Appealing Your Property Tax Assessment in Washington
Deadlines and steps to appeal a property tax assessment in Washington, and when property taxes are due.
Short answer: Appeals of assessed value go to the county board of equalization on the Taxpayer Petition for Review of Property Valuation Determination form (a letter or phone call is not accepted). Washington Department of Revenue, Appealing Your Property Assessment to the County Board of Equalization
| Appealing your assessment | Appeals of assessed value go to the county board of equalization on the Taxpayer Petition for Review of Property Valuation Determination form (a letter or phone call is not accepted). The deadline is the later of July 1 of the assessment year or 30 days after the assessor's Change of Value Notice was issued; some counties extend it to 60 days. The appeal must give specific market evidence, not just a claim that value or taxes are too high. The county board's decision may be appealed to the state Board of Tax Appeals within 30 calendar days of its postmarked date; alternatively, taxes may be paid under protest and a refund suit filed in superior court. |
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| When property taxes are due | The first half of property taxes is due by April 30 and the second half by October 31; an unpaid second half is subject to 1% interest per month. |
More Washington property tax & homestead exemptions
- The Homestead Exemption in Washington
- Senior, Veteran and Disability Property Tax Relief in Washington
- All Washington property tax & homestead exemptions rules
FAQ
How do you appeal a property tax assessment in Washington?
Appeals of assessed value go to the county board of equalization on the Taxpayer Petition for Review of Property Valuation Determination form (a letter or phone call is not accepted). The deadline is the later of July 1 of the assessment year or 30 days after the assessor's Change of Value Notice was issued; some counties extend it to 60 days. The appeal must give specific market evidence, not just a claim that value or taxes are too high. The county board's decision may be appealed to the state Board of Tax Appeals within 30 calendar days of its postmarked date; alternatively, taxes may be paid under protest and a refund suit filed in superior court.
When are property taxes due in Washington?
The first half of property taxes is due by April 30 and the second half by October 31; an unpaid second half is subject to 1% interest per month.
General legal information, not legal advice. Laws change and local rules can differ; check the linked official source or talk to a lawyer about your situation.