Oregon Property Tax Appeal:
How to Fight Your Over-Assessment
In Oregon, 47% of appeals succeed with an average savings of $1,050/year. Yet fewer than 5% of homeowners ever file. Here’s how to do it — and how Tax Ghost generates your formal appeal letter for $24.99.
Oregon Property Tax Appeal — Key Facts
How to Appeal in Oregon
Check your assessment notice
Your county assessor mails assessment notices — usually in spring. The notice shows your assessed value and the appeal deadline. In most states you have 30–90 days from the notice date.
Gather comparable sales
Find 3–5 similar properties in your neighborhood that sold recently at prices below your assessed value. Use Zillow, Redfin, or your county recorder's public records. The more recent and similar the sales, the stronger your case.
File your formal appeal
In Oregon, you file with the County Board of Property Tax Appeals (BOPTA). File petition with the County Board of Property Tax Appeals by December 31 of the year taxes are assessed. Further appeals go to the Oregon Tax Court (Magistrate Division). File before December 31 (petition to Magistrate Division of Oregon Tax Court).
Present your evidence at the hearing
Show up with your comparables. Be calm and factual. You don't need a lawyer. Appeals boards are accustomed to homeowners representing themselves. Simply demonstrating that comparable properties sold for less than your assessment is often enough to win a reduction.
Expert tip for Oregon
Oregon separates "Real Market Value" (RMV) from "Maximum Assessed Value" (MAV). Both can be challenged. The RMV challenge is most common for over-assessed properties.
Get your Oregon appeal letter — $24.99
Formal appeal letter citing Or. Rev. Stat. § 309.100, addressed to the County Board of Property Tax Appeals (BOPTA). Evidence checklist and filing instructions included. PDF delivered in 60 seconds.
Free scan → pay only if you want the letter
Frequently Asked Questions
How do I appeal my property tax assessment in Oregon?
In Oregon, you file an appeal with the County Board of Property Tax Appeals (BOPTA). The deadline is December 31 (petition to Magistrate Division of Oregon Tax Court). You can file yourself — no attorney required. File petition with the County Board of Property Tax Appeals by December 31 of the year taxes are assessed. Further appeals go to the Oregon Tax Court (Magistrate Division).
What is the property tax appeal success rate in Oregon?
Approximately 47% of property tax appeals in Oregon result in a reduced assessment. The average annual tax savings for successful appeals is around $1,050.
What evidence do I need to win a property tax appeal in Oregon?
The strongest evidence is 3–5 recent comparable sales in your neighborhood with sale prices below your assessed value. An independent appraisal is also very effective. You can find comparables on Zillow, Redfin, or your county recorder's public records.
What law governs property tax assessments in Oregon?
Property tax assessments in Oregon are governed by Or. Rev. Stat. § 309.100. Under this law, property must be assessed at fair market value — defined as what a willing buyer would pay a willing seller in an arm's-length transaction.
Do I need a lawyer to appeal my property taxes in Oregon?
No. The vast majority of successful Oregon property tax appeals are filed by homeowners without attorneys. You simply need to file your appeal before the deadline and present evidence (comparable sales) showing your property's market value is lower than the assessed value.