Texas parents navigating divorce or custody proceedings need clear information about child support calculations. The state uses a percentage-based formula that many find confusing, particularly when determining what income counts and how deductions work. Understanding these calculations helps both custodial and non-custodial parents set realistic expectations and budget for their financial obligations.
Whether you are paying child support, receiving it, or wondering whether an order may need to change, understanding how Texas calculates support can help you better understand what to expect. In many cases, the process starts with the paying parent’s net monthly resources and the guideline percentage tied to the number of children the support order will cover.
Key Takeaways for How Child Support Is Calculated in Texas
- Texas usually calculates child support by applying a guideline percentage to the obligor’s net monthly resources.
- The standard percentages are 20% for one child, 25% for two children, 30% for three children, 35% for four children, and 40% for five children.
- Net resources include most income sources, and Texas allows only limited deductions.
- Courts must also address medical support and dental support.
- The current guideline cap is $11,700 in net monthly resources for cases affected by the September 1, 2025 update.
- Courts may order more or less than the guideline amount in some situations.
- Existing child support orders do not change unless a parent gets a court-approved modification.
Understanding Texas Child Support Guidelines
Texas Family Code Section 154.125 establishes percentage guidelines for calculating child support based on the paying parent’s net resources. These percentages apply to net monthly resources up to $11,700. The $11,700 cap applies to new support orders and many modification cases finalized on or after September 1, 2025.
In general, courts start with the guideline amount when calculating child support. The court must order the guideline amount unless the parties agree to different amounts, the paying parent proves that applying the guidelines would be unjust or inappropriate, or the child has medical, educational, developmental, or other needs that warrant a different level of support.
What Are Net Resources?
Net resources is the amount Texas uses to calculate child support payments. Texas Family Code Section 154.062 defines net resources as income from all sources minus only specific allowed deductions.
Income Sources Included in Net Resources
Texas law counts nearly every income source when calculating net resources. In most cases, recurring income counts toward net resources. Income included in calculations may include wages, salary, overtime pay, tips, gratuities, bonuses, commissions, self-employment income, rental income, interest, dividends, royalty income, retirement income, Social Security benefits (excluding SSI), disability benefits, and unemployment benefits.
Courts generally exclude return of principal or capital, accounts receivable until actually received, and means-tested public assistance benefits such as Supplemental Security Income (SSI), the Supplemental Nutrition Assistance Program (SNAP), and Temporary Assistance for Needy Families (TANF).
Allowed Deductions From Gross Income
Texas law permits only specific deductions when calculating net resources from gross income. These deductions, allowed by Texas Family Code Section 154.062(b), include Social Security taxes, federal income tax based on applicable withholding schedules, union dues, and health insurance premiums paid for the children receiving support.
These are the only permitted deductions. Texas has no state income tax, so no state tax deduction applies. Texas allows only a limited number of deductions because child support is intended to take priority over many other personal expenses. As a result, parents cannot reduce their child support obligation by pointing to credit card debt, retirement contributions, or other financial commitments. Parents cannot deduct HSA contributions, child care costs, expenses for other children, or most other financial obligations when calculating net resources.
Self-Employment Income Calculations
Self-employed parents often present additional child support questions because gross business receipts do not always reflect the income actually available for support. Courts may review tax returns, profit and loss statements, bank records, and other financial documents to better understand the parent’s available resources.
Courts may also look closely at claimed business expenses. While legitimate business expenses may be considered, some expenses may receive closer scrutiny if they appear to reduce income on paper without clearly reducing the funds actually available to the parent.
Child Support Percentages in Texas
Once net resources are calculated, Texas applies specific percentages based on the number of children before the court.
The guideline percentages are:
- 20% for one child
- 25% for two children
- 30% for three children
- 35% for four children
- 40% for five children
- Not less than 40% for six or more children
These percentages apply to net monthly resources up to the $11,700 cap. Under the current cap, maximum guideline support amounts are $2,340 monthly for one child, $2,925 monthly for two children, $3,510 monthly for three children, $4,095 monthly for four children, and $4,680 monthly for five children.
