Tax Certification Notice
The Benton County Treasurer's Office has completed the certification of the 2021 taxes. Please take some time to read the Tax Certification Letter. The tax statements are expected to be mailed by the end of February. If you have not received your statement by the middle of March, please give our office a call at (509)735-8505 for Kennewick Office or (509) 786-2255 for Prosser Office.