Texas Child Support Calculator

Texas child support calculator - accurate estimates for every custody case

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The Only Real-Time Child Support Engine Built for Parents

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Key Features

The "What-If" Custody Slider

Parenting time changes everything. Instantly see how moving from Primary Custody (80/20) to Shared (60/40) or Equal Custody (50/50) impacts your monthly payments. Watch your annual savings update in real-time as you move the slider.

All 50 States & 3 Legal Models

We don't use generic math. The app applies the exact legal frameworks mandated by your state—including the Income Shares Model (41 states), Percentage of Income (TX, NY, IL, etc.), and the Melson Formula (DE, HI, MT).

100% Private & No Lawyer Lead-Gen

Unlike "free case evaluation" websites that force you to input your email and then spam you with calls from law firms, this app is completely standalone. Your financial data never leaves your device. No data is stored, transmitted, or shared.

What's New in v1.0.1

Integrated 2026 state-specific modification thresholds.
Added interactive 3-scenario custody comparisons (20/80, 60/40, and 50/50).
Implemented real-time Pay Frequency conversion (Hourly, Weekly, Bi-Weekly, Annual).
Added Dual-Perspective UI toggle (Paying vs. Receiving parent).

Frequently Asked Questions

Not necessarily. In states that use the "Income Shares Model" (like California or Florida), if one parent makes significantly more money than the other, they may still owe child support even with a strict 50/50 equal parenting time split. Our app calculates the exact "parenting time credit" your state applies to offset the base obligation.

It depends on where you live. 41 states use the "Income Shares Model" (combining both parents' incomes). 6 states (including Texas and New York) use the "Percentage of Income Model" (basing support only on the paying parent's income). 3 states use the Melson Formula. Our app has all 50 states hardcoded to apply the correct legal framework automatically.

Family courts allow you to request a modification, but only if the income change meets your state's specific "modification threshold" (usually a 10% to 20% change in the payment amount). Our app explicitly lists the modification threshold percentage for your selected state so you know when it is worth filing a petition.

No, they are considered "Add-On Expenses." Childcare costs, health insurance premiums for the child, and extraordinary medical expenses are calculated separately and then split between the parents proportionately based on their income share. The Child Support Calculator US app features a dedicated Add-On section to calculate these exact splits.

Generally, no. A new spouse's (stepparent's) income is rarely factored into your child support obligation because they have no legal duty to support your child from a previous relationship. You should only enter your own gross income into the calculator.

No. Many older calculators require you to do complex math before you even start. Our app features a flexible Income Frequency Converter. Simply enter your Hourly wage, Weekly paycheck, or Annual salary, and the engine automatically normalizes the math to the court-standard monthly gross income.

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