Material Change in Texas Custody Cases: What Counts

Parent reviewing a Texas custody order

To change a Texas custody order, you generally must show two things: that the change is in your child’s best interest, and that circumstances have materially and substantially changed since the order was signed. A change that is merely different, or that does not affect the child, is not enough. If you are weighing a modification, our Texas custody modification guide and our child custody and support practice are where Anna Din’s office helps parents turn a changed situation into a properly built court filing.

This article explains the standard in plain terms, the kinds of changes Texas courts have accepted, the evidence that shows a change, and the steps to file or respond.

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TL;DR

The legal test has two parts: the change must be in the child’s best interest, and circumstances must have materially and substantially changed since the last order.
“Material” and “substantial” are both required. A change that is small, temporary or unrelated to the modification you want usually falls short.
Courts compare conditions when the order was made with conditions at the modification hearing, so dated, specific evidence matters.
Changing the child’s primary residence while the case is pending requires meeting a separate, stricter test, and filing within one year of the last order brings an affidavit requirement.
An agreed modification still needs a judge’s approval, and a contested one is decided by the judge.

What “material and substantial change” means
Two other routes to modification
Changes Texas courts have accepted
How the court decides best interest
Building your evidence
Filing and what happens if the other parent contests
Emergencies while a modification is pending
Recent legislative changes
Our perspective
How Anna Din’s office can help
FAQ
Sources

What “material and substantial change” means

The rule comes from Texas Family Code § 156.101. A court may modify an order on conservatorship (who holds the legal rights and duties for the child), the terms of conservatorship, or possession and access (the visitation schedule) if modification is in the child’s best interest and the circumstances of the child, a conservator or another party affected by the order have materially and substantially changed.

The starting point for measuring change is the earlier of two dates: when the judge rendered the order, or when the parties signed a mediated or collaborative law settlement agreement the order is based on.

The Texas Bar’s family law practice guide (2025 edition) adds three practical points:

The change must be both substantial and material. A changed circumstance alone does not meet the standard.
The change must be material to the modification you are asking for. A parent’s new job may matter to a schedule change but not to a request about decision-making rights.
Courts compare conditions at the time of the earlier order with conditions at the modification hearing. There are no rigid guidelines, so each case turns on its facts.

Put simply, the judge asks: what was true then, what is true now, and does the difference justify changing this particular part of the order for this child?

Two other routes to modification

A material change is the most common ground, but § 156.101 lists others. They include a child who is 12 or older and has told the court, in chambers, which parent they prefer to live with, and a parent with the right to set the child’s primary residence who has voluntarily given up primary care and possession to someone else for at least six months. The statute’s text sets out the exact wording and exceptions, such as temporary military deployment. In every route, the court must still find that modification is in the child’s best interest.

Changes Texas courts have accepted

Texas has no checklist of qualifying events, but appellate courts have repeatedly recognized certain categories. The Texas Bar guide, citing a 2018 Houston appeals court decision, lists five:

Remarriage by a party
Poisoning of the child’s mind against the other parent
A change in the child’s home surroundings
Mistreatment of the child by a parent or stepparent
A parent becoming an improper person to exercise custody

Remarriage alone is not enough. It counts only when it is shown to affect the parent-child relationship. The same guide notes that a course of conduct by the parent with primary custody that hampers the child’s chance to form a healthy relationship with the other parent can support a change in who has primary custody.

Everyday situations that parents ask about

These situations often prompt a parent to call a lawyer. Whether any of them qualifies depends on how they affect your child and the order you are trying to change:

A parent moves. A long-distance move can make the existing schedule unworkable. The question is how it changes the child’s school, routine and time with each parent.
A work schedule changes. A new shift, travel or loss of a job can make exchanges impossible under the current order.
Safety concerns arise. Substance abuse, family violence or neglect in a home goes directly to the child’s welfare.
The child’s needs change. A medical diagnosis, new schooling needs or a teenager’s changing situation can make an old schedule a poor fit.
A parent stops following the order. Repeated missed exchanges, interference with visits or withholding the child can be raised as a change in conduct, and may also call for enforcement of the existing order.

Notice what these have in common: each is about the child’s day-to-day life, not about a parent’s frustration with the other. Judges look for effects on the child.

How the court decides best interest

Even a clear change in circumstances does not win by itself. Best interest is always the primary consideration in custody matters under Texas Family Code § 153.002, as the Texas Children’s Commission’s attorney toolkit explains. Judges weigh factors such as the child’s age and vulnerabilities, any history of abusive or assaultive conduct, and any history of substance abuse.

The same toolkit describes the kind of evidence that speaks to best interest: testimony about the child’s bonds with family and community, how often a parent actually visits, criminal history, and demonstrated changes in a parent’s behavior. Although that resource was written for child protection cases, the topics show what Texas judges want to hear about in any case.

Factors Texas judges weigh in custody decisions

Our own guide to what Texas courts actually consider in custody decisions goes deeper on these factors, and our overview of legal versus physical custody explains the terms you will see in an order.

