Umatilla County Property Tax Appeal Guide
In Umatilla County, file your appeal by December 31, 2026 at Umatilla County Assessment and Taxation's online portal.
| Deadline | File a petition with the clerk of the county Property Value Appeals Board (PVAB) during the period after the tax statements are mailed for the current tax year (statements are mailed by October 25) and ending December 31. If December 31 falls on a Saturday, Sunday, or legal holiday, the deadline moves to the next business day. |
|---|---|
| Lien date | January 1, 2026 |
| Appeal body | Property Value Appeals Board (PVAB) |
| Assessor / district | Umatilla County Assessment and Taxation |
| Online portal | File online |
How to File a Appeal in Umatilla County
- Gather your assessment notice — it lists your account number and any access code
- File online through Umatilla County Assessment and Taxation's portal or by mail
- State your grounds and submit evidence (comparable sales, a licensed appraisal, or photos of defects)
- Request an informal review to try to settle before a formal PVAB hearing