Kennewick Property Tax Records
Property tax records for Kennewick, Washington are managed by Benton County. The Benton County Assessor sets assessed values for all parcels in Kennewick, and the County Treasurer handles billing and collection. The City of Kennewick levies its own city taxes, but all property assessment and collection functions run through county offices. If you need to look up a parcel, check a tax balance, apply for an exemption, or search recorded documents for a Kennewick property, this guide covers the tools and offices you need.
Kennewick Overview
Benton County Assessor and Kennewick Properties
The Benton County Assessor determines fair market value for all real and personal property in Kennewick and the rest of the county. Real property is physically inspected and statistically revalued annually. Personal property, which includes business equipment, is reported by owners and assessed at market value. The assessor's main office in Kennewick is open Monday through Friday, 8:30 AM to 4:30 PM. The Prosser office operates Tuesday through Thursday, 8:30 AM to 4:30 PM, by appointment only.
Property taxes in Kennewick are calculated by multiplying the assessed value by the applicable tax rate. Those rates fund schools, fire departments, law enforcement, and other local services. Tax rates change each year based on budgets set by each taxing district. The County Treasurer bills taxpayers and then distributes collected funds to the state, school districts, Benton County, and the City of Kennewick. The full overview of how property taxes are structured is available at bentonwa.org/Property_Tax.html.
Building permit applicants in Kennewick must supply their Benton County parcel number. Building and Development Services is located at City Hall, 210 W 6th Avenue, Kennewick, WA 99336, with a general phone line at 509-585-4266.
Kennewick Property Tax Records Online
The Benton County Property Access Portal is the primary online search tool for Kennewick parcels. You can search by account number, 16-digit parcel number, or property address. The parcel number format is 000000-000-0000, where the first six digits represent the township, range, and section. A "Results Display" dropdown lets you switch between tax years, including the current 2025 to 2026 period.
The Benton County Property Access Portal allows Kennewick residents to search parcel records by address, account number, or parcel number and view detailed tax and assessment data.
Once you select a parcel, you get tabs for Property, Pay Tax Due, Taxes and Assessment Details, Values, Map List, Taxing Jurisdiction, Improvement and Building, Sketch, Property Image, Land, Roll Value History, and Deed and Sales History. The Taxing Jurisdiction tab is especially useful because it shows exactly which taxing districts apply to your parcel and what rates those districts are charging. Access the portal at propertysearch.co.benton.wa.us.
An example Benton County property detail page shows the account details, legal description, tax area, land use code, and owner information for a Kennewick parcel.
Paying Kennewick Property Taxes
The Benton County Treasurer handles all tax payments for Kennewick properties. First-half taxes are due April 30. Second-half taxes are due October 31. Online payments are available through the Treasurer's website. Payment methods include credit card, debit card, and electronic check, though service fees apply to each. Drop box locations are available in Kennewick, Prosser, and Richland for in-person drop-offs outside office hours.
The Benton County Treasurer's online payment page at bentoncountytax.com lets Kennewick property owners pay taxes, check balances, and set up automatic payment plans.
| Kennewick Office | 7122 W Okanogan Pl #E110, Monday–Friday, 8:30 a.m. to 4:30 p.m. |
|---|---|
| Prosser Office | 620 Market St, PO Box 630, Mon/Wed/Fri, 10:00 a.m. to 2:00 p.m. |
| Phone | 509-735-8505 (Kennewick) / 509-786-2255 (Prosser) |
| Treasurer@co.benton.wa.us | |
| Auto Info Line | 509-786-5710 |
Automatic payment plans can be set up through the Treasurer's office to avoid missed deadlines. Payments should be remitted to the Tax Processing Center at the Kennewick address. Real Estate Excise Tax forms are required for all ownership transfers. Failure to pay taxes can eventually trigger foreclosure proceedings under RCW 84.64.060.
Property Tax Exemptions in Kennewick
Benton County offers several property tax exemption programs for Kennewick residents. Senior Citizens and Disabled Persons Exemption reduces taxes for those who qualify. Under RCW 84.36.381, eligible homeowners can freeze their assessed value for tax purposes and be exempted from various levies. Contact the Benton County Assessor's office to ask about income and age thresholds for the current year.
The Open-Space Farm Exemption provides tax relief for agricultural land that is actively farmed. This program encourages continued agricultural use of land by reducing the tax burden on farm parcels. Appeals to the Benton County Board of Equalization require comparable sales documentation and must be filed within the appeal window after assessment notices go out.
Veteran exemption programs are also available through the county. The assessor's website at bentonwa.org/Assessor.html has current information on exemption types and application procedures. For questions about online payments or account setup, visit bentoncountytax.com/online-payments.
Kennewick City Property Tax Levy
Taxes are the City of Kennewick's most important revenue source. The city levies several types of taxes, including sales and use taxes, property and road taxes, utility taxes, gambling taxes, and admissions taxes. Property taxes are based on fair market value as determined by the Benton County Assessor. The County Treasurer bills and distributes those taxes to the state, school districts, county, city, and special districts.
The local sales tax rate in Kennewick is 8.8%, made up of a state component of 6.5%, a city share of 0.85%, a county share of 0.35%, transit at 0.60%, and criminal justice at 0.10%. A voter-approved 0.3% public safety sales tax from 2013 is split 60/40 between Benton County and the cities. For a full breakdown of Kennewick's tax structure, visit go2kennewick.com/293/Taxes.
The City of Kennewick Finance and Budget page outlines how city taxes are structured and where residents can access Benton County parcel numbers and tax records.
Benton County GIS for Kennewick Properties
The Benton County GIS Department provides interactive web maps covering zoning, land use, and property information for the Kennewick area. The Property Search tool displays parcel boundaries, ownership records, and zoning classifications. A Wayfinding Map helps locate government offices and landmarks. The address verification tool ensures consistency with state E911 standards, which is useful for confirming address records on a parcel. Open GIS data is available for download.
Contact the GIS department at gis@co.benton.wa.us or call (509) 786-5485. The GIS tools are available at bentonwa.org/GIS.html. These maps can be especially useful when checking the taxing jurisdiction for a Kennewick parcel, since the city boundary determines which levies apply.
Note: Data in the Benton County Property Access Portal is provided as public domain but without warranty of accuracy or completeness. Always verify critical information directly with the Assessor or Treasurer before relying on it for a purchase or legal decision.
Benton County Property Tax Records
Kennewick is in Benton County, and all property tax records for the city run through county offices. For a full overview of the Benton County Assessor, Treasurer, exemption programs, and parcel search tools, visit the Benton County property tax records page.
Nearby Cities
These cities are near Kennewick in southeastern Washington and use Benton or Franklin County systems for property tax records.