Welcome to the Property Tax Information System.
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 provided for your convenience:
If you cannot find answers to your questions in the FAQ menu, send us an e-mail via Contact - Property Tax or call 206-296-0923.
First half 2013 property taxes must have been paid or postmarked by April 30, 2013. Payments made after this date will be charged late fees. To make online payment(s), go to the King County E-commerce Property Tax Web page. It may take up to two weeks for your property tax payment to be reflected in our records after receiving your payment. 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.
Applications for viewing your tax information and payment process will time out within 20 minutes of inactivity. You will be forced to start over.
Note: Documents on this page are available in portable document format (PDF) .