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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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Tax Payments

You can pay online using an electronic check, major credit card or VISA debit card. For an electronic check payment there is a $1.00 transaction fee. Credit card payments are charged a 2.50% convenience fee of the payment amount by the vendor. For a VISA debit card payment there is a $3.95 convenience fee charged by the vendor.  Please note that all convenience fees are charged whether the payment is made online or in person at the office.

Please see RCW 36.29.190 for an explanation of the fees when paying by credit card or electronic checks.

INTEREST/PENALTY

Interest accrues at a rate of twelve percent per annum (1%/mo). A three percent penalty is assessed on current year taxes delinquent on June 1st of the year in which the tax is due. An additional penalty of eight percent is assessed on the current year tax delinquent on December 1st. Additional collection fees will be added to delinquent Irrigation District assessments.

RETURNED PAYMENTS

A $35.00 fee will be charged for all returned payments.

PAYMENT UNDER PROTEST

To preserve your right to seek a court ordered refund, you must comply with requirements of the law per RCW 84.68.020 and WAC 458.18.215. The Treasurer's Office has no responsibility to determine if the protest is legally sufficient. The Treasurer's responsibility is limited to maintaining a file of petitions. You must make further action to file a claim on your own.