidence was also mixed. Willie had previously worked in high-level computer engineering and technology sales positions, had not worked since 2018, and had received disability-related funds and a lump-sum SSA payment. But the record did not clearly establish the duration, amount, and disposition of all disability-related payments. The bank records reflected withdrawals, transfers, and limited transparency regarding living expenses. Jeannie, by contrast, testified that Willie’s mental-health conditions had long existed without preventing lucrative employment, and she challenged both the genuineness and the post-decree significance of his claimed inability to work. The trial court expressly found Willie not credible and Jeannie credible.

Issues Decided

The court addressed the following issues:

• Whether the trial court erred in finding no material and substantial change in circumstances since the prior order.
• Whether the trial court failed to follow child-support guidelines.
• Whether the trial court erred in allowing spousal maintenance to continue based on intentional unemployment.
• Whether the trial court erred in finding Willie intentionally unemployed.
• Whether the trial court erred in denying Willie’s motion for continuance.

Rules Applied

The court applied the governing Texas Family Code provisions for modification of child support and spousal maintenance:

• Tex. Fam. Code § 156.401(a)(1), governing modification of child support based on a material and substantial change in circumstances.
• Tex. Fam. Code § 8.057(c), governing modification of spousal maintenance based on a material and substantial change in circumstances.

The court also relied on the settled rule that the movant bears the burden to prove the requisite change in circumstances since rendition of the prior order. The opinion cites Zeifman v. Michels, 212 S.W.3d 582, 589 (Tex. App.—Austin 2006, pet. denied), for that burden framework. Embedded in the court’s analysis is another familiar appellate principle: modification decisions are reviewed deferentially, and credibility determinations remain for the trial court, not the court of appeals.

Application

The court treated the case as a classic threshold-failure modification appeal. Willie’s appellate position depended on the premise that his disability status and reduced finances necessarily established a material and substantial post-decree change. But the court rejected that premise because the evidence did not demonstrate a qualifying change from the circumstances that existed when the 2019 decree was rendered.

Much of Willie’s proof was either backward-looking or cumulative. His depression, anxiety, and bipolar disorder had been present for years, and his own testimony placed those diagnoses well before divorce. The SSA disability determination, while relevant, did not by itself require the family court to modify support, particularly where the underlying circumstances overlapped with facts already in existence near the time of the decree and where he had already raised disability in earlier proceedings. The trial court could reasonably view the SSA evidence as non-dispositive on the family-law question of whether a material and substantial change had occurred since the prior order.

The court also focused on the quality of the proof concerning earning capacity. Willie offered testimony about incapacity, but no medical records were admitted, and the surrounding evidence undercut the conclusiveness of his position. The record showed substantial prior earning history, sparse financial explanation, travel inconsistent with total incapacity, and discretionary use of a lump-sum payment without applying any of his portion to support arrearages. Jeannie’s testimony further supplied a competing narrative: that Willie’s mental-health issues had long coexisted with high earnings and that his post-divorce position was strategic rather than compelled. Because the trial court found Willie untruthful and Jeannie truthful, the appellate court deferred to those findings.

That same evidentiary and credibility framework also supported the intentional-unemployment finding and defeated Willie’s guideline-based arguments. Without first proving a qualifying material and substantial change, Willie could not force a recalculation of support under his preferred income view. The modification statutes did not authorize the court to revisit support merely because he presented some evidence of disability or because his finances were disputed.

Holding

The court held that modification of child support requires proof of a material and substantial change in circumstances since the prior order, and that Willie failed to carry that burden. The evidence did not compel a finding that his circumstances had materially changed after the divorce decree because the claimed mental-health conditions largely predated the decree, aspects of the disability claim had already been litigated, and the proof did not conclusively establish a post-decree reduction in earning capacity.

The court likewise held that modification of spousal maintenance requires the same threshold showing under the applicable maintenance statute, and that Willie failed to establish it. As a result, the trial court did not err in leaving maintenance in place.

The court further upheld the trial court’s intentional-unemployment finding. Given the evidentiary record and the trial court’s express credibility determinations, the appellate court found no basis to disturb that finding.

The court also rejected Willie’s complaint that the trial court failed to apply child-support guidelines. Because modification was not warranted in the first instance, the case did not present a basis to recalculate support under a new guideline analysis.

Finally, the court affirmed the denial of the continuance and affirmed the judgment in full.

