Washington Department of Revenue
Property Tax Division
6400 Linderson Way
Tumwater, WA 98512
PO Box 47471
Olympia, WA 98504-7471
FAX (360) 534-1380
Washington's Utility Assessment Calendar
March 15 - Annual Reports Due, 5% penalty for being late, 10% penalty for being 30 days late, 25% penalty for non-filing.
June 30 - Assessments mailed out to companies.
July First ten working days - Company may request a hearing, in writing.
July Second ten working days - Appeals.
August 20 - Final Value notices sent to companies.
Sept. to Jan. - Equalized Values sent to companies. Companies have 30 days to appeal before State Board of Tax Appeals.