Child Support Modification in Texas

Your financial situation or your child’s needs may look very different today than they did when the court first set your child support order. Texas law recognizes this. Under Texas Family Code Section 156.401 ^[1], a court can modify a child support order when there has been a material and substantial change in circumstances since the order was last set or reviewed. You do not have to accept an order that no longer fits your reality.

A modification is not automatic, and it is not a formality. The standard is specific, the timeline matters, and the outcome will affect your family’s finances for years. Working with a board-certified family law attorney who knows Tarrant County courts gives you the clearest path to a result that reflects where things actually stand today.

What Counts as a Material and Substantial Change

Texas courts will not modify child support just because one parent asks. You must show that something meaningful has changed since the order was entered or last modified. The most common qualifying circumstances include:

• Significant income change: Either parent has experienced a major increase or decrease in earnings since the last order.
• Job loss or disability: A parent has lost employment or become unable to work at the same capacity.
• Change in the child’s needs: Medical expenses, educational requirements, or special needs have shifted substantially.
• Change in the child’s living situation: The child is now living primarily with the other parent, or a new conservatorship arrangement is in place.
• Change in health insurance coverage: The parent who carries health insurance for the child has gained, lost, or changed that coverage.
• Additional children: A parent now has a legal obligation to support other children not covered by the current order.
• 2025 cap increase (for pre-September 2025 orders): Texas raised the child support net resources cap from $9,200 to $11,700 per month effective September 1, 2025. If your order was entered before that date and the paying parent’s income exceeds the old cap, this legislative change may qualify as a material and substantial change supporting a modification.

Texas law also provides an alternative ground for modification: if it has been three years since the order was set and the current amount differs from the Texas child support guideline amount by either 20 percent or $100 per month, that alone can justify a review. Texas Family Code Section 156.401(a)(2) ^[2] sets this as a separate, streamlined basis for seeking modification without proving a material change.

How Texas Calculates the New Support Amount

If you successfully show grounds for modification, the court will calculate a new support amount using the same guideline framework that governs initial child support orders. Texas uses a percentage-of-net-resources model under Texas Family Code Section 154.125. ^[3]

The standard guideline percentages for monthly net resources are:

• 1 child: 20 percent
• 2 children: 25 percent
• 3 children: 30 percent
• 4 children: 35 percent
• 5 or more children: 40 percent

Net resources are calculated from gross income minus specific deductions including federal income taxes, Social Security taxes, state income taxes, union dues, and health insurance premiums for the child. The court applies the guideline percentage to net resources up to the statutory cap, which increased to $11,700 per month effective September 1, 2025 (raised from $9,200 by Senate Bill 1936 of the 89th Texas Legislature).

When a parent earns above the $11,700 cap, the court has discretion to order support beyond the guideline amount based on the child’s proven needs and the paying parent’s actual ability to contribute. How you present income and expense evidence in those cases can significantly affect the result.

The Child Support Modification Process: Step by Step

Modification is a court-driven process. You cannot simply agree with the other parent and expect a new amount to be legally enforceable without a court order. Here is how the process works in Tarrant County:

1. Confirm grounds. Verify that you have a qualifying change in circumstances, or that the three-year / 20-percent threshold applies. Proceeding without grounds wastes time and money.
2. Gather documentation. Collect proof of the changed circumstance: recent pay stubs, tax returns, medical records, employment records, or documentation of the child’s changed needs.
3. File a petition to modify. File a Petition to Modify the Parent-Child Relationship in the court that originally issued the order. In Tarrant County, this is typically filed in the district court that retains jurisdiction over the case.
4. Serve the other parent. The other parent must be formally served with the petition. Their response period is typically 20 days after service.
5. Attempt resolution through negotiation or mediation. Many modification cases settle before a hearing. Both parties can agree on a new amount, present that agreement to the court, and obtain a modified order without a contested hearing. This is almost always faster and less costly than going to trial.
6. Attend the hearing or trial if needed. If the parties cannot agree, the case proceeds to a hearing before a judge. The judge will hear evidence, apply the statutory guidelines, and issue a new order.
7. Receive the modified order. Once signed by the judge, the new order supersedes the prior one. Enforcement runs from that date forward.

Can a Modification Be Made Retroactive?

Generally, no. Texas courts will not reduce past-due support through a modification. Under Texas law, accrued child support arrears cannot be retroactively reduced or forgiven by or court order. This is one of the most important reasons to file promptly when your circumstances change.

If you are behind on payments because of a hardship, arrears require a separate legal strategy from the modification itself. An attorney can advise you on your options for addressing existing arrears alongside a petition to modify.

Agreed Modifications: When Both Parents Are on the Same Page

If you and the other parent agree on a new support amount, Texas law allows you to formalize that agreement without a contested hearing. Both parties sign an agreed order, which is then presented to the judge for approval. The court will review it to confirm the amount reflects the guideline calculation or that there is a documented basis for a deviation.

An informal agreement between parents, even in writing, does not modify the court’s order. Only a signed court order is enforceable. Until a new order is in place, the original amount remains the legal obligation. This is a critical distinction that many parents learn the hard way.

How Cutrer Law Group Can Help

Cutrer Law Group is led by a family law attorney who is board-certified by the Texas Board of Legal Specialization, with more than 30 years working with Tarrant County families through all stages of child support disputes, including modifications. Our team knows how local courts evaluate changed circumstances, handle income disputes, and approach contested hearings when parties cannot agree.

Our approach as family law attorneys is to pursue the most efficient path to a fair result. That usually means working toward a negotiated modification that avoids a contested hearing. When the other party is not cooperative or the financial picture is genuinely disputed, we are prepared to present your case fully to the court.

Whether your income has dropped, the other parent’s circumstances have changed significantly, or you simply need the order to reflect what your child’s life actually costs today, we will help you build a clear, documented case and guide you through each step.