Customer Service - King County

Our normal business hours are Monday through Friday, 8:30 a.m. to 4:30 p.m. Customer service representatives are available by phone at 206-263-2890. If an interruption in service occurs during non-business hours, the problem will be addressed at the beginning of the next business day. We apologize in advance for any inconvenience.

If you encounter a technical problem while using this site, please leave a comment here. Include the parcel/account number or property address in your comment. Enter a valid email address as we will use this information to respond to your inquiry. We will make every effort to respond to your email within two business days.

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King County Treasury Operations, King Street Center 201 S. Jackson St, Suite 710, Seattle, WA 98104

Property Tax Information and Customer Service------------206-263-2890 ---- PropertyTax.CustomerService@kingcounty.gov
Mobile Homes/Commercial Personal Property------------- 206-263-2844 ---- Treasury.PersonalProperty@kingcounty.gov
Tax Foreclosures -------------------------------------------------- 206-263-2649 ---- TaxForeclosures@kingcounty.gov
Maintenance Assessment Mgmt Systems/Local Improvement Districts 206-263-1893--- mams.lid@kingcounty.gov