2026 First Half Property Taxes Due Today - Thursday April 30
Updated: Thursday, April 30, 2026
Friendly reminder that the first half of Thurston County property taxes are due today. There are several ways you can get them in on time, including paying online through our secure website, paying them in person in the Treasurer's Office inside the County's Atrium building before 4:30 PM today or dropping them into the Green Drop Box in front of the County's Atrium Building.
The County's Atrium Building is located at 3000 Pacific Ave SE, in Olympia, Washington. The Treasurer's Office is inside the Atrium and open today until 4:30 PM. See details below and on the Treasurer's webpage.
Mailing your tax payment is an option, but the U.S. Postal Service no longer guarantees same-day postmark which might result in a late payment.
CONTACT: Jeff Gadman, Thurston County Treasurer, 360-786-5550 or email jeff.gadman@co.thurston.wa.us
2026 First Half Property Taxes Due April 30
Payment may be made online, in person, or mailed
OLYMPIA – The deadline to pay 2026 first half property taxes is Thursday, April 30, 2026.
Options to pay property taxes include:
Online: Pay online at www.thurstoncountywa.gov/departments/treasurer. There is no additional charge for an electronic check payment, but there is a 1.0% transaction fee for a debit card payment and a 2.3% transaction fee for a credit card payment. Thurston County does not receive any of the fees charged.
Mail: Checks or money orders may be mailed to the Thurston County Treasurer at the address below. Payments must be postmarked by April 30, 2026. The U.S. Postal Service no longer guarantees same-day postmark. Please mail your payment early.
Drop Off: Payments may be dropped in the green drop box located near the flag poles outside the Thurston County Atrium building at the address below.
In Person: Payments may be made in person at the Treasurer’s Office during business hours at the address below. The same credit/debit card fees apply as with online payments.
The Treasurer’s Office location and mailing address are 3000 Pacific Ave SE, Olympia, WA 98501.
Treasurer staff are available to answer your questions by phone or email during our business hours of 8:00am to 4:30pm, Monday through Friday. Call us at 360-786-5550 or email us at trsr@co.thurston.wa.us.
As required by Washington State law, late fees will be charged for those who do not make their tax payment on time.
Property owners may also sign up for paperless billing to receive future property tax statements electronically, saving paper and postage. Those who create an online account have the option to set up automatic payments or schedule a tax payment in advance. To learn more or enroll in these services, please visit our website at www.thurstoncountywa.gov/departments/treasurer.