Property taxes are due by May 1

Property owners in King County have until Monday, May 1 to pay the first half of their 2017 property taxes. After that date, interest charges and penalties will be added to the tax bill.

To make the process easier, King County provides several ways for taxpayers to pay their taxes quickly and conveniently. Tax payments can be made: Online through eTax; by mail if postmarked no later than May 1; in person at King County Community Service Centers if paid by check for the exact amount due; or in person at Treasury Operations, sixth floor of the King County Administration Building, 500 Fourth Ave. in Seattle.

Through eTax, taxpayers may pay accounts with a credit card or an electronic debit from a checking account. This option provides immediate payment confirmation. To pay online or view property tax information, visit

Taxpayers paying by mail should include their tax statements and write the account numbers on their checks or money orders. Do not send cash.

The nearest King County Community Service Center is in Issaquah, inside the Issaquah District Court building, 5415 220th Ave. SE. To find other locations, visit

The Treasury Operations office is open from 8:30 a.m. to 4:30 p.m., Monday through Friday.

For questions about missing tax statements or other tax payment information, visit, contact King County Treasury Operations by email at, or contact a customer service specialist at (206) 263-2890.