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Prosser Office

620 Market St

PO Box 630

Prosser, WA 99350

© 2017 by Benton County Treasurer

Kennewick Office

5600 W Canal Dr Ste A

Kennewick, WA 99336

Phone: 509-786-2255 or 509-735-8505

Email: Treasurer@co.benton.wa.us

Hours: 8:30am - 4:30pm Monday - Friday

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Forms

Automatic Payment Enrollment Forms:

ACH Monthly Payment Plan

Please note: The cutoff dates to apply for the Monthly Installment payment plan are January 5th for the first half and May 1st for the second half of each year.

ACH Semi-Annual Property Tax Payment

Please note: The cutoff dates to apply for the Semi-Annual payment plan are April 15th for the first half and October 15th for the second half of each year.