Payments By Mail/Drop Box
CHECK PAYMENTS (Endorsed to Benton County Treasurer and include Remit Coupon)
Benton County Treasurer
Tax Processing Center
7122 W Okanogan Pl #E110,
Kennewick, WA 99336
**Payments received via mail are applied according to the date of the US postmark. Please allow time for processing by the US Post Office to ensure timely payment.
DROP BOX LOCATIONS: -OPEN April and October