Oregon property owners commonly receive tax statements in the fall. In Multnomah County, the county says appeals of real market value or assessed value may be filed with the Property Valuation Appeals Board through December 31, 2026.
Official source
Multnomah County:
https://multco.us/news/news-release-property-tax-payments-are-due-nov-15-2026
Source reviewed August 2, 2026. Homeowners outside Multnomah County should use their own county’s current board instructions. Even within Multnomah County, confirm the live form, filing method, and deadline before relying on this summary.
Tax statement and value appeal are different questions
A payment due date and a property-value appeal deadline are not interchangeable. The tax statement can contain both financial information and the values used to calculate the bill, while the appeal process has its own authority and instructions.
Preserve the statement and property record
Save the complete tax statement, the county property record, and any notice or instructions that apply. Record the account identifier, real market value, assessed value, exemptions or limitations shown, and retrieval date.
Then compare the public description with the property as it exists. Possible questions involving size, class, condition, land, or improvements should be documented clearly and reviewed against the county process.
Prepare a source-visible packet
Keep official county information separate from homeowner-provided photographs, estimates, corrections, or other evidence. Label comparison data with its source and explain material differences among properties.
A clear packet does not promise that a board will accept a particular value. It makes the facts, sources, and reasoning easier to inspect.
FairPath helps homeowners organize their own evidence and documents. The homeowner remains responsible for deciding whether and how to file, submitting the materials, and presenting the appeal. FairPath does not guarantee acceptance, a value reduction, tax savings, or another result.