Get a Copy of Your Bill

Duplicate Tax Bills
Copies of Secured and Supplemental property tax bills can be found on line by going to Account Lookup.

Copies of Unsecured and Redemption tax bills can be obtained by writing to the following address:

                                Contra Costa County Treasurer 
                                Attn: Duplicate Bills 
                                P.O. Box 631 
                                Martinez , CA 94553-0063


Taxpayers may also call our office, (925) 957-5280 and/or email us to request a duplicate tax bill for the currenty year.
 
Be sure that your payment and/or duplicate bill fee check clearly states your name, APN/Account number, mailing address, phone number, and email address if available so that we may contact you with any questions regarding your request.

Paying Options

The following options are available for property tax payments;

Pay On Line                            Pay By Phone

Pay By Mail                            Pay In person