California Child Support Calculation

courtinfo.ca.gov, May 10, 2006

How is child support calculated?
California has a statewide formula (called a "guideline") for figuring out how much child support should be paid.

If parents can't agree on child support, the judge will decide the child support amount based on the guideline calculation.

The guideline calculation depends on:

  • How much money the parents earn or can earn
  • How much other income each parent receives
  • How many children these parents have together
  • How much time each parent spends with their children
  • The actual tax filing status of each parent,
  • Support of children from other relationships
  • Health insurance expenses
  • Mandatory union dues
  • Mandatory retirement contributions
  • The cost of sharing daycare and uninsured health-care costs
  • Other factors

    Child support can also include the cost of special needs like:



  • Traveling for visitation from 1 parent to another
  • Educational expenses
  • Other special needs
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