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
Oregon Guides & Resources
📋 How to Appeal Property Taxes in Oregon: Complete 2026 Guide
Complete guide with deadlines, forms, and step-by-step instructions
📋 How Much Can Property Taxes Increase in Oregon? 2026 Complete Guide
Oregon caps, limits, and protections
📅 Oregon Property Tax Appeal Deadline 2026: December 31 Year-End
Oregon filing deadlines and process
🏦 Oregon's Measure 50 Caps Your Assessed Value at 3% a Year. For Many Homeowners, an Appeal Won't Touch the Tax Bill At All.
Measure 50 caps how fast your Assessed Value can rise, and when it's already sitting below market, appealing Real Market Value alone won't move your tax bill.
🔑 An Inherited Oregon Home Keeps Its Measure 50 Cap. The Real Invoices Are the Estate Tax and the Deferral Lien.
Measure 50's maximum assessed value has no ownership-change exception, so the county bill barely moves at death. The state ledger is where heirs get billed: a $1 million estate tax threshold, 6% interest on any senior deferral lien, and an August 15 repayment clock.
👤 Oregon's Property Tax Deferral for Disabled and Senior Homeowners (ORS 311.668): The State Pays the County, Records a Lien, Repaid From Sale Proceeds, $70,000 Income Cap for 2026
Deferral with state-recorded lien + universal Measure 50 3% cap
Illustrative Example: From $1.05M to $738K, a $5,648/Year Overassessment in Portland, OR
Illustrative example: 29.9% overassessment, $5,648/year in excess taxes
Oregon Has No Homestead Exemption. Measure 50's 3% Assessment Cap Is the Real Relief for Most Owners.
Oregon has no general homestead exemption. Measure 50's 3% cap on assessed value growth is the biggest lever for long-term owners.
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.
Flat Fee vs Contingency: Which Saves More?
$49 flat vs 25-50% of savings, see the break-even math at every savings level.
Frequently Asked Questions
How do I appeal my property tax in Oregon?
What is the Oregon property tax appeal deadline?
What is Oregon's property tax assessment ratio?
How much can I save by appealing in Oregon?
What evidence do I need for a Oregon property tax appeal?
What is the effective property tax rate in Oregon?
Can I file a Oregon property tax appeal online?
Ready to Appeal Your Oregon Property Tax?
Enter your address for a free overassessment analysis. If the numbers support a appeal, your complete evidence packet is $49.