Medical and Dental Support
Texas Family Code Section 154.182 requires courts to address health insurance coverage for children when issuing child support orders. In many cases, one parent will be ordered to provide health insurance if coverage is available at a reasonable cost.
In many cases, one parent may be ordered to provide health insurance for the child if coverage is available at a reasonable cost. Courts may also require one or both parents to share uninsured medical expenses, such as copays, deductibles, prescriptions, and other healthcare costs that insurance does not cover.
Dental support is handled separately as well. A court may order one parent to provide dental insurance, require cash dental support, or direct the parents to share uninsured dental expenses. Because of these additional obligations, the final amounts paid by the support-paying parent may be higher than the basic guideline calculation alone.
Step-by-Step Child Support Calculation Examples
Understanding how calculations work in practice helps parents anticipate support obligations and verify whether proposed amounts are accurate.
Example 1: Moderate Income, One Child
A father earns $5,000 monthly gross income as an employee. His deductions include $382.50 for Social Security and Medicare taxes. Federal income tax totals $500. Children’s health insurance costs $150. Total deductions equal $1,032.50.
His net resources are $3,967.50 ($5,000 minus $1,032.50). Support for one child at 20% equals $793.50 monthly.
Example 2: Higher Income, Two Children
A mother earns $8,000 monthly gross income. Her deductions include $612 for Social Security and Medicare taxes. Federal income tax totals $900. Children’s health insurance costs $200. Total deductions equal $1,712.
Her net resources are $6,288. Support for two children at 25% equals $1,572 monthly.
Example 3: Net Income Below the Cap
A father earns $15,000 monthly gross income. His deductions include $1,147.50 for Social Security and Medicare taxes. Federal income tax totals $2,200. Children’s health insurance costs $300. Total deductions equal $3,647.50.
His net resources are $11,352.50. Because this falls below the $11,700 cap, the full amount is subject to guideline percentages. Support for three children at 30% equals $3,405.75 monthly.
Example 4: Income Exceeding the Cap
A mother earns $18,000 monthly gross income. After all allowed deductions, her net resources total $13,500. This exceeds the $11,700 cap. Guideline support on the cap for two children at 25% equals $2,925 monthly.
Courts may consider whether additional support is appropriate based on the child’s “proven needs” and other circumstances presented in the case. Proven needs generally refers to expenses that can be supported with evidence and that relate to the child’s care, education, health, or overall well-being.
How the Child Support Cap Affects Higher-Income Cases
One of the most significant recent changes to Texas child support guidelines was the increase in the net resource cap from $9,200 to $11,700. That $11,700 cap remains in effect in 2026 and may affect the amount of support ordered in new cases and some modification proceedings. (The increase in the cap does not automatically change existing child support orders. Parents must seek a modification through the court before the updated guidelines will affect the support amount.)
For parents with net resources above $11,700 per month, courts generally begin by calculating guideline child support using the capped amount. Courts may then consider whether additional support should be ordered based on the child’s “proven needs” related to the child’s care, health, education, development, or overall well-being. In addition to the child’s “proven needs,” a court deciding whether support above the guideline amount may be appropriate can also consider the parent’s ability to contribute, the amount of possession time each parent exercises, and any child care expenses related to employment.
Disputes in higher-income cases often focus on what qualifies as a child’s proven needs. Parents may present evidence involving private school tuition, tutoring, extracurricular activities, specialized medical care, summer programs, or other expenses connected to the child’s well-being. Courts evaluate the evidence presented and decide whether support above the guideline amount is appropriate under the circumstances.
When Courts Deviate From Guidelines
Texas Family Code Section 154.123 identifies factors courts may consider when determining whether guideline child support would be unjust or inappropriate under the circumstances. Although guideline child support is the starting point in many cases, courts may order a different amount when the facts support it.
