Image of the Dublin Wave Water Park.

Mailing Address Change

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 Business Personal Property form if you own a business and are not the owner of the real property at your business location.

 

Mailing Address Change - Business Personal Property - PDF

Mailing Address Change - Real Property - PDF

Mailing Address Change - Real Property - Electronic

Attention!A Message to Boat Owners

Dear Alameda County Residents:

Many vessel owners will see an increase in their 2022 property tax valuations!
 
The valuation factors calculated by the State Board of Equalization and provided to California County Assessors through LTA 2022/003 indicate an increase in 2022 values between 20-24% depending on the type of vessel. The State Board of Equalization reviews average retail sale prices for new and used powerboats, sailboats, and personal watercraft annually to develop the valuation factors. Per their research, these vessels have experienced large appreciation in value compared to 2021.

For more information please click here.

Sincerely,

The Alameda County Assessor’s Office