Washington County Property Tax Appeal Guide
In Washington County, file your appeal by File a notice of appeal with the county board of tax assessors within 45 days from the date the Annual Notice of Current Assessment was mailed. at Washington County Board of Tax Assessors's online portal.
| Deadline | File a notice of appeal with the county board of tax assessors within 45 days from the date the Annual Notice of Current Assessment was mailed. |
|---|---|
| Lien date | January 1, 2026 |
| Appeal body | County Board of Equalization (BOE) |
| Assessor / district | Washington County Board of Tax Assessors |
| Online portal | File online |
How to File a Appeal in Washington County
- Gather your assessment notice — it lists your account number and any access code
- File online through Washington County Board of Tax Assessors'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 BOE hearing