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Customer Service

Customer Service

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.

Contact Information

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 or

Mobile Homes/Commercial Personal Property
206-263-2844 or

Tax Foreclosures
206-263-2649 or

Maintenance Assessment Management Systems/Local Improvement Districts
206-263-1893 or