First half of Thurston County property taxes due April 30

The deadline to pay 2026 first half property taxes in Thurston County is Thursday, April 30. 

Those who owe property taxes this year are required to pay at least half of what they owe by April 30. The remaining balance is due Oct. 31.

As required by Washington State law, late fees will be charged for those who do not make their tax payment on time.

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 3000 Pacific Ave. SE, Olympia, WA 98501. Payments must be postmarked by April 30.
• Drop off: Payments may be dropped in the green drop box located near the flag poles outside the Thurston County Atrium building.
• In person: Payments may be made in person at the Treasurer’s Office during business hours. The same credit/debit card fees apply as with online payments.

Treasurer staff are available to answer questions by phone at 360-786-5550 or email at trsr@co.thurston.wa.us during business hours of 8 a.m. to 4:30 p.m., Monday through Friday.

Property owners can 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, visit www.thurstoncountywa.gov/departments/treasurer.

In total, the county assessed $652,290,192 in property taxes between all jurisdictions this year.

Thurston County mailed 2026 property tax notices to local taxpayers on Monday, Feb. 9.