Preserving agricultural and open space lands
File a Business Property Statement
File a Vessel Property Statement
File a Horse Property Statement
The regular filing period for the 2020-21 annual assessment period is now closed. If you feel your market value has declined, you many file an Informal Request for Decline in Market Value between January 1 and June 30, 2021.
Some forms have specific deadlines to file, others can be filed any time during the year or must be filed within a set number of days past an event.
If there is not a specific deadline listed below, please refer to the form instructions, information page, or contact our office for assistance.
Read more about important dates and deadlines
eFile Business Property Statements
The Deadline to file Business Property Statements has passed.
Note: The deadline to file your 2021 Business Property Statement was May 7th at 5:00PM. We will mail the 2022 Notice to File Letters February 2022.
Authorization and Change of Address
Personal Business Property
Some forms have specific deadlines to file, others can be filed any time during the year or must be filed within a set number of days past an event. Please refer to the referenced page or contact our office for more information
Organizations - Religious
Organizations - Non Profit
Organizations - Other
County Clerk-Recorder-Assessor-Registrar of Voters
Contact us by Phone
- Monday – Friday
- 9:00 AM – 4:00 PM
585 Fiscal Drive
ActiveMap Viewer Collection
Access location-based information pertaining to a specific subject and/or area within unincorporated Sonoma County.
Fire Rebuild Operations
The staff of the Clerk-Recorder-Assessor's Office are forbidden by California legal codes to practice law or provide legal advice; this prohibition includes giving advice about what forms you might need or how you should fill them out.