Texas Child Support Calculation Adjusted Gross Income Or Taxable Income

Use this premium calculator to estimate Texas guideline child support when you only have adjusted gross income, taxable income, or gross income available. Texas courts generally focus on monthly net resources, not AGI or taxable income alone, so this tool converts your income input into an estimated net-resources figure and then applies Texas guideline percentages.

Understanding Texas child support: adjusted gross income or taxable income?

Many parents begin a Texas child support calculation with a tax return and then immediately ask a very common question: should the court use adjusted gross income, taxable income, or some other number? The short answer is that Texas guideline child support is generally based on the paying parent’s monthly net resources, not directly on federal adjusted gross income and not directly on taxable income. That distinction matters because AGI, taxable income, and Texas net resources can differ substantially, especially when a parent has pre-tax deductions, self-employment income, overtime, bonus income, or varying insurance costs.

If you are searching for “texas child support calculation adjusted gross income or taxable income,” you are probably trying to translate numbers from a W-2, a pay stub, or an IRS return into something Texas courts actually use. This guide explains that process in practical terms. It also shows why two parents with the same AGI may still end up with different guideline support estimates once legally relevant deductions and the number of supported children are considered.

In Texas, courts typically start with a parent’s available income and work toward a monthly net resources figure. From there, guideline percentages are applied: 20% for one child, 25% for two, 30% for three, 35% for four, 40% for five, and not less than 40% for six or more children, subject to statutory rules, adjustments for other children supported, and the net-resource cap.

Why AGI and taxable income are not the same as Texas net resources

Adjusted gross income is a federal tax concept. It usually reflects income after certain above-the-line deductions such as some retirement contributions, health savings account deductions, student loan interest deductions, or self-employment adjustments. Taxable income is even further removed because it generally comes after subtracting the standard deduction or itemized deductions. By contrast, Texas child support looks at what state law defines as resources available for support, then subtracts certain permitted items to arrive at net resources.

That means taxable income is often too low to use by itself as a direct child support base. AGI may be a closer starting point than taxable income, but even AGI is still not a perfect substitute for Texas net resources. This is why attorneys, judges, and child support officers often review pay records, tax returns, employer benefit deductions, self-employment schedules, and insurance allocations instead of relying on one line from a federal return.

Common sources that may be counted in Texas net resources

• Salary and wages
• Overtime, commissions, tips, and bonuses
• Self-employment and business income
• Rental income, severance, retirement, and unemployment benefits
• Certain dividends, interest, trust income, and other recurring cash flow

Common items often considered for deduction

• Social Security taxes
• Federal income tax based on applicable Texas rules and assumptions
• Union dues
• The child’s health insurance and sometimes dental coverage paid by the obligor

How this calculator approaches the problem

The calculator above is designed for people who may only have one headline income number available, such as AGI or taxable income from a return. It works in three broad steps. First, it determines a starting annual income amount based on the type of income you selected. If you select gross income, the calculator treats that number as your annual gross. If you select AGI, it uses AGI as an annual starting point, recognizing that AGI may already reflect above-the-line adjustments. If you select taxable income, the calculator estimates an annual pre-deduction figure by adding back the current federal standard deduction based on your filing status.

Second, it estimates monthly net resources by calculating federal income tax and payroll tax, then subtracting the allowable monthly deductions you enter, such as union dues and child health or dental insurance. Third, it applies the Texas guideline percentage for the number of children before the court, and it adjusts that percentage if you also support other children. Finally, it applies the Texas monthly net-resource cap for guideline purposes. If your estimated monthly net resources exceed that cap, the standard guideline percentage is applied to the capped amount unless a court decides that proven child needs justify a higher amount.

Texas guideline percentages at a glance

Children before the court	Standard guideline percentage	Example using $5,000 monthly net resources
1	20%	$1,000 per month
2	25%	$1,250 per month
3	30%	$1,500 per month
4	35%	$1,750 per month
5	40%	$2,000 per month
6 or more	Not less than 40%	At least $2,000 per month

These percentages are the baseline. If the paying parent is also legally supporting other children not before the court, Texas uses adjustment tables that may reduce the percentage. For example, a parent supporting one child before the court and one other child may be closer to 17.50% rather than 20%. This is one reason an internet estimate based only on AGI can be significantly off.

The statutory cap on monthly net resources

Texas guideline support usually applies only up to a capped level of monthly net resources. The cap changed in recent years and, as of September 1, 2023, the guideline cap commonly referenced in practice is $9,200 in monthly net resources. If a parent’s net resources are above that amount, the guideline percentage is generally applied to the first $9,200. Additional support above that level may require proof that the child’s proven needs justify it.

