Skip to main content

Tax Advisor

Tax Advisor

Due to Public Health concerns, please contact the Tax Advisor Office by phone at 206-477-1060 or email

The Tax Advisor Office provides King County taxpayers advice and assistance on property tax related matters including appeals. The Tax Advisor Office is a division of theKing County Office of the Ombuds. The Tax Advisor Office is independent of the County Assessor’s Office in accordance with state law (RCW 84.48.140).

What assistance does the Tax Advisor Office provide?
Tax Advisor staff is familiar with state and county property tax laws, appraisal and assessment practices, tax calculation and billing procedures, and local and state appeal processes.

We assist the public by:

  • Answering questions on value notices, appeals, exemptions, taxes and levy rates;
  • Researching property sales for taxpayers evaluating their assessments;
  • Guiding taxpayers doing independent research; 
  • Working with the King County Assessor, King County Treasury, King County Board of Equalization, Washington State Board of Tax Appeals, and the Washington State Department of Revenue to resolve taxpayer concerns.

For more information about our office, please read our brochure.

What can’t the Tax Advisor Office do?
We cannot reduce your assessed value, lower your tax bill, or change your property characteristics. However, we can advise you on the procedures to accomplish a change; what information is relevant and where to find it; who to talk to and how to most effectively present your case.

Attention seniors: 2020 income limit change (based on 2019 earnings)
The Legislature has made major changes in the senior citizens, disabled persons, and veterans exemption and deferral programs. These changes will take effect for taxes collected next year, 2020. The income limit is now indexed to 65% of the median household income in King County. The new limit is $58,423 rather than set at a fixed amount. Applications will be available January 2020.

If you would like to be put on a mailing list please click below:

For further information please visit

We are here to help:
Contact our office to arrange an appointment.

Telephone: 206-477-1060
Toll Free: 1-800-325-6165
TTY Relay: 711
Fax: 206-296-0948

Related information:

Appeals information

County Assessor's Office

County Treasurer's Office