Texas Child Support Calculator
Estimate monthly child support under Texas's official guideline model. Updated for 2026.
Last reviewed July 2026 · Free · Nothing you enter is stored
Estimate monthly child support under Texas's official guideline model. Updated for 2026.
Last reviewed July 2026 · Free · Nothing you enter is stored
Texas uses the percentage of income model: child support is calculated as a set percentage of the paying parent's income, with the percentage increasing with the number of children.
Governing law: Tex. Fam. Code § 154.125 — Percentages apply to the first $11,700/mo of net resources (cap raised from $9,200 effective Sept 1, 2025, adjusted every six years); reduced percentages apply to obligors with net resources under $1,000/mo.
Texas's guideline percentages of the paying parent's net income:
| Children | Percentage of income |
|---|---|
| 1 | 20% |
| 2 | 25% |
| 3 | 30% |
| 4 | 35% |
| 5 | 40% |
Texas publishes an official calculator that applies the full guideline schedule: official Texas child support calculator. Use ours for a quick, private estimate and theirs when you need the exact worksheet figure.
Texas uses the percentage of income model: child support is calculated as a set percentage of the paying parent's income, with the percentage increasing with the number of children. The guideline is set by Tex. Fam. Code § 154.125.
No — this is a guideline estimate. Courts start from the guideline amount but can deviate for factors like extraordinary medical costs, special needs, other support obligations, or agreements between parents. For an official figure, use the state’s own calculator linked on this page or consult a family law attorney.
In most states, including under most guideline models, substantial parenting time (often above roughly 20–30% of overnights) reduces the paying parent's obligation. Our calculator applies a simplified parenting-time adjustment; Texas's courts apply their own specific rules, so treat shared-custody results as rough estimates.
Generally all income: wages, self-employment, bonuses, commissions, and often investment income. Texas's guideline applies to net (after-tax) income — our calculator approximates net income from the gross figures you enter. Courts may also impute income to a parent who is voluntarily unemployed or underemployed.