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San Juan County Auditor

Vessel Licenses

Hours of Operation
10:00 am to 4:00 pm, Monday through Friday San Juan County Courthouse, First Floor

All vessel registrations are due on the last day of June. Decals may be purchased at the Auditor's office.

Check the chart to see if you have to register your boat and pay the excise or property tax. Federal Documented Vessels are required to purchase registration.


Any Length
Under 16 Feet 16 Feet and Over
With Motor Without Motor With Motor Without Motor Under 16 Feet 16 Feet and Over
Excise Tax Required NO NO YES YES NO NO YES **YES
Registration/titling Required *YES NO YES YES NO *YES YES Reg. Only

Personal property tax applies to most commercial boats.
*No, for tenders of 10 horsepower or less when owned by the owner of a properly licensed vessel, and displaying the number as that vessel as prescribed by law. See RCW 88.02.570 for additional exemptions.
**Unless vessel qualifies for exemption.

For Non-Resident Vessel Owners

Non-resident vessel owners may use their vessels for personal use or enjoyment on Washington waters up to six months in a 12-month period if the vessel is currently registered in the state of principal use. Effective January 1, 1998, a non-resident vessel owner must do the following to legally operate a vessel in Washington waters for more than 60 days:
  • Provide the date of entry/hull identification number or six to seven digit Coast Guard Official Number.
  • Provide proof of non-residency by showing out-of-state driver's license, or out-of-state photo ID and out-of-state vessel registration.
  • Purchase a Vessel 60 Day Temporary Identification Document for $28.75, plus applicable fees on/by the 61st day of use. The Vessel 60 Day Temporary Identification Document can be renewed for an additional 60 days on or before the first 60 days expires. Cost for renewing is $28.75, plus applicable fees.

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Kira Sable
Customer Service Specialist
Sandy Roe
Lead Customer Service Specialist
Brenda ThompsonCustomer Service Specialistbrendat@sanjuanco.com360-370-7552
Kim Herrenkohl
Chief Deputy Auditor

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