This matters because high-income cases are often where AGI, taxable income, and actual available resources differ the most. Executive compensation, stock awards, partnership income, and self-employment deductions can all complicate the analysis. In those cases, the tax return is important, but it is only one piece of the larger financial picture.

Comparison table: AGI, taxable income, and estimated Texas support impact

Annual figure	Single filer example	What it usually means	Potential support issue
Gross income	$90,000	Top-line earnings before many tax adjustments	Often closer to the true starting point, but still not final net resources
Adjusted gross income	$85,000	Income after certain above-the-line deductions	Useful starting point, but may understate or overstate Texas resources
Taxable income	$70,400	Income after standard deduction or itemized deductions	Usually too low to use directly for Texas guideline support
Estimated monthly net resources	Varies	Texas support base after allowed deductions	This is usually the number guideline percentages are applied to

Real statistics that help put child support calculations in context

Real-world payment data show why precision matters. According to federal child support program data published by the U.S. Department of Health and Human Services, state child support systems process billions of dollars in collections every year, and a large share of all current support depends on regular wage withholding and guideline-based orders. In Texas, the Office of the Attorney General administers one of the largest child support programs in the country, serving millions of parents and children. When a state program operates at that scale, standardized formulas like guideline percentages and net-resource rules become essential for consistency.

• Texas has no state income tax, which simplifies one part of the calculation compared with some other states.
• Texas guideline percentages are fixed by statute, making the main disputes revolve around income definition, deductions, parenting facts, and proven child needs.
• The $9,200 monthly net-resource cap creates a major dividing line between ordinary and high-income support cases.

Step-by-step example

1. A parent has $85,000 of annual AGI.
2. The parent files as single and pays $150 per month for the child’s health and dental coverage.
3. The calculator estimates federal income tax and payroll taxes from the annual figure.
4. It converts that annual amount to monthly net resources after the estimated deductions.
5. If there is one child before the court and no other supported children, it applies 20%.
6. If there is one child before the court and one other supported child, it applies the adjusted percentage of 17.50%.

Notice the logic: the percentage is not applied to AGI itself. It is applied to estimated monthly net resources after the required conversion work has been done. That is the key reason so many online searches about adjusted gross income or taxable income produce confusing answers. They are often discussing the wrong starting point.

Special issues that can change the result

Self-employment income

Self-employed parents often have the largest gap between taxable income and actual resources. Business deductions that are legitimate for federal tax purposes do not always reduce support to the same extent in family court. Judges may examine whether deductions are ordinary, necessary, recurring, or partly personal.

Bonus, overtime, and commissions

Texas courts can include irregular income if it is consistent or reasonably expected. A support order based solely on base salary may be too low if the parent routinely earns substantial bonus compensation.

Possession schedule and deviations

Texas guideline support in standard cases does not automatically change just because possession time is significant. However, courts can deviate from guidelines when the facts justify it. This means a guideline estimate is extremely useful, but it is not always the final courtroom number.

High-income and proven-needs cases

Once monthly net resources exceed the cap, further support may depend on evidence of the child’s proven needs. That can include educational costs, medical needs, therapy, transportation, and other documented expenses. In those cases, a tax return line item is only the beginning of the analysis.

Best practices when using an online estimate

• Use your most recent full-year tax return and your most recent pay records together.
• Do not assume taxable income equals support income.
• Separate your child’s health insurance cost from your own coverage if possible.
• If you are self-employed, review business deductions carefully.
• If your income is over the net-resource cap, treat any estimate as a starting point, not a final legal answer.

Authoritative Texas and federal references

For official and highly reliable guidance, review the following sources:

• Texas Attorney General Child Support Division
• Texas Family Code Chapter 154, Child Support
• U.S. Department of Health and Human Services, Office of Child Support Services

Bottom line

If you are trying to figure out a Texas child support obligation from adjusted gross income or taxable income, the most important takeaway is simple: Texas generally uses monthly net resources as the support base. AGI can be a helpful starting point. Taxable income can be a rough clue. But neither number should be treated as the final child support figure without converting it into a Texas-style net-resource estimate.

The calculator on this page gives you a practical estimate using the income figure you actually have, while still following the logic Texas uses in guideline cases. That makes it useful for early planning, settlement discussions, and preliminary budgeting. For any contested matter, self-employment issue, high-income case, or dispute over deductions, you should compare the estimate with official Texas guidance and professional legal advice.

This calculator is an educational estimate, not legal advice. Texas child support orders can vary based on evidence, statutory updates, local practice, health insurance allocations, proven child needs, and court discretion.