Estimate Texas child support under Tex. Fam. Code § 154.125 — Percentage of Income model, current caps and percentages, with a step-by-step worked example.
| Guideline model | Percentage of Income |
|---|---|
| Income basis | Net (after-tax) income |
| How it works | 20% for 1 child, 25% for 2 children, 30% for 3 children, 35% for 4 children, 40% for 5 children. |
| Caps & limits | Net resources cap $11,700/mo (effective Sep 1, 2025; adjusted every 6 years — next ~2031) |
| Statute / rule | Tex. Fam. Code § 154.125 |
| Parameters verified | 2026-07 |
Result: $1,250 per month
Texas applies fixed percentages of the paying parent’s net (after-tax) income under Tex. Fam. Code § 154.125. 20% for 1 child, 25% for 2 children, 30% for 3 children, 35% for 4 children, 40% for 5 children.
Texas calculates support on net (after-tax) income as defined in Tex. Fam. Code § 154.125. Net resources cap $11,700/mo (effective Sep 1, 2025; adjusted every 6 years — next ~2031).
Yes. The guideline amount under Tex. Fam. Code § 154.125 is presumptive, not absolute - courts may deviate with written findings for factors like extraordinary medical or educational needs, other children supported, or very high income beyond the guideline range.
Apply through the Texas child support agency or the family court in your county. Existing orders can be modified on a substantial change in circumstances - typically a significant income change, job loss, or a change in custody. The official calculator/worksheet is linked on this page (csapps.oag.texas.gov).
25% of the paying parent’s net (after-tax) income under Tex. Fam. Code § 154.125. See the calculator above for your exact figure.
Estimate only — not legal advice. Based on Texas guidelines (Tex. Fam. Code § 154.125), last verified 2026-07. Courts may deviate. For an official figure use the official Texas calculator.