The values on soil types are determined by the Ohio Department of Taxation and given to all counties in the State of Ohio. The CAUV soil rates are updated every 3 years. An update occurred in Tax Year 2020, collected in 2021. The next update will be for Tax Year 2023 collected in 2024. You cannot protest the CAUV values. You do have the option to appeal your property’s market value by filing a Board of Revision Complaint Against the Valuation of Property.