Benton County, OregonProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Tax bill mailing
- No later than October 25, 2026; the official Benton County Assessment FAQ states property tax statements are mailed no later than October 25.
- Payment deadline
- For tax year 2026, full payment is due November 15, 2026 for a 3% discount; a 2/3 payment is due November 15 with the final 1/3 due May 15, 2027; three installments are due November 15, 2026, February 15, 2027, and May 15, 2027.
- Assessment appeal
- For tax year 2026, Property Value Appeals Board petitions are accepted after tax statements are mailed through December 31, 2026; the official Benton County page states the filing deadline is December 31.
Exemptions & appeals
Exemption filing
Oregon has no general homestead exemption. For qualifying property-tax exemptions, applications are generally made between January 1 and April 1 of the tax year; the 2026 senior/disabled deferral application is filed after January 1 and by April 15, 2026, with late filing through December 1 subject to a county fee.
Senior relief
Oregon 2026 Property Tax Deferral for Disabled and Senior Citizens program: eligible homeowners apply through the county assessor after January 1 and by April 15, 2026 (late applications may be filed through December 1 with the county late fee); the Oregon Department of Revenue pays the 2026–27 property taxes and records a lien, subject to program eligibility.
Valuation limits
Oregon Measure 50 / ORS 308.146 generally limits maximum assessed value growth to 3% per year and assessed value cannot exceed real market value; exceptions include new property, improvements, partition/lot-line changes, disqualification from exemption or special assessment, and other statutory events. Measure 5 separately limits tax rates on real market value.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.