Finance & Records
The Assessor's primary duty is to determine the value of all taxable real and personal property for the purpose of equitable tax distribution for various taxing districts.
- NEW 2018 Property Tax Levies
- How to Calculate Property Tax
Levies & Taxing Districts
Review multiple charts and graphs explaining the use of real and property tax revenue.
- Change of Value Notices
- Real Property Appraisal
Parcel Search and Maps
Parcel Search and Maps
Business Personal Property
Personal Property Tax is the mirror image of Real Property Tax.
- Current Use & DFL Programs
Exemptions & Tax Relief
If you are a senior citizen or if you are disabled, Washington State has two programs that may help you to pay your property taxes and/or special assessments.
- Assessor's Data
- Change of Mailing Address
The County Auditor's Office is responsible for financial services, supervising elections, registering voters, licensing and recording of legal documents.
The San Juan County Auditor's Office Accounting Division performs eight distinct financial functions.
New Elections Site
Learn how to apply for drivers, vehicle, vessel, marriage, and dog licenses.
By RCW 36.22.010, the County Auditor is the “recorder of deeds and other instruments in writing which by law are to be filed and recorded in and for the county for which he or she is elected.”
- Budget and Quarterly Reports
- Accounting Division
The County Treasurer serves as the Ex Officio Treasurer for Junior Districts and School Districts and is the custodian of all funds for the County, Junior Districts and School Districts.
Unless otherwise specifically exempt from tax, all sales are subject to the excise tax.
Excise Tax Searches
Use the databases to search for excise tax affidavits from 1952 to present.
There are different types of property sold at Treasurer's sales and here you will find general information on real property tax foreclosure sales.
Land Bank Tax
The San Juan County Land Bank Tax also known as Real Estate Excise Tax (REET) is a tax authorized by the voters of San Juan County pursuant to the enablement and requirements of Chapters 82.45 and 82.46 RCW.
Mobile Home Movement
Before mobile homes can be moved a tax certificate for mobile home movement must be completed.
- Search Parcel and Pay Property Taxes
Personal Property Taxes
Personal property as defined by the State of Washington includes the assets of a business or utility, aircraft hangar, mobile homes independent of real property, farm equipment and houseboats.
Real Property Taxes
Learn how to pay for real property taxes.
Utility Local Improvement Districts
Assessment districts are formed to provide a specific service or benefit to lands contained within its boundaries.
- Excise Tax