Texas child support payments vary widely because the state uses a formula based on the paying parent's income, not a fixed amount

There is no single "average" child support payment in Texas that applies to everyone. The amount depends on how much the paying parent earns, how many children need support, and whether the parents share custody. Texas courts use the Child Support Guidelines, which calculate support as a percentage of the paying parent's gross monthly income — starting at 20% for one child and going up to 40% for five or more children. A parent earning $3,000 per month with one child pays roughly $600 monthly; a parent earning $6,000 per month with the same child pays about $1,200.

The state does publish data on what people actually pay, but those numbers shift year to year and vary significantly by county. What matters more than an "average" is understanding how your specific situation gets calculated and what happens if circumstances change.

Key Takeaways

  • Texas calculates child support as a percentage of gross monthly income: 20% for one child, 25% for two, 30% for three, 35% for four, and 40% for five or more.
  • The calculation applies only to income up to a certain cap, which the state adjusts yearly — currently around $9,200 per month, though courts can order support above that cap in high-income cases.
  • Actual payments range from under $100 monthly in low-income cases to several thousand dollars monthly in high-income families, with no true "average" that represents most situations.
  • The paying parent's custody time, health insurance costs, and daycare expenses can all reduce the guideline amount through adjustments called deviations.

How Texas calculates the percentage based on number of children

The Texas Family Code sets out a straightforward formula: take the paying parent's gross monthly income and apply a percentage based on how many children are in the case. One child is 20%, two children is 25%, three is 30%, four is 35%, and five or more is 40%. That percentage applies to all income up to the state's current cap, which changes each year to account for inflation.

For example, if a parent earns $4,000 gross per month and owes support for two children, the guideline amount is $4,000 × 0.25 = $1,000 per month. If that same parent earns $10,000 per month, the calculation only applies to income up to the cap (currently around $9,200), so the payment would be $9,200 × 0.25 = $2,300, not $2,500. The cap prevents the percentage from applying to every dollar earned, which protects very high earners from paying 40% of all income.

Courts can order payments above the cap if they find good reason — for instance, if the paying parent has substantial assets, a history of high income, or the children's standard of living before separation was very high. These cases require the judge to state in writing why the guideline amount would be unjust or inappropriate.

What deviations can lower or raise the payment

The guideline percentage is a starting point, not a ceiling. Texas law allows judges to adjust the amount up or down if certain circumstances apply. The most common downward adjustments happen when the paying parent has significant custody time (usually 40% or more of overnights), pays for the children's health insurance, or covers daycare costs. Each of these can reduce the guideline amount by a specific formula.

For example, if a parent has the children 40% of the time and would otherwise owe $1,000 per month, the custody adjustment might lower that to $600 or $700, depending on the exact split and the other parent's income. If the paying parent also carries the health insurance, that premium gets subtracted from their income before the percentage is applied, which further reduces the payment.

Upward adjustments are less common but do happen. A judge might increase the payment if the paying parent has significant assets beyond monthly income, if they deliberately reduced their income to avoid support, or if the children have special needs or extraordinary expenses like private school tuition. The judge must document the reason for any deviation from the guideline in the court order.

Income cap and how it affects high earners

Texas sets an annual cap on the income used to calculate support. For 2024, that cap is approximately $9,200 per month, though the state adjusts it each January based on inflation. This means a parent earning $15,000 per month pays support on only $9,200 of that income, not the full amount.

However, the cap does not prevent courts from ordering higher payments. If a judge finds that the guideline amount would be unjust — usually because the paying parent has very high income, substantial assets, or the children's needs are extraordinary — the judge can order support above the cap. The order must explain why the cap amount is inappropriate. This happens most often in cases where one parent earns significantly more than the other or where the children have documented special needs.

Parents earning above the cap should understand that while the guideline calculation stops at the cap, they are not automatically protected from a higher order. The judge has discretion, and the burden is on the paying parent to show why the guideline amount would be unfair.

How custody time affects the payment amount

If the paying parent has the children a substantial portion of the time, the support payment usually decreases. Texas recognizes that when both parents share custody, the paying parent's direct expenses for the children go up — they buy food, clothes, and supplies during their time. The adjustment is not dollar-for-dollar, but it is meaningful.

The exact adjustment depends on how many overnights the paying parent has per year. If they have fewer than 73 overnights (roughly 20% of the year), the guideline percentage applies with no custody adjustment. At 73 overnights or more, the calculation shifts. The paying parent's support obligation decreases as their custody time increases, and at very high custody percentages (close to 50-50), the payment may drop significantly or even reverse if the other parent earns more.

Courts use actual overnight counts from the custody order, not estimates. If the order says the parent has "every other weekend plus one weeknight," the court calculates the exact number of overnights that produces over a year and applies the adjustment based on that number. Parents who share custody should make sure their custody order is specific about overnight counts so the adjustment is calculated correctly.

Where to find current income caps and guideline percentages

The Texas Family Code Section 154.125 sets the guideline percentages, and the state updates the income cap each January. The Texas Office of the Attorney General publishes the current cap on its child support website. You can also find this information through your county's district court website or by asking the child support office in your county.

If you are calculating support for your own situation, use the current year's cap — not last year's. The cap changes annually, and using an outdated number will give you an inaccurate estimate. The Attorney General's website also has worksheets and calculators that walk through the guideline calculation step by step, though they are informational only and not a substitute for a court order.

If you are involved in a case, your attorney or the child support office can provide the exact calculation for your income and circumstances. If you do not have an attorney, many county bar associations offer low-cost consultations, and some legal aid organizations provide free help to people who cannot afford representation.

Frequently Asked Questions

What if the paying parent is self-employed or has irregular income?

Self-employed income is calculated by taking gross revenue minus ordinary business expenses, averaged over the past two years or the time the business has existed if less than two years. If income fluctuates significantly, the court may average it or use a recent year as a baseline. Bonus income, commission, and overtime are included as income for support purposes.

Can child support be modified if income changes?

Yes. Either parent can ask the court to modify support if there has been a material and substantial change in circumstances — usually defined as a 10% or more change in either parent's income, a change in custody, or a significant change in expenses. The modification takes effect when the court signs the new order, not retroactively to when income changed.

Does child support end at age 18 in Texas?

Support ends when the child turns 18 and graduates high school, whichever is later. If the child is still in high school after turning 18, support continues until graduation or age 19, whichever comes first. Support also ends if the child marries, joins the military, or is declared emancipated by the court.

What happens if the paying parent loses their job?

Losing a job is a change in circumstances that can justify a modification, but the parent must ask the court for one — the payment does not automatically stop. The court will look at whether the job loss was voluntary or involuntary and whether the parent is making a good-faith effort to find new work. Intentionally quitting to avoid support will not reduce the obligation.

Are there resources to help me understand my specific calculation?

Your county's child support office can explain how the guideline applies to your income. The Texas Attorney General's website has worksheets and a calculator. If you have an attorney, they can walk through the calculation with you. Legal aid organizations in your county may offer free consultations if you cannot afford representation.