Free Child Support Calculator
This is a free tool to help you estimate how much child support you or your co-parent may need to pay monthly. To get a more accurate number, choose the Full Calculator button below.
Parents and children
For this section, only include children from your relationship together who are 18 years old or less, or who have special needs.
What is one parent’s name?
What is the other parent’s name?
How many children under 18 (or special needs children) do you share?
Number of children
1
What is the first (oldest) child’s name?
Wages and salaries
When listing each parent's income, use the gross income. This is the total amount of wages, salary, and tips you make per month before any taxes are taken out, and can usually be found on a W2 or 1099 tax form.
What is Parent 1’s gross income?
What is Parent 2’s gross income?
Time with parents
Now, estimate the total amount of time the children spend with each parent. For a list of common parenting schedules, click here.
What amount of time do the children spend with Parent 1?
What amount of time do the children spend with Parent 2?
Tax estimator
This section allows for federal and state tax estimates for each parent. Move the slider to estimate each parent’s tax bracket.
What is Parent 1’s approximate federal tax rate?
What is Parent 1’s approximate California state tax rate?
What is Parent 2’s approximate federal tax rate?
What is Parent 2’s approximate California state tax rate?