The Assessor's Office only sets the assessed values.
We do not set the millage rates, which comprises the second of the two factors that determine your actual tax bill. (Total assessed value X millage rate / 1000 /= taxes, but Taxable assessed value X millage rate / 1000 = taxes.
By law we must reassess all property every four years. 2020 was a quadrennial reassessment year. The purpose of reassessment is to ensure the uniform and equitable valuation of all property. Assessed values are based upon sales data from the legally required sales period of July 1, 2018 through June 30, 2019. These values are then used for the next four years until the next reassessment in 2024.