CLACKAMAS COUNTY PROPERTY TAX APPEAL
Think your Clackamas County value is too high? I’ll handle the appeal.
I file 2026-27 property value appeals with the Clackamas County Property Value Appeals Board for homeowners in Lake Oswego, West Linn, Oregon City, Happy Valley, Milwaukie, Wilsonville and the rest of Clackamas County. I do the evaluation and the paperwork and represent you at the hearing. You pay my fee only if your taxes go down.
Property tax appeals / Clackamas County
December 20, 2026
Last day for the last required client signature (Pacific time) to lock in my standard 22.5% fee.
December 31, 2026
Clackamas County’s deadline to file an appeal for the 2026-27 tax year.
February to April 15, 2027
Expected hearing season. The county’s notice sets your date.
Filing in Clackamas County
- Five copies of the appeal are filed with the county. I prepare them.
- County filing fee, if any: I confirm it with you before filing.
- Deadline December 31, 2026 for the 2026-27 tax year.
- Your signed authorization for me to represent you.
- Evidence of market value as of January 1, 2026 can go with the petition or be presented at the hearing.
County rules checked in October 2026. I confirm the current rules and any fee with you before anything is filed.
How it works
Tell me about your property
Send the short form with the property address and your tax account number if you have it.
Sign the agreement and authorization
Nothing is filed until both are signed. Your fee rate is set by the date of the last required client signature.
I check whether an appeal can save you money
I compare the county’s January 1, 2026 market value with recent sales and your home’s condition, and check whether a lower value would actually lower your bill. If it can’t, I tell you and we stop at no cost.
I file and represent you
I file with the Clackamas County Property Value Appeals Board before December 31 and present the case at the hearing, so you don’t need to attend.
What it costs
| County filing fee (you pay the county) | County filing fee, if any (I confirm it before filing) |
|---|---|
| My fee | 22.5% of your 2026-27 tax savings, only if the appeal lowers your taxes (last required client signature by December 20, 2026, Pacific time) |
| Holiday rush fee | 50% of your 2026-27 tax savings, only if the appeal lowers your taxes (last required client signature December 21 or later, Pacific time, up to the county deadline) |
| If the appeal doesn’t lower your taxes | You owe me nothing |
Clackamas County questions
What is the Clackamas County appeal deadline?
Appeals for the 2026-27 tax year must be filed by December 31, 2026. I file well before the deadline.
Does Clackamas County charge a filing fee?
I am confirming Clackamas County’s current filing fee, if any. I will tell you the amount before anything is filed, and you pay any county fee whether or not the appeal succeeds.
How many copies does Clackamas County need?
Clackamas County asks for five copies of the appeal. I prepare and file them for you.
Will a lower value lower my taxes?
Not always. A lower market value may lower your assessed value or your taxes under Oregon’s constitutional limits, called compression, or it may save nothing. I check this before recommending an appeal.
Do I need to go to the hearing?
No. I represent you at the Clackamas County Property Value Appeals Board. You are welcome to attend.
Full details, fees and payment options are on the main property tax appeal page. Other counties: Multnomah County and Washington County.
This page explains a service; it is not legal or tax advice. The appeals board decides every appeal, and no result is guaranteed. Nathan Austin Property Tax Appeal is Nathan Austin’s own business. Nathan Austin, Oregon licensed real estate broker #201244900.