Washington Property Tax

Washington assesses every parcel at 100% of market value, but the state’s signature limit does not touch the value at all: it caps the levy — the dollars each taxing district collects — at a growth rate of roughly 1% per year. The appeal deadline is likewise distinctive: the later of July 1 of the assessment year or 30 days after the change-of-value notice, filed with a county Board of Equalization, with appeals going up to the state Board of Tax Appeals.

In this section

• The levy limit: 101% of the highest lawful levy — why the limit is on the dollars a district collects, not on your value, and what a levy lid lift does.
• The change-of-value notice explained — the notice that starts the 30-day window, and why it matters even when July 1 has passed.
• Appealing to the Board of Equalization and the BTA — the two-step ladder, the petition form, and the no-extension rule at the state level.
• Washington property tax deadlines — the July 1 / 30-day rule, the BTA window, and the levy calendar.

Who does what

• The county assessor determines the assessed value each January 1 and mails a change-of-value notice whenever a parcel’s value changes.
• The county Board of Equalization (BOE) is the first appeal level — a county body that hears value petitions on the Department of Revenue’s own petition form.
• The Washington State Board of Tax Appeals (WSBTA) is the second level, hearing BOE appeals within 30 days of the decision.
• Taxing districts set their levies within the state levy limit; the Department of Revenue oversees the levy system and publishes the forms and manuals.

The limit is on the levy, not the value

Each taxing district’s levy may grow to at most 101% of its highest lawful levy since 1985 — smaller districts (under 10,000 population) adopt an annual resolution to take the 1%; larger ones use 100% plus the Implicit Price Deflator or 101%, whichever is less, unless a supermajority adopts a substantial-need resolution. Voters can approve a levy lid lift to exceed the limit, and a constitutional 1% aggregate limit sits on top as the outer bound. The levy limit page works through what this means for an individual bill.

Finding your property

Washington’s property searches are county-run — each of the 39 county assessors maintains its own records, and there is no statewide search. Your county assessor’s site is also where the change-of-value notice and BOE contact information originate; the Department of Revenue’s property tax pages link each county.

What this does not cover

County-specific BOE procedures (King County runs its own schedule), senior and disabled-person exemption programs, and district-by-district levy details are not covered here. AssessCheck has no data connection to any Washington county or the Department of Revenue.