What is the deadline for filing a property tax appeal?

The deadline for filing a property tax appeal in King County is determined by the specific assessment year and is generally April 30th or 60 days from the date the property tax valuation notice was mailed, whichever is later. It is advised to carefully review the valuation notice for the exact deadline applicable to your case. Missing this deadline may result in the forfeiture of your right to appeal for that assessment year. To ensure a timely submission, it is recommended to initiate the appeal process well in advance and gather all necessary documentation and supporting evidence. It is also important to consult the King County Assessor's website or contact their office directly for any updates or changes to the deadline.