Washington County Tennessee Residents Will Be Getting Property Tax Reappraisal Notices In The Mail Soon. Property Assessor Robbie McGuire Said While Home Values Are Up By An Average Of 54-Percent, Homeowners Taxes Won’t Be Going Up By That Much. After The Tennessee Comptroller’s Office Approves A County’s Reappraisal Totals, The Tax Rate Is Recalculated. McGuire Estimates The New Certified Rate Would Be Approximately $1.40 Per $100 Of Assessed Value. The State Will Certify The Rate April 17th.