How to Appeal Your Property Tax in Oregon
Oregon homeowners can appeal their property tax assessment if they believe it's too high. This guide covers the 2026 appeal deadline, required evidence, and step-by-step process.
2026 Appeal Deadline: December 31
Don't miss your window. Missing the deadline means waiting another full year.
How Oregon Assesses Property
Oregon assesses residential property at 100% of market value.
Oregon assesses real market value at 100%. Measure 50 limits assessed value growth to 3% per year, so taxable value is often lower.
The Appeal Process
Appeals are heard by the Board of Property Tax Appeals (BOPTA). An informal review is available before filing a formal appeal.
County Assessor (Informal)
Board of Property Tax Appeals (BOPTA)
Magistrate Division, Oregon Tax Court
Regular Division, Oregon Tax Court
Oregon Appeal Deadline
What Overassessment Costs Oregon Homeowners
The median home in Oregon is worth $397,000. If your assessment is just 10% too high, you may be overpaying:
~$345/year
Effective tax rate: 0.87% · Median value: $397,000
Check Your Oregon Assessment
Enter your address to see your estimated overassessment and Oregon filing deadline.
Oregon Counties
Guides & Resources
Property Tax Appeal Resources
Best Appeal Services Compared
7 companies compared — pricing, coverage, and pros/cons for 2026.
2026 Appeal Deadlines
Every state's deadline, filing method, and what happens if you miss it.
Assessment Ratios by State
Every state's assessment percentage — from 4% to 100% — with worked examples.
9 Ways to Lower Your Property Taxes
From homestead exemptions to formal appeals — every method that works.
Savings Calculator
Check if you're overassessed — enter your assessed value to see potential savings.