For example, courts may consider financial resources, possession schedules, childcare expenses, medical costs, educational expenses, and other circumstances affecting the child’s best interests. When a court orders an amount different from the guideline amount, it generally must explain why the different amount is appropriate.
Multiple Children With Different Parents
When a parent has children with more than one partner, child support calculations become more complex. Texas law requires courts to consider a parent’s legal responsibility to support other children when determining support obligations according to Texas Family Code Section 154.128.
When a parent already pays support for children from another relationship, the guideline percentages used in a new case may be adjusted. The purpose of these adjustments is to help ensure that all children receive support while recognizing the parent’s existing obligations.
Because multiple-family situations can significantly affect guideline calculations, parents should avoid assuming the standard percentages will automatically apply.
Possession Time and Support
Even with true 50-50 possession schedules, Texas courts do not automatically eliminate child support. If one parent earns significantly more than the other, support may still be ordered to help meet the child’s needs across both households.
Parenting time can affect the overall analysis, but it does not automatically result in a zero-support order. Courts still look at income, expenses, and the particular facts of the case when deciding whether support is appropriate.
Modification of Child Support Orders
Child support orders may be modified when circumstances materially and substantially change. In general, this means there has been a significant change in income, the child’s needs, or another important circumstance since the current order was entered. Texas Family Code Section 156.401 addresses when a court may modify an existing support order.
Common reasons parents seek modifications include:
- A significant increase or decrease in income
- Job loss or a change in employment
- Changes in the child’s needs
- Changes to health insurance costs
- Changes in custody or possession schedules
Many parents are also asking whether the 2025 increase in the child support cap affects existing orders. While the updated cap may affect some cases, support does not change automatically. A parent must request a modification and obtain a new court order before the support amount changes.
Parents should also understand that support obligations remain in effect until they are modified by the court. A parent who experiences a downward change in income but does not seek a modification may continue to owe support under the existing order. Unpaid support can accumulate as arrears, which is the legal term for past-due child support, and may result in additional legal consequences.
Frequently Asked Questions About Texas Child Support Calculations
1. What Is the Difference Between Gross Income and Net Resources?
Gross income includes all wages and earnings before deductions. Net resources are what remain after subtracting specific deductions allowed under Texas law, such as Social Security taxes, federal income tax, union dues, and children’s health insurance premiums. Retirement contributions, debt payments, and other expenses do not reduce net resources for child support purposes.
2. Do Bonuses and Overtime Count Toward Child Support?
Yes. Texas law generally includes bonuses, overtime pay, commissions, and other variable income when calculating net resources. In some situations, courts may average variable income over time to determine an appropriate monthly amount.
3. Can Judges Order More Than the Guideline Percentages?
Yes. Courts may order support above the guideline amount when circumstances justify a deviation. For example, a court may consider a child’s proven needs, extraordinary medical expenses, educational costs, or other factors affecting the child’s best interests.
4. What Happens If I’m Self-Employed?
Courts examine tax returns, financial statements, and other records to determine the income actually available for support. Legitimate business expenses may be deducted, but courts often scrutinize expenses carefully to distinguish between necessary business costs and personal expenses.
5. Does Child Support End Automatically at Age 18?
In many cases, child support ends when a child turns 18 or graduates from high school, whichever occurs later. However, support may continue in certain situations, including when a child has a disability that requires ongoing support under Texas law.
6. What Happens If I Lose My Job?
Job loss or a significant reduction in income may justify a request to modify child support. However, support amounts do not automatically change because employment circumstances change. Parents must seek a modification through the court.

Get Legal Guidance for Texas Child Support Calculations
Child support calculations involve more than applying a percentage to a paycheck. Determining net resources, evaluating self-employment income, addressing medical support obligations, and handling requests for modifications can all create challenges for Texas parents.
Whether you are trying to understand a proposed child support amount, seeking a modification, or dealing with a dispute over income calculations, the family law attorneys at Bailey & Galyen can help you understand your options. Contact Bailey & Galyen today to schedule a consultation. We are available 24/7. Hablamos español en nuestra oficina.
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