How to appeal your property tax value in Washington

2 sourced points for Washington, each linked to the official page it comes from.

You appeal your assessed value by filing a petition with the county board of equalization, on a form prescribed or approved by the Department of Revenue. app.leg.wa.govOct 24
If you disagree with the county board's decision, you can appeal to the state Board of Tax Appeals within thirty days after the decision is mailed. There's no filing fee. app.leg.wa.govOct 24

The dates

Date and source	Deadline	Applies to
July 1 every yearapp.leg.wa.govOct 24	Appeal deadline Appeal your value to the county board	All 36 Washington counties except King, Snohomish, Clark