King County property owners have until Thursday, Oct. 31 to pay the second half of their 2013 property taxes. After Oct. 31, interest charges and penalties will be added to the tax bill.

To make the process easier, King County provides several ways for property owners to pay their taxes quickly and conveniently. Tax payments can be made:

Online using King County’s secure online eTax application. Taxpayers may pay accounts with a credit card or an electronic debit from a checking account via an “eCheck.” The online option provides immediate payment confirmation. To pay online or view property tax information, taxpayers can visit www.kingcounty.gov/propertytax.

By mail if postmarked no later than Oct. 31, 2013. Taxpayers should include their tax statement and write the property tax account number on their check or money order. Cash should not be sent through the mail.

In person at the King County Administration Building, Room 600 – Treasury Operations, 500 Fourth Ave., Seattle, 98104, Monday through Friday between 8:30 a.m. and 4:30 p.m. On Thursday, Oct. 31, Treasury Operations will be open until 5 p.m.