skip to main content


Finance and Business Operations

Welcome to the Property Tax Online Payment Website


As a King County taxpayer, you have online access to the same information about your property taxes as is available through our customer service staff. The following self-service tools are available online for your convenience:

Your Tax Dollars at Work

If you cannot find answers to your questions in the FAQ menu, send us an e-mail via Contact - Property Tax or call 206-263-2890.

Property tax amounts for 2016 are expected to be posted online by 2/15/16. Tax statements are being mailed on 2/12.  Second half 2015 taxes must have been paid or postmarked by November 2, 2015 to avoid delinquency charges. To make online payment(s), go to the King County E-commerce Property Tax Web page. It may take up to a week for your property tax payment to be reflected in our records after we receive it. Even after we show your account in PAID status on our website, if your bank rejects the transaction, it can be reversed off of our system once we are notified. It is the responsibility of the taxpayer to confirm successful posting with their bank. If you pay online by electronic check (debit to your checking account), you should see this reduction in your bank account within three business days even though our system may not yet reflect the payment.

DISCLAIMER: Please be aware that the accuracy of the information you are accessing may be affected by pending payments or other changes. Therefore, King County Treasury Operations cannot warrant the accuracy, reliability or timeliness of the information, and shall not be held liable for losses caused by using this information. Any person or entity that relies on any information obtained from this system does so at their own risk.

Note: Documents on this page are available in portable document format (PDF) .

Administration Building
King County Treasury
Administration Building
500 4th Avenue, Room 600,
Seattle, WA 98104-1818
Real Property Tax : 206-263-2890
Property Tax Foreclosure: 206-263-2649
Personal Property Tax: 206-263-2844
Business Hours: 8:30 a.m. - 4:30 p.m.