Lewis County Property Tax Appeal Guide
In Lewis County, file your appeal by June 22, 2026 at Lewis County Assessor's online portal.
| Deadline | An appeal of an assessment on the regular property roll must be filed in writing with the county board of equalization on or before the end of the county's normal business hours on the fourth Monday of June. |
|---|---|
| Lien date | January 1, 2026 |
| Appeal body | County Board of Equalization (BOE) |
| Assessor / district | Lewis County Assessor |
| Online portal | File online |
How to File a Appeal in Lewis County
- Gather your assessment notice — it lists your account number and any access code
- File online through Lewis County Assessor'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