Appeal Property Assessment in Tacoma, Washington

Taxation and Finance Washington 3 Minutes Read · published February 10, 2026 Flag of Washington

In Tacoma, Washington, property owners who disagree with an assessed value should follow the formal appeal channels for their jurisdiction. Most assessment appeals for Tacoma properties are handled through county appeal procedures administered for Pierce County; state law establishes the board of equalization process and timelines for filing an appeal.[1] Pierce County publishes local instructions, forms, and contact points for filing an appeal or requesting an informal review with the Assessor-Treasurer's office.[2]

How the appeal process works

The typical path is: request an informal review with the assessor or their staff; if unresolved, file a formal appeal to the county Board of Equalization; attend a hearing (virtual or in-person); then, if needed, pursue judicial review. Action steps are listed below in the How-To section.

Penalties & Enforcement

Assessment appeals are administrative and do not generally create criminal penalties, but incorrect or fraudulent declarations can lead to administrative adjustments, interest, or civil action. Specific monetary fines for misrepresentation are not specified on the cited page.[1]

  • Monetary penalties: not specified on the cited page.[1]
  • Appeal forum: county Board of Equalization for Pierce County; final judicial review in superior court.[1]
  • Enforcer/administrator: Pierce County Assessor-Treasurer and Pierce County Board of Equalization for Tacoma properties.[2]
  • Inspection and evidence: assessor staff may inspect property; parties should submit sales, appraisal, or cost data as evidence.
  • Appeal timelines: specific filing deadlines and time limits are not specified on the cited page; consult the county instructions when your assessment notice is issued.[2]
Keep records of valuation notices, photos, and comparable sales when preparing an appeal.

Applications & Forms

Pierce County provides the formal appeal form and guidance for filing with the Board of Equalization. If the county form name or number is not published on the instructions page, state that no specific form number is provided and use the county guidance for submission methods and deadlines.[2]

Common violations and typical consequences

  • Failure to file or meet appeal deadlines: may forfeit administrative appeal rights.
  • Filing materially false information: administrative correction or referral for civil action if warranted.
  • Refusal to permit inspection: assessor may make an estimated valuation using available data.
Start an informal review with the assessor as soon as you receive your valuation notice.

FAQ

How do I start an appeal of my Tacoma property assessment?
Begin with an informal review with the Assessor-Treasurer; if unresolved, file a formal appeal to the Pierce County Board of Equalization. See county instructions for forms and filing methods.
What evidence should I bring to a hearing?
Bring comparable sales, a recent independent appraisal, photos, repair estimates, and any records that support a lower or corrected value.
Are there fees to file an appeal?
Filing fees vary by county or may not apply; check the Pierce County instructions or contact the Assessor-Treasurer for current fee information.

How-To

  1. Check your assessment notice immediately and note the deadline for review or appeal.
  2. Contact the Pierce County Assessor-Treasurer for an informal review; request the assessor’s explanation of the valuation.
  3. Gather evidence: sales comparables, appraisal reports, photographs, and repair invoices.
  4. File the county Board of Equalization appeal form if the informal review does not resolve the issue; follow county submission instructions.
  5. Attend the hearing and present your evidence; ask for findings in writing.
  6. If still dissatisfied, consider judicial review in superior court within the time limits set by statute or county rule.

Key Takeaways

  • Start with an informal review to resolve the majority of valuation disputes.
  • Collect strong evidence before filing a formal appeal with the county board.
  • County and state rules determine deadlines and appeal forums; verify timelines when your notice is issued.

Help and Support / Resources

  1. [1] RCW 84.40.010 - Board of equalization jurisdiction and appeals.
  2. [2] Pierce County Assessor-Treasurer - Appeals and review information.

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