Practical Application

For family law practitioners, McCulloch is a reminder that post-judgment support litigation is won or lost at the framing stage. If you represent the movant, your job is not merely to show hardship, diagnosis, unemployment, or even a disability finding from another agency. Your job is to build a clean before-and-after record tied to the date of the last controlling order and to prove that the change is both post-order and material. Without that chronology, the trial court can characterize the proof as rehashed decree evidence or prior-modification evidence.

The case is particularly useful in disputes involving mental-health evidence. An SSA award may be persuasive, but it is not self-executing in a Texas Family Code modification case. Counsel should expect the court to ask whether the condition existed at the time of the decree, whether worsening is objectively documented, whether the claimed functional limitations are medically supported, and whether the obligor’s actual conduct aligns with claimed incapacity. A lawyer relying only on client testimony invites an adverse credibility finding that is very difficult to reverse on appeal.

For the responding party, McCulloch offers a strong roadmap for defeating modification. Emphasize pre-decree history, prior litigation positions, unexplained finances, inconsistent conduct, and discretionary spending that undermines the claimed inability to pay. In the right case, credibility—not arithmetic—will be the decisive battleground.

This opinion also has consequences beyond support modification. In divorce litigation, practitioners should develop a robust record at the decree stage on earning capacity, health conditions, deviations from guidelines, and the reasons for maintenance. A detailed original record makes later modification attempts easier to defeat. In enforcement proceedings, the same evidentiary themes can support findings on willfulness, intentional unemployment, and nonpayment strategy.

Checklists

Building a Modification Record for the Movant

• Identify the exact date of the last controlling support or maintenance order.
• Create a side-by-side chronology of circumstances at the time of that order versus current circumstances.
• Separate truly new facts from facts that existed before the decree.
• Prove not just diagnosis, but functional impairment affecting earning capacity.
• Offer admissible medical records, physician testimony, or both.
• Explain all sources of income, benefits, gifts, transfers, and third-party support.
• Trace all lump-sum payments and show how funds were used.
• Demonstrate diligent efforts to obtain employment if partial work remains possible.
• Address prior adverse findings, including intentional unemployment, head-on.
• Anticipate and neutralize facts that can be used to attack credibility.

Opposing a Modification Request

• Pin the movant to the date of the prior order and require proof of post-order change.
• Show that alleged medical or financial problems predated the decree.
• Introduce evidence that the same issues were previously litigated.
• Highlight missing corroboration, especially absent medical records.
• Use bank records, travel, spending, and transfers to challenge incapacity narratives.
• Establish prior earning history and transferable skills.
• Contrast claimed disability with actual behavior and financial choices.
• Seek express credibility findings from the trial court.
• Preserve arguments that the movant failed to prove a material and substantial change before guideline recalculation is even considered.

Presenting Mental-Health-Based Support Claims

• Obtain records covering both pre-decree and post-decree treatment.
• Distinguish longstanding diagnosis from post-decree deterioration.
• Secure opinions on work limitations, not merely diagnostic labels.
• Tie symptoms to inability to perform prior employment or comparable work.
• Explain medication history, compliance, and prognosis.
• Prepare for cross-examination on travel, communications, social functioning, and financial management.
• Avoid relying solely on SSA determinations without underlying medical proof.

Avoiding the Non-Prevailing Party’s Problems

• Do not assume an SSA disability award will control a Texas modification proceeding.
• Do not present a modification case without admissible medical evidence.
• Do not ignore the effect of prior proceedings and prior factual findings.
• Do not leave deposits, withdrawals, and transfers unexplained.
• Do not use discretionary funds in ways that undermine inability-to-pay claims.
• Do not treat the modification hearing as a retrial of the divorce.
• Do not underestimate the effect of adverse credibility findings on appeal.

Preserving the Record for Appeal

• Obtain a clear ruling on each requested modification.
• Request findings tying the court’s ruling to lack of material and substantial change, credibility, and earning capacity.
• Make sure all exhibits, including medical and financial records, are admitted.
• Preserve any complaint regarding denied continuance with a complete record of diligence and prejudice.
• Frame appellate issues around abuse of discretion and sufficiency of the evidence within that standard.

Citation

McCulloch v. McCulloch, No. 03-24-00518-CV, ___ S.W.3d ___ (Tex. App.—Austin June 30, 2026, no pet. h.).

Full Opinion

Read the full opinion here

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