Change Mailing Address
Most taxpayers are unaware that maintaining the mailing address is the responsibility of the Assessor, not the Tax Collector.
It is essential that we have your correct mailing address. Notification of assessments, tax bills and all other tax related correspondence will be mailed to that address.
If you wish to change your mailing address, please complete the Mailing Address Change Request form and return it to our office. Please note that we maintain only one mailing address for all your assessment and tax related mail.
Select the appropriate tab below based on your property type.
Mailing Address Change — Real Property
Use these forms if you are a homeowner or own real property in Alameda County.
Option 1: Electronic Form (Recommended)
Complete and submit the form online via DocuSign — no printing or mailing required.
Submit Mailing Address Change Form Online — Real Property (DocuSign)
Option 2: PDF Form
Download, print, and mail or fax the completed form to our office.
Download Mailing Address Change Form — Real Property (PDF)
Where to Submit
Mail: Alameda County Assessor’s Office, 1221 Oak Street, Room 145, Oakland, CA 94612
Phone: (510) 272-3787
Mailing Address Change — Business Personal Property
Use this form if you own a business and are not the owner of the real property at your business location.
PDF Form
Download, print, and mail or fax the completed form to our office.
Download Mailing Address Change Form — Business Personal Property (PDF)
Where to Submit
Mail: Alameda County Assessor’s Office, 1221 Oak Street, Room 145, Oakland, CA 94612
Phone: (510) 272-3836 (Business Personal Property)
Property Street Address Changes
The Assessor’s Office does not assign or change the street address of a property. If you need to update a property’s street address, please contact the city or county planning department where the property is located.
State Assessed (Utility Roll) Property
For address changes related to state-assessed properties such as utilities, railroads, or pipelines, please contact the State Assessed Properties Division of the California State Board of Equalization at (916) 274-3270.