The Washington State Board of Tax Appeals is in the process of upgrading its systems to allow for online filing of all submissions.
Online filing is still on its way! Implementation has been delayed, and is now expected to be completed this fall.
Online filing will still start as a voluntary option. The Board will work with stakeholders on a schedule to phase-in mandatory electronic filing at a later time.
Questions or comments may be directed to Kate Adams at firstname.lastname@example.org.