Calculator · Tex. Fam. Code § 154.125
Texas child support calculator
Built line by line from Texas’s official guideline and tested against the Attorney General’s own calculator and tax charts. Every step shows the provision it comes from. Nothing you type is sent anywhere.[1]
Key facts: child support in Texas
| Guideline model | Percentage of income[1] |
|---|---|
| Percentages | 20% · 25% · 30% · 35% · 40%[1] |
| Low income | Lower percentages under $1,000[1] |
| Top of the guidelines | $11,700 of net resources a month[2] |
| Official calculator | Monthly Child Support Calculator |
| Guideline last checked | October 26, 2026 |
How the guideline gets there
Each line is one step of Texas’s guideline, with the provision it comes from. Figures are monthly unless a line says “a year”.
The steps appear as you fill in the numbers.
From the official text
What Texas’s guideline says
The guideline is Tex. Fam. Code § 154.125. Open each rule to read the exact words.
- Percentages
20% · 25% · 30% · 35% · 40%
One child 20% of the paying parent’s net resources, two 25%, three 30%, four 35%, five 40%, and six or more not less than the amount for five.[1]
Official text · Tex. Fam. Code § 154.125(b)
“1 child 20% of Obligor's Net Resources”
- Low income
Lower percentages under $1,000
When the paying parent’s monthly net resources are under $1,000, the percentages are 15% for one child up to 35% for five or more.[1]
Official text · Tex. Fam. Code § 154.125(c)
“If the obligor's monthly net resources are less than $1,000, the court shall presumptively apply the following schedule in rendering the child support order:”
- Top of the guidelines
$11,700 of net resources a month
The percentages apply to the first $11,700 of monthly net resources (effective September 1, 2025); above that, a court may add support based on the child’s proven needs.[2]
Official text · OAG 2026 Tax Charts, citing Tex. Fam. Code § 154.125(a-1)
“Effective September 1, 2025, the adjusted amount determined under Subsection (a-1) is $11,700.00.”
- Income counted
Net resources
Resources include wages, self-employment and most other income; Social Security and Medicare taxes, federal income tax for a single filer, state income tax, union dues and the children’s health and dental insurance are deducted.[1]
Official text · Tex. Fam. Code § 154.062
“The court shall deduct the following items from resources to determine the net resources available for child support:”
- Added costs
Medical and dental support on top
The guideline amount assumes the paying parent will also provide medical and dental support for the child.[1]
Official text · Tex. Fam. Code § 154.064
“The guidelines for support of a child are based on the assumption that the court will order the obligor to provide medical support and dental support for the child in addition to the amount of child support calculated in accordance with those guidelines.”
- Other children
Children in another household: adjusted percentages
When the paying parent must also support children in another household, the court applies a credit computation or the multiple-family percentage table.[1]
Official text · Tex. Fam. Code §§ 154.128–154.129
“in lieu of performing the computation under the preceding section, the court may determine the child support amount for the children before the court by applying the percentages in the table below to the obligor's net resources:”
Guideline: Tex. Fam. Code § 154.125 (Texas Constitution and Statutes), checked October 26, 2026.
Confirm with the official calculator
This estimate follows the published guideline. The official calculator is what courts and the state agency use; run your numbers there before you rely on them.
Official calculator · Office of the Attorney General of Texas (Child Support Division)
Monthly Child Support CalculatorLink checked October 26, 2026
Questions
How is child support calculated in Texas?
Texas applies a fixed percentage of the paying parent's monthly net resources: 20% for one child up to 40% for five or more, with lower percentages when net resources are under $1,000 and adjusted percentages when the parent supports children in another household. The percentages apply to net resources up to a cap the Attorney General publishes ($11,700 since September 1, 2025).[1]
Is this the amount a court will order?
It's an estimate from Texas's published guideline. A court applies the guideline to the evidence in your case and can depart from it for reasons the law allows. Confirm with the official calculator (Monthly Child Support Calculator). Not legal advice.
Where do the numbers come from?
From the state's statute or court rule and its official tables, each linked beside the step that uses it, and from the figures you type. Nothing you type leaves your browser unless you switch on sharing and copy the link.
Estimate and general information only — not legal advice. MediationList is a directory, not a law firm, and doesn’t endorse any mediator. Guidelines change; confirm with the official calculator (sources checked October 26, 2026). See also divorce laws in Texas and child support in every state.
Sources
Texas’s child support guideline, rules and official tools, read on the official sites, with the date we checked each.
- Tex. Fam. Code § 154.125 (Texas Constitution and Statutes) (§ 154.125 as amended eff. Sept. 1, 2021; cap $11,700 eff. Sept. 1, 2025)↩
- OAG 2026 Tax Charts, citing Tex. Fam. Code § 154.125(a-1)↩
- Monthly Child Support Calculator