California law requires courts to adhere to statewide uniform guidelines in setting child support orders. The Payment Estimator applies the statewide uniform guideline calculation to the information that you enter into the blank fields. Go to to enter in financial information relevant for calculating child support.

Some understanding of California family law and California and federal tax law is necessary to complete some blank fields correctly.

Local Child Support Agencies provide child support services to the public at no cost. Among the services provided by Local Child Support Agencies are obtaining court orders and modifying court orders based on statewide uniform guidelines.

You can obtain assistance in completing the Payment Estimator from your county’s Family Law Facilitator or a family law attorney.