How to appeal property taxes in Oregon
County-specific guides with this year's deadlines, the exact forms, and step-by-step filing instructions — researched from official Oregon sources. Or skip the reading: run your address through the free check and get your county's answer in about two minutes.
Clackamas County
How and when to appeal your Clackamas County, Oregon property assessment to the Property Value Appeals Board, including deadlines, filing steps, and what to expect.
Multnomah County
Multnomah County homeowners must file 2026 property value appeals by Dec. 31. Learn the forms, $30 fee, evidence tips, hearings, and savings math.
Washington County
Washington County, Oregon homeowners appeal their real market value to the Property Value Appeals Board (formerly BOPTA) by December 31, 2026, with no filing fee and no attorney required.
Not sure your county's worth appealing?
The free check pulls your actual assessment, compares it to nearby sales, and tells you the dollar answer — for any Oregon address.
Check my home free →