General Contact Number: (530) 621-5567

Child Support Services

image of person using ATM machineElectronic Funds Transfer

The California State Disbursement Unit (SDU) is now the single payment processing center for all of California child support payments including those made by employer wage withholding. To simplify the payment submission process, the SDU provides all employers the option to submit payments electronically through the banking network known as the Automated Clearing House (ACH).

Our EFT is more secure and cost effective than processing checks. EFT is a "win-win" for employers and employees. It provides the assurance payments will be made on behalf of your employees and received timely, allowing the SDU to process and distribute payments to families quickly and efficiently. We offer two methods of electronic payment processing:

ACH Debits

Employers may use our web site or telephone IVR service to submit EFT payment requests. This services is free to all employers, and will allow you to input employee data once, and from that point forward, only make changes, deletions, and additions. Employers can go directly to the web site and enroll for this service. Using the ACH debit service, the employer will designate the date that the SDU will debit the employer bank account for the wage withholding amounts. Please visit our web site at   https://www.casdu.com/CAS_SDU/ (Secure Web) or call (866) 901-3212 for additional information on this service.

ACH Credits

If the employers decide the use this service, they must work with their bank to determine the method of creating and submitting ACH credit transactions to the SDU bank account. Your bank may charge for this service. If the employer chooses this method, the employer must follow the steps outlined below.

In order to participate in the EFT ACH Credit process you will need to:

  • Complete an enrollment form and send to the SDU by mail or fax and an SDU EHD representative will contact you to arrange for a test file.  
  • Provide a test file. 
  • The SDU Electronic Help Desk (EHD) will contact you upon receipt of the enrollment form to guide you through this process. California can accept in either CCD+ or CTX820. Pre-note, zero and penny test files are not required. We will notify you if any changes need to be made.  
  •  Receive an EFT authorization letter. California does not release its banking information prior to successful verification that your test file meets the Child Support Banking Convention guidelines and the file format review has been completed. When this is done an authorization with banking information will be faxed or emailed to you.  

You may also go to our website at https://www.casdu.com/CAS_SDU/ (Secure Web) and get more information regarding EFT, NACHA (National Automated Clearing House Association), and payment options.

Click here to start the process the web or login to your existing account. If you have further questions, please contact our Electronic Help Desk by phone at (866) 901-3212 or via email at casdu-electronichelpdesk@firstdatacorp.com and we will be glad to assist you through this process.

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