The Island County Treasurer's Office in Coupeville and the Camano Administration Building are open to the public with safety and health precautions in effect. At the present time, masks are not required. We practice limited entry and six-foot distancing for the safety of staff and customers. These practices are also observed at the Camano Administration Building.
We encourage you to consider paying electronically. There is no fee for paying by electronic check.
Property taxes for 2023 are certified (PDF) and statements will be mailed prior to March 10. Any unpaid balances remaining from prior periods are delinquent.
Balance information is also posted on this website. Make a Payment here.
Due date for property taxes in Island County is April 30. Second half balances are due Oct. 31.
The property taxes paid to the Island County Treasurer are redistributed to the State of Washington to fund public schools, the special purpose districts that provide services (hospital districts, school districts, cities, fire districts, parks and recreation districts, diking districts, drainage districts, the library district, emergency medical services, etc.), and Island County (roads and public services). These districts require tax revenues to continue operations and provide services to county residents. Additionally, many have outstanding bond issues with debt service payments due June 1 and Dec. 1. On behalf of the state and districts, we appreciate your prompt payments.
Failure to receive a statement by mail does not absolve the taxpayer of the responsibility to make timely payment per RCW 84.56.020. Checks received without appropriate interest and/or penalties included will be returned as a short payment.
- What if I have not received a tax statement by the middle of March?
Contact the Island County Treasurer's Office. This may have occurred for any of the following reasons:
- We do not have your current mailing address
- Your statement may be on hold due to a pending tax adjustment that needs to be completed prior to mailing the tax statement
- Your statement was lost in the mail
Failure to receive a tax statement does not relieve you of the responsibility to make your tax payments by the due date and is not grounds for waiver of interest and penalties that accrue to delinquent accounts. Contact the Treasurer's Office for replacement statement(s) or to request tax amounts due.
- I received a tax statement on property I sold. What do I do?
You may do one of the following:
- Forward the statement to the purchaser
- Return the statement to the Treasurer's or Assessor's office with a notation of the purchaser's name and address, if you know it. The name and address will be corrected and statement re-mailed.
- I lost my tax statement. How do I get a replacement?
Request a new statement here or call the Treasurer's Office at 1-360-679-7302, ext. 1.
- How do I submit a change in my mailing address, physical address or name?
To change your mailing address, physical address or name, do the following:
- Contact the Treasurer's office for an address change by email or you may use the Request for Address Change form and mail to us.
- Submit any mailing address change in writing to the Treasurer's office.
- Contact the Assessor's Office to request a name change. This must be accompanied by supporting legal documentation. Any name change will not affect your recorded deed.
- Contact the Assessor's Office to request a correction in the physical address of the property. The Auditor may need to get confirmation from the Planning Department or make a site visit to your property.