OAR 150-309-0230
Assessor’s Ratio Study for Tax Purposes: Definitions

(1)

Appraisal area is an area in a county generally composed of one or more school districts, a city or other political subdivision, or any other logical division established by the county assessor for conducting an orderly reappraisal of taxable property as required by ORS 308.234 (Record of last appraisal).

(2)

A market area is a group of properties that generally shares important characteristics that influence value. Each market area should contain a sufficient number of accounts to ensure an adequate sale sample for analysis.

(3)

Appraisal ratio is the percentage relationship between the real market value for the prior year and an estimate of the current year’s real market value made by a qualified appraiser for a particular property.

(4)

Appraisal ratio study is a statistical compilation of appraisal ratios for a representative group of properties in the county randomly selected on a property class basis to produce an indication of the ratio of the prior year’s real market value to the current year’s real market value for all taxable properties in a particular class of property within the county, in a particular class of property within an appraisal area, or in a particular class of property within a market area.

(5)

Assessor’s ratio study is required to be filed with the clerk of the board of property tax appeals.

(6)

Class is a classification of property described in OAR 150-308-0310 (Real Market Value and Property Classification as Part of Assessment Roll).

(7)

Current assessment roll is the roll being prepared for the tax year beginning July 1, of the current calendar year.

(8)

Current real market value is the property’s real market value, or for specially assessed properties the statutory value, as of the January 1, assessment date for which the roll is being prepared.

(9)

New construction is a new structure or structures added to the current assessment roll or value added by completion of construction, remodeling, renovation or other physical improvement of existing property.

(10)

Properties added to the roll are any properties on the current assessment roll which were not assessed on the prior year’s roll. They include value added by changed status of specially assessed properties and value added through partitioning or subdividing properties.

(11)

Qualified appraiser is an appraiser registered pursuant to ORS 308.010 (Registered appraiser requirements) or who is licensed or certified under 674.310 (Duties and powers of board).

(12)

Ratio study is a study which estimates:

(a)

The percentage relationship between the total prior year’s real market value of each class of taxable property on the prior assessment roll and the total current real market value of the same properties in each class on the current assessment roll; and

(b)

The percentage relationship between the total prior year’s real market value of each class of taxable property on the prior assessment roll and the total current real market value of the same properties in each class on the current assessment roll within each appraisal area, or market area.

(13)

Sales ratio is the percentage relationship between the real market value for the prior assessment year and the selling price for a particular property.

(14)

Sales ratio study is a statistical compilation of sales ratios designed to produce an indication of the real market value ratio of each property class, and the real market value ratio of each property class within each appraisal area, or market area.

(15)

Taxable property includes all locally assessed property, real and personal, not exempt from taxation (whether appraised by the assessor or the Department of Revenue). It does not include properties assessed by the Department of Revenue pursuant to ORS 308.505 (Definitions for ORS 308.505 to 308.674) to 308.660.

(16)

Real market value ratio is the percentage relationship between the prior year’s real market value of a class of taxable property on the prior assessment roll and the current real market value of the same property on the current assessment roll.

Source: Rule 150-309-0230 — Assessor’s Ratio Study for Tax Purposes: Definitions, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=150-309-0230.

150‑309‑0010
Training for Board of Property Tax Appeals (BOPTA) Members 150‑309‑0020
Record of Board of Property Tax Appeals Meetings 150‑309‑0030
Limitations on Increase in Value by Board of Property Tax Appeals 150‑309‑0040
BoPTA Lack of Jurisdiction for Designated Utilities and Companies Assessed by the Department 150‑309‑0050
Nonoffice-holding Residents Appointed to Board of Property Tax Appeals (BOPTA) Pools 150‑309‑0060
Records Included in Journal of Governing Body 150‑309‑0070
Filing Petitions With The Board of Property Tax Appeals (BOPTA) 150‑309‑0080
Withdrawing Petitions Filed with a Board of Property Tax Appeals 150‑309‑0090
Contents of Board of Property Tax Appeals (BOPTA) Petitions 150‑309‑0100
Board of Property Tax Appeals (BOPTA) Defective and Amended Petition Process 150‑309‑0110
Those Authorized to Sign Petitions to the Board of Property Tax Appeals (BOPTA) 150‑309‑0120
BOPTA Hearing Notice Mailed to Representative 150‑309‑0130
Definition of Person Who Holds an Interest in the Property and Procedures for Transfers of Ownership or Interest 150‑309‑0140
Board of Property Tax Appeals (BOPTA) Procedures When Roll Changed after Petition is Filed 150‑309‑0150
Contents of Board Order for Property not Specially Assessed 150‑309‑0160
Mailing of Board Orders 150‑309‑0170
Adjustments to Personal Property Value 150‑309‑0180
Disposition of Appeals of Property Assessed as an Undivided Interest 150‑309‑0190
Adjudicated Value Calculation for Centrally Assessed Property 150‑309‑0200
Adjudicated Value Applied to Component Appealed 150‑309‑0210
Trending and Indexing an Adjudicated Value 150‑309‑0220
Additions, Remodeling and Rehabilitation 150‑309‑0230
Assessor’s Ratio Study for Tax Purposes: Definitions 150‑309‑0240
Contents of the Assessor’s Certified Ratio Study 150‑309‑0250
Preparation of the Sales Ratio Study 150‑309‑0260
Administration of Appeals Process 150‑309.360
Migrated from Repeals and Renumbers file
Last Updated

Jun. 8, 2021

Rule 150-309-0230’s source at or​.us