Washington property tax appeal deadlines and filing windows for commercial real estate. Verify with your local assessor or appeal board for the specific jurisdiction before filing.
Verify before filing. Statutory deadlines change, and many counties operate on their own schedule inside the state framework. Always confirm the current year's window with the assessor or appeal board for the specific jurisdiction before relying on a date.
State-level deadlines plus major sub-jurisdictions where the schedule diverges from the state default. Where a column says "Varies," confirm the date with the local assessor.
| Month | Type | Event | Date | Details |
|---|---|---|---|---|
| June | Both | Value Notices Issued |
Varies | Varies locally from May-Dec |
| July | Both | Appeal Deadline |
1-Jul | the later of 1) July 1 of the year of assessment 2) Within 30 days after the date an assessment or value change notice is mailed (in 31 of WA’s 39 counties) 3) Within 60 days after the date an assessment or value change notice is mailed (for the remaining 8 counties, which includes all the major metros) |
RP = Real Property · BPP = Business Personal Property · Both = Applies to both
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