Building your evidence

Because the court compares “then” with “now,” your job is to document both. A practical approach:

Get the current order and read it closely. Note its date, or the date of the mediated settlement agreement behind it. Everything is measured from there.
Write a timeline. List dated events since the order: the move, the job change, the missed exchanges, the school problems.
Connect each event to the child. For every item, write one sentence on how it affects your child’s schedule, health, schooling or safety.
Gather records. School reports, medical records, text messages and emails between parents, calendars, and police reports where relevant.
Identify witnesses. Teachers, doctors, relatives or others with firsthand knowledge can speak to what they saw.
Keep your communications civil. Judges read messages. Short, factual and child-focused messages help your case.
Decide exactly what you want changed. A material change must relate to the specific modification you request, so be clear about whether you seek a new schedule, a different decision-making arrangement or a change in primary residence.

A lawyer’s role in this stage is to sort which facts meet the legal standard and which are just frustrations, and to turn the record into admissible evidence. Our firm’s approach is built around preparation and clear communication so you know where your case stands.

Filing and what happens if the other parent contests

A custody order that came from a suit affecting the parent-child relationship (SAPCR, the Texas court case that sets custody, visitation and support) is changed by filing a modification suit in court, according to the Texas State Law Library’s guide. If the other parent files one against you, you need to respond, and the library links to instructions and a response kit.

According to Texas Access, parents and sometimes other affected conservators can file. The petition can be agreed or contested. An agreed modification still needs the judge’s approval. If there is no agreement, the judge weighs both sides and decides.

In practice, the steps look like this:

Confirm which court issued the current order, since that court generally keeps authority over modifications.
Prepare the petition describing the order, the changes and the relief you want.
File it and have the other parent formally served.
Attend any temporary orders hearing, then mediation if ordered.
Try to reach an agreed order. If you cannot, prepare for a hearing or trial.

If you are in Harris County, see our page on Harris County custody modification. Our article on when you can modify a child custody order covers timing questions in more detail.

Filing within one year of the last order

If you ask to change which parent has the exclusive right to designate the child’s primary residence within one year of the last order, § 156.102 requires you to sign and attach an affidavit. The affidavit has to state facts supporting the request. Without adequate facts, the court may refuse the relief, so the affidavit needs careful drafting.

Emergencies while a modification is pending

If the situation cannot wait for a final hearing, a parent can ask for a temporary order. Texas limits this. Under § 156.006, while a modification suit is pending, a court may not change who designates the child’s primary residence unless it is in the child’s best interest and one of three grounds applies:

The child’s present circumstances would significantly impair physical health or emotional development.
The designated parent voluntarily gave up primary care and possession for more than six months.
The child is 12 or older and has told the judge their preference in chambers.

When a motion rests on significant impairment, § 156.006(b-1) requires an affidavit based on personal knowledge. If the affidavit lacks adequate facts, the court must deny the relief and not set a hearing. If it is adequate, the court must set one.

More generally, temporary conservatorship and support orders usually require notice and a hearing under § 105.001. If a child is in immediate danger, call 911. If you or your child need protection from violence, a protective order may be the right tool, and you can read about it in our guide to protective orders in Texas.

Recent legislative changes

The 2025 Texas legislative session changed some family law provisions effective September 1, 2025. The State Bar of Texas reports that HB 2350 expanded who may file suits affecting the parent-child relationship, including changes to the relatives who may file when both parents are deceased and a requirement of exclusive care, control and possession for at least six months. These changes mainly affect nonparents. For a parent seeking to modify an existing order, the material and substantial change standard remains the core test. If your case involves a grandparent or other relative, read our article on nonparent custody in Texas.

Our perspective

Parents usually come to us at the end of a long stretch of frustration. The schedule no longer fits their child’s life, and they want to know whether the court will agree.

Our answer starts with the child. We ask what has changed, when, and how it touches your child’s school, health, safety and time with each parent. A clear, dated account of those facts is worth more than a long list of grievances.

We believe in preparation and in plain communication. You should know what the standard is, which of your facts meet it, what the other side is likely to say and what each step of the case involves. That is how we approach custody modifications, enforcement and related matters for families in The Woodlands, Houston and surrounding communities.

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How Anna Din’s office can help

If you believe your family’s circumstances have materially changed, the Law Office of Anna Din handles custody and support modifications and enforcement for families in The Woodlands, Houston and surrounding Texas communities. We will look at your current order, the changes since it was made and what you want to change, and tell you how the standard applies to your facts.

Learn more about child custody, modifications and enforcement, or reach us through the Law Office of Anna Din.

FAQ

Is a change in my job or income a material and substantial change?

It can be, but only if it affects the child or the part of the order you want changed. A new work schedule that makes the current visitation exchanges impossible is more relevant than a raise. Courts look at the facts of each case rather than a fixed list.

Can I modify custody right after the order is signed?

You can file, but the change must have happened since the order or the settlement agreement it is based on. If you ask to change the primary residence designation within one year, you must attach a supporting affidavit under § 156.102. Because the bar is high early on, it helps to have a lawyer review your facts first.

Does my child’s preference decide the case?

Not by itself. A child who is 12 or older may state a preference to the judge in chambers, and that can be a ground for modification. The judge must still decide whether the change is in the child’s best interest.

Does a custody modification also change child support?

It can. When possession or primary residence changes, support often needs to be revisited as well. Our child custody and support practice handles both parts together so the orders match.

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Questions About Your Situation?

Every family is different. Schedule a confidential consultation with Anna Din to discuss your options.

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