Make A Payment Online To make a payment online, you can use a credit or debit card, use PayPal, or pay directly from your checking or savings account. These payments are not processed by California Child Support – you will be taken to the California State Disbursement Unit (SDU) website. Choose from the below two online payment options: Option 1: Make a Payment as a Registered User To register, you will need your 13 or 15 digit Participant ID, your Social Security number and your contact information. Click the Paying Support button to be taken to the SDU website, and select “Non-Custodial Parent” Please understand that this is an old term and this button will be changing soon – many paying parents have partial or full custody of their children. Log in. Select “Make a Payment.” Follow the instructions to make a payment using your bank account information or a credit or debit card. Option 2: Make a Single Payment Without Registering Please note, you can make a payment online without registering on the website, but if you do register you can set up recurring payments or future date payments, and have a convenient record of your transactions. To make a payment without registering, you will need your 13 or 15 digit Participant ID number and your Social Security number. Click the Paying Support button to be taken to the SDU website, and select the “Pay Without Registering” option. Enter the requested information to make a payment using your bank account information or a credit or debit card.