Benton County, WA Treasurer's Offie

Kenneth Spencer

Benton County Treasurer

Chief Deputy Treasurer


Benton County, Washington Treasurer Home Page

Kirsten Yniguez

Benton County Property Search is having connectivity issues at the moment. We are aware of the issue and working towards a solution. Please call our office for assistance 509-735-8505.



Benton County, WA News


Benton County, WA Business Hours

Prosser Office hours:

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

Closed for Lunch                          12:00pm - 1:00pm

Saturday                                        CLOSED

Sunday                                          CLOSED

Kennewick Office hours:

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

Saturday                                        CLOSED

Sunday                                          CLOSED

The Treasurer's Office is open and here to help! The Treasurer would like you to know that we are taking all necessary precautions to protect our staff and the public from the spread of COVID-19. In continuing to adhere with social distancing guidelines, the Treasurer's Office will continue to limit the number of taxpayers allowed in the office. If you have Real Estate Excise transactions, please email your documents to Treasurer@co.benton.wa.us for review. The Treasurer’s Office will contact you with the next available appointment.


Benton County, WA Contact Information

Benton County DOES NOT take payments over the phone. Please contact our office if you have any questions or need additional assistance.

Letter from the Treasurer

The Treasurer's Office is the property tax collector for Benton County and the Cities, School Districts, Fire Departments, and all the other taxing authorities in the County. Property Taxes are levied on the property by the various taxing authorities  based on the valuation and current property usage as set by the Assessor's Office.

As the "banker" for Benton County, the County Treasurer's Office is also responsible for collecting all other money other  County departments collect such as fees for services, licenses, and revenues from bond issues and special assessments.

As your Treasurer, I value your opinion and will consider it in establishing policies, designing services and updating our  service to you. If we have let you down, please tell me. If you are pleased, I would like to hear that too.

Kenneth Spencer, Jr.
Benton County Treasurer

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