Modifying a Texas custody order: when is it possible?

A custody order in Texas is meant to bring stability, not certainty. The Family Code allows modification when circumstances have meaningfully changed, but the standard is high enough that not every change qualifies. This guide explains how Family Code chapter 156 actually works, what kinds of changes Starr and Hidalgo County district courts treat as sufficient, and what the timeline looks like.

The legal standard for modification of conservatorship or possession. Under Texas Family Code section 156.101, a court may modify an order that establishes conservatorship or possession of a child if (1) the modification is in the child’s best interest and (2) the circumstances of the child, a conservator, or a party affected by the order have materially and substantially changed since the date of rendition of the order. Both elements must be present. "Materially and substantially" is a meaningful threshold, and not every change clears it.

Changes courts have found sufficient. A parent’s relocation that meaningfully changes the visitation schedule. A change in the child’s emotional or educational needs (a new diagnosis, a school-performance crisis). A meaningful change in a conservator’s ability to parent (new mental-health diagnosis, new substance-abuse issue, criminal conviction, severe work-schedule change). The child’s preference if the child is twelve or older and willing to confer with the judge under section 153.009. Domestic violence allegations supported by evidence.

Changes courts often find insufficient on their own. A parent’s remarriage. A modest income change. The other parent’s decision to date someone new. A parent’s desire for more time without a corresponding change in the other parent’s circumstances. A dispute that simply rehashes issues litigated in the original case.

The special rule for designation of primary residence. Section 156.102 has a separate one-year rule: a modification to designate a different primary residence cannot generally be filed within one year of the prior order, except in narrow circumstances involving danger to the child, the child’s preference (twelve or older), or voluntary relinquishment by the current primary conservator for at least six months. Plan filings accordingly.

Modification of child support. Section 156.401 provides a separate (and lower) standard: support may be modified if circumstances have materially and substantially changed since the prior order, or if it has been more than three years and the amount differs by either twenty percent or one hundred dollars from the guidelines amount. Income changes are a common basis for modification on both sides.

What the process looks like in Starr County. A modification suit is filed in the same court that rendered the prior order (here, usually the 229th or 381st District Court). Temporary orders may be heard within 30 to 60 days of filing. If the case does not resolve at temporary orders, it proceeds through discovery, mediation, and trial on the same timeline as a contested family-law case, typically six to fifteen months.

What evidence carries weight. School records, medical records, contemporaneous text messages and emails between the parties, photographs, work schedules, daycare schedules, witness affidavits from teachers and family members. Build the evidence file before filing, not after.

For non-citizen parents. A modification proceeding generates a paper trail that may be reviewed in any future immigration application. Discuss with counsel before filing or before signing any agreed order, particularly if there is a contested family-violence allegation or a substance-abuse allegation.

What to do next: if your situation, your former partner’s situation, or your child’s situation has materially changed since your last custody order, call (956) 317-1167 or message the WhatsApp at (956) 500-1371 to schedule a modification consultation. Initial family-law consultations are flat-fee and credited to the case if you retain. Use /contact to write.