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Calculating Child Support


In California, a parent’s first and primary obligation is to support his or her minor children. Each parent is expected to pay for the support of a child according to his or her ability.

California created a standard mathematical formula that our office and  judicial officers are required to use to calculate child support. Information placed into this formula includes, but is not limited to:  the earnings and income of each parent; the amount of time each parent takes care of the child (“timeshare”); certain expenses; and the number of other minor children that the parent is required by law to support.

California developed a Guideline Calculator, which can be used to estimate the amount of child support that might be ordered.

Judicial officers have the final authority to determine the amount of a child support order. The Guideline Calculator provides only an estimate and is not a guarantee of the amount of child support that will be ordered. Other factors may impact the amount of a child support order.


To learn more about Establishing a Court Order, please click on one of the following links:


OverviewSummons & Complaint / File an Answer / Obtaining an Order / Medical Support / Military / Incarcerated Noncustodial Parent