Clark County Property Tax Appeal Guide

How to file with the Clark County Board of Equalization. Independent guide — not affiliated with Clark County.

Deadline: July 1 of the assessment year, or 60 days after the mailing date printed on your value notice — whichever is later. Most value notices are mailed in June; the rest in September. The date on your own notice is what controls; late petitions are generally not accepted.

1. Check whether you're over-assessed

The Board decides one question: is the assessed value higher than the property's true and fair market value as of January 1 of the assessment year? Your strongest evidence is recent sales of similar homes — ideally from the year before that date. Check your Clark County home free.

2. Fill in the official petition

Clark County accepts only the Washington Department of Revenue's petition, form REV 64 0075, as printed — don't resize or alter it. One parcel per petition. Sections 1–4 must be complete: owner information, the assessor's value and your value (land, improvements, total), specific reasons, and your signature.

3. File it

Mail or hand-deliver the signed petition, a copy of your value notice and your evidence to:

Clark County Board of Equalization
PO Box 5000
Vancouver, WA 98666-5000

  • Include a copy of your Notice of Value — the Board requires it.
  • You can instead email the signed petition and notice to boe@clark.wa.gov, or file through the Board's online appeal portal: https://lf.clark.wa.gov/Forms/PortalLogin
  • Evidence not sent with the petition must reach the Board at least 21 business days before your hearing.
  • The Board asks owners to try resolving the value with the Assessor first (assessor@clark.wa.gov, 564-397-2391).

4. Evidence and the hearing

  • Evidence not filed with the petition must reach the Board at least 21 business days before your hearing (WAC 458-14-066).
  • Use sales of comparable homes, adjusted for differences, plus photos and contractor estimates for any defects. The Board can't consider tax amounts, other properties' assessments, percentage increases or hardship.
  • The Assessor reviews your petition first and may offer a settlement (stipulation) — accepting it ends the appeal without a hearing.
  • Your hearing notice tells you where and how to attend. The Board mails its written decision afterwards.

Is Your Clark County Home Over-Assessed?

Free check against recent sales of similar homes. If you are, the full appeal packet — with the official petition filled in — is $39.

Check My Assessment — Free

Property data from the Clark County Assessor's open data (PACS), provided without warranty. This tool is not a product of, and is not affiliated with, Clark County.