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Alameda County, CA,

General & Ownership Information
(510) 272-3787

Business Personal Property:
(510) 272-3836

Our business hours are from 8:30AM to 5:00PM Monday through Friday except for holidays


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Boats / Vessels - Frequently Asked Questions

  • Q: Do I have to pay the full tax if I sell my boat after the January 1 lien date?
  • A: Yes. Unsecured property taxes are not prorated by the Tax Collector's Office. Any activity occurring after the lien date only affects the following year.

  • Q: Should I notify the Assessor's office if I sell my boat?
  • A: Yes. This information will help prevent you from receiving a tax bill on property you no longer own during the next Roll year. However, you should fill out a Release of Liability form with the Department of Motor Vehicles (DMV).

  • Q: My boat is outside the (county/state/country).
  • A: California registration indicates the boat is kept in California. If it is in the county more than 6 months, it is taxable here.

  • Q: Why do I have to pay taxes on my boat to you and the DMV?
  • A: DMV collects a registration fee for the boat. The county Assessor determines boat values, upon which the personal property taxes are based.

  • Q: Why do I have to pay taxes on my jet ski?
  • A: In California all property is taxable unless specifically exempt by law. (R&T 201)

If you have any questions please contact our Marine Division at (510) 272-3838

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