Property Tax Evaluations In Washington County Tennessee Are Underway And Are Expected To Jump By As Much As 70% This Year. Assessor Of Property, Robbie Mcguire, Said Before Property Owners Get Sticker Shock, They Need To Keep In Mind Higher Appraised Values Don’t Necessarily Result In Higher Tax Bills. This Is Because The County Will Have To Adjust Tax Rates Once The Valuations Are Complete. Notices Are Mailed Out In October And Tax Bills Are Due By The End Of February.