Online

Electronic payments can be made online on the website using your Visa or MasterCard at www.casdu.com. You will need your Social Security number, your Participant ID number and contact information.

1.9% service fee per transaction 

Phone

Call 1-866-901-3212 (option 1). Electronic payments can be made using your Visa or MasterCard. You will need your Social Security number and Participant ID number.

1.9% service fee per transaction

Mail

Mail your check or money order to CA State Disbursement Unit PO Box 989067 West Sacramento CA 95798.

No Fee

ExpertPay

All ACH (bank account) payments can be made through ExpertPay. You can register at www.ExpertPay.com and/or download the ExpertPay app.

One-time registration fee of $2.50 

MoneyGram

Find a location at www.MoneyGram.com/Locations or call 1-800-926-9400. You will need your child support Participant ID number and Receive Code 14630 for California child support payments.

$1.99 service fee per transaction

PayNearMe

Pay at 7-Eleven, Family Dollar and ACE Cash Express. You will need a reusable payment code, which you can obtain at www.PayNearMe.com/California or call 1-866-901-3212. Print it or keep it on your smartphone and show it each time you make a payment.

$1.99 service fee per transaction

PayPal

Payments can be made online via www.childsupport.ca.gov by selecting the PayPal hyperlinks. You can make on-demand one-time, future-dated, and recurring payments using PayPal balance, PayPal branded debit and credit cards, bank account debit card, and credit card (Visa, MasterCard, American Express and Discover).

2.49% ($3.95 minimum) service fee per transaction 

In Person

Contra Costa County DCSS accepts payments via cash, check, money order, debit or credit card payments through our TouchPay kiosk. A drive-up payment window is available, 8:00-5:00pm at our office located at 50 Douglas Dr, Martinez CA 94553. 

2.2% flat fee on all credit/debit card transactions

No fee for cash, check, or money order payments.