OAR 150-309-0240: Contents of the Assessor’s Certified Ratio Study

The Assessor’s Certified Ratio Study shall be prepared in accordance with OAR 150-309-0250, completed according to instructions provided by the Department of Revenue, and consist of the following items: (1) Table of Contents. (2) Certification of assessor’s ratio study and adjustment program. (3) Analysis of valuation methods and procedures. (4) Introduction (purpose of report, format of the report, etc.). (5) Reconciliation of real market value forecast analysis. (6) Time trend analysis. (7) County map showing appraisal areas. (8) Listing of property class codes and descriptions. If the county has not yet converted to basic property class codes, as required by OAR 150-308-0310, provide a cross reference listing. (9) Ratio computations, conclusions and identification of each study area whether an adjustment will be made or not, with supporting data in conformance with the current edition of the Assessor’s Ratio Procedures Manual: (a) Pertinent sales listings and supplemental studies. (b) Computations of statistical data and conclusion explanations. (10) Summary of the valuation plan indicating those areas to be revalued, reappraised, or recalculated. (11) Summary of adjustments pages for all planned adjustments to bring all properties to 100% real market value (including all areas with no planned adjustments). (12) An after ratio study for areas revalued, reappraised or recalculated. The after ratio study is a sales to real market value ratio study that is designed to test whether or not a county’s annual valuation program has produced real market values that meet the statutory requirement to bring all properties to 100% of real market value.