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King County Assessor

Welcome to our webpage! Great customer service is job 1 for us and we hope this site will help you with issues regarding property values, and the tax relief programs we administer.

Below you will find links allowing you to apply for a property tax exemption if you are a senior, a disabled veteran, or a disabled person, if you meet the program requirements.

You can also find information on your property’s value, details and data on our property tax system, how to appeal your property value, and information on our office.

Please don’t ever hesitate to contact us. We are here to help!

John Wilson, King County Assessor


Housing Availability Dashboard

NEW Housing Availability Dashboard

Real-time, data-driven,
housing information

Residential houses

eReal Property Search

View valuations, property characteristics,
levy rates, and sale history



Senior couple smiling in front of house

Apply for tax relief online

Qualifying information

Paper application

Image of Localscape application


Explorer King County!



Pie chart of 2024 property taxes


Where do my property tax dollars go?



Message to seniors

The State of Washington has given us a powerful tool to help seniors remain in their homes. If you are 61 years old, own your home, and make less than $84,000 a year you can apply for an exemption that can potentially save you thousands of dollars on your property taxes. Our office works hard to quickly process these applications. While we do accept paper applications, we strongly encourage you to apply online here: Senior Exemption Portal

Paper applications take far more time and staff resources to process, causing backlogs in our system. To speed things up for everyone, please apply using our online process. If you need help you can call us at 206-296-3920 and a member of our staff can walk you through the process. We want everyone to get the tax relief they are entitled to as quickly as possible!