Child support questions

How much is child support for one child?

How to use this page: review the guidance below, enter the requested information, and compare the estimate with your state's official rules before making legal or financial decisions.

Short answer: Child support for one child depends on your state's formula and both parents' incomes. In percentage states it is a set share of the paying parent's income: 20% in Texas and Alaska, 17% in Wisconsin, and 14% in Mississippi.

In income shares states

There is no flat percentage. The state's schedule sets a basic obligation for one child at the parents' combined income, and the paying parent pays their percentage of it. The share of income spent on one child usually falls as income rises.

Add-ons

Health insurance for the child, uncovered medical costs and work-related child care are usually added on top of the basic amount and split between the parents.

Get a number for your state

Enter both incomes and parenting time in the calculator for your state to see an estimate, then compare it with your state's official worksheet.

Run the numbers with the Child Support Calculator, or talk to a lawyer about your case.

This page is general information, not legal advice. Rules differ by state and change over time.