Calculate Child Support
The California Child Support Guideline Calculator is based on the same legal guidelines used in California courts, and can be used to estimate the amount of child support that may be ordered in your case.
This calculator provides only an estimate and is not a guarantee of the amount of support that will be ordered. The county child support commissioner or family law judge has the final authority to determine the amount of a child support order.
If you have any questions about the child support guidelines, you should talk with a lawyer or contact a Family Law Facilitator. You can download the guideline calculator user guide for more help with the tool.
If you have unpaid child support debt, you can figure out how long it will take to pay it off with our Arrears Payoff Calculator.
The Qualified Business Income Deduction calculator is an Excel tool to help individuals using the Guideline Calculator figure out the business income deductions they may need to enter in the Monthly Deduction Information section of the Guideline Calculator. This Excel tool gives an estimated amount based on the information you enter. Do not use this tool for tax returns or anything other than estimating support. Only this original Excel tool should be used. Any version provided by others may have different formulas affecting the result. This tool has been certified by an independent Certified Public Accountant.
Guideline Calculator
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. Click on Instructions for information to help you enter information into the blank fields.
Some understanding of California family law and California and federal tax law is necessary to complete some blank fields correctly. You can obtain assistance in completing the Payment Estimator from your county's Family Law Facilitator or a family law attorney.
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. Begin working with a local child support office - click here to enroll today.