The custodial or obligor parent can request that the current support order be reviewed for possible modification to change the amount of support ordered to be paid, or to provide health insurance for the children. Please read the next section: Notice of the Right to Request a Review.

Notice of the Right to Request a Review

The custodial party and/or obligor parent subject to a support order, in the state of California, have the right to request that the San Mateo County DCSS review the support order to determine if the amount of support should be changed based on state-wide criteria. The San Mateo County DCSS is not required to review an order if:

  • The order was reviewed for modification within the prior 12 months
     
  • The order was established or adjusted within the prior 24 months
     
  • One of the parents cannot be located and there is no new information regarding his or her whereabouts
     

The San Mateo County DCSS will review an order even if it was reviewed or adjusted recently if there has been a significant change in circumstance. In this instance a significant change in circumstance is limited to either a parent becoming involuntarily unemployed, a parent becoming employed or a change in custody has occurred, a parent becomes incarcerated, a parent is in receipt of General Assistance, a parent is in receipt of Supplemental Security Income, and/or is active military/deployment. Seasonal or intermittent employment that was considered by the court when establishing the support order does not qualify as a significant change in circumstance. Once the San Mateo County DCSS has determined that an order will be reviewed, the review and modification process should be completed within 180 days.

The San Mateo County DCSS must attempt to modify an order in any of the following circumstances:

  • Application of the state's child support guidelines indicates that the amount of support ordered should be increased by at least $50 or 20 percent, whichever is less;
     
  • Application of the state's child support guidelines indicates that the amount of support should be decreased by at least $50 or 20 percent, whichever is less and the reason for the decrease is expected to last at least six months;
     
  • There is no medical insurance provision in the order and medical insurance is available at reasonable cost to the obligor parent.

If the San Mateo County DCSS is not required to modify the order, the San Mateo County DCSS must provide to either the custodial parent and/or obligor parent, upon request, information on how they can get forms to ask the court to increase/decrease the amount of the support order.

To obtain an application to have your court order reviewed; please contact our office 1-866-901-3212

You can also complete an online Request for Review and Adjustment (aka Modification) or to respond online to a request for a Review and Adjustment and submit it to DCSS electronically

For more information read the State's brochure in regards to Changing Child Support Amount

Guideline Calculator Estimator

The California Guideline Child Support Calculator is based on California Child Support Guidelines and can be used to estimate the amount of child support that may be ordered in your case.

The Court Commissioner or Family Law Judge has the final authority to determine the amount of a child support order. This calculator provides only an estimate and is not a guarantee of the amount of child support that will be ordered. Other factors may affect the amount of child support awarded.