ORS 308.225
Boundary changes

  • procedure

(1)

In preparing the assessment roll in any year, a county assessor shall disregard changes or proposed changes described in subsections (3), (4) and (5) of this section in the boundary lines of any taxing district levying ad valorem property taxes if the description and map showing changes or proposed changes are not filed in final approved form, in accordance with and at the time required by subsection (2) of this section.

(2)

Intentionally left blank —Ed.

(a)

If a boundary change is made or proposed, the person, governing body, officer, administrative agency or court that is or will be responsible for determining whether the boundary change is final shall file with the county assessor and the Department of Revenue the legal description of the change or proposed change and an accurate map showing the change or proposed change in final approved form, on or before March 31 of the assessment year to which the boundary change applies.

(b)

Intentionally left blank —Ed.

(A)

Except as otherwise provided in subparagraph (B) of this paragraph, the legal description of the boundary change must consist of a series of courses in which the first course starts at a point of beginning and the final course ends at the point of beginning. Each course must be identified by bearings and distances and, when available, refer to deed lines, deed corners and other monuments, or, in lieu of bearings and distances, be identified by reference to:
(i)
Township, range, section or section subdivision lines of the United States Public Land Survey System.
(ii)
Survey center line or right of way lines of public roads, streets or highways.
(iii)
Ordinary high water or ordinary low water of tidal lands.
(iv)
Right of way lines of railroads.
(v)
Any line identified on the plat of any recorded subdivision defined in ORS 92.010 (Definitions for ORS 92.010 to 92.192).
(vi)
Donation land claims.
(vii)
Line of ordinary high water and line of ordinary low water of rivers and streams, as defined in ORS 274.005 (Definitions), or the thread of rivers and streams.

(B)

In lieu of the requirements of subparagraph (A) of this paragraph, boundary change areas conforming to areas of the United States Public Land Survey System may be described by township, section, quarter-section or quarter-quarter section, or if the areas conform to subdivision lots and blocks, may be described by lot and block description.

(c)

The county assessor or the department shall provide a map to the person, body, officer or agency making the filing within 14 days after the filing body notifies the assessor and department that a boundary change is being proposed. Upon receipt, the filing body shall accurately enter the boundary line on the map.

(d)

The description and map must be filed in final approved form on or before March 31 of the assessment year to which the boundary change applies. Proposed changes must be certified to the county assessor and the department in the same manner as changes. If the taxing district is located in more than one county, the description and map shall be filed with the assessor in each county and with the department within the time provided in this subsection.

(3)

For purposes of this section, boundary change means the change that occurs in the boundaries of a district by reason of:

(a)

The formation of a new district;

(b)

The consolidation or merger of two or more districts or parts thereof;

(c)

The annexation of territory by a district;

(d)

The withdrawal of territory from a district; or

(e)

The dissolution of a district.

(4)

For purposes of this section, the establishment of tax zones within a district constitutes a boundary change.

(5)

For purposes of this section, a proposed change means a boundary change that has not become final or effective on or before March 31 and that:

(a)

Is certain to become final or effective before July 1 of the same year; or

(b)

Is subject to voter approval in an election held before July 1 of the same year and that becomes final or effective before July 1 of the same year.

(6)

Each description and map filed under subsection (2) of this section shall be submitted to the Department of Revenue and approved or disapproved within 30 days of receipt.

(7)

Within five days of its determination, the Department of Revenue shall provide notice of its approval or disapproval under subsection (6) of this section to each county assessor with whom a filing has been made and to the filing body. If the description or map is disapproved, the department shall explain what steps must be taken to correct the description or map, and shall cooperate with the filing body in helping it meet the requirements of this section, and whenever possible, the filing deadline of March 31. Corrected descriptions and maps must then be resubmitted to the department, and approved, and filed with the assessor or assessors.

(8)

The filing of the description and map under this section is for assessment and taxation purposes only and does not affect or relate to filing for any other purpose. [Amended by 1965 c.411 §1; 1969 c.151 §1; 1973 c.501 §1; 1975 c.595 §1; 1981 c.804 §38; 1983 c.426 §1; 1991 c.459 §94; 1997 c.541 §157; 2001 c.246 §11; 2001 c.553 §8; 2010 c.29 §1; 2011 c.204 §1]

Source: Section 308.225 — Boundary changes; procedure, https://www.­oregonlegislature.­gov/bills_laws/ors/ors308.­html (accessed May 26, 2025).

Notes of Decisions

Department of Revenue lacks authority under this section to review or analyze authority of local government to file boundary changes and is limited to review of legal descriptions and maps of boundary changes. State ex rel City of Happy Valley v. Dept. of Rev., 23 OTR 193 (2018)

Attorney General Opinions

Indication by county assessor of annexation of property to city on assessment roll while decision pending before Land Use Board of Appeals, (1980) Vol 41, p 99; “finality” of boundary change for purposes of property taxation if annexation is challenged in the courts, (1987) Vol 45, p 203

308.005
“Assessor” includes deputy 308.007
Definitions 308.010
Registered appraiser requirements 308.015
Alternate qualifications for registered appraisers 308.030
Penalty for failure to file certain statements within time limits 308.050
Assessor’s annual report on property appraisal program 308.055
Special assessor appointed if assessor fails to act 308.057
Continuing education of county assessors required 308.059
Qualifications of managerial employees of assessor 308.062
Action by department when appraisals not being conducted as provided by law 308.065
Administering of oaths by assessors and deputies 308.105
Personal property 308.115
Minerals, coal, oil, gas or other severable interests owned separately from realty not subject to tax 308.120
Partnership property 308.125
Undivided interest 308.130
Undivided estate of decedent 308.135
Trustee or personal representative separately assessed 308.142
“Property” and “property tax account” defined 308.146
Determination of maximum assessed value and assessed value 308.149
Definitions for ORS 308.149 to 308.166 308.151
Certain cities authorized to define “area” as city by ordinance or resolution 308.153
New property and new improvements to property 308.156
Subdivision or partition 308.159
Lot line adjustments 308.162
Property tax account modifications 308.166
Ordering provisions when property is subject to multiple special determinations of value 308.205
Real market value defined 308.207
Computation of real market value for taxing or bonding limitations 308.210
Assessing property 308.212
Requirement for property owner to file address 308.215
Contents of assessment roll 308.217
Form of assessment and tax rolls 308.219
Assessment and tax rolls 308.225
Boundary changes 308.231
Only registered appraisers to appraise real property 308.232
Property to be valued at 100 percent real market value and assessed at assessed value 308.233
Use of sales data for physical appraisal 308.234
Record of last appraisal 308.235
Valuation of real property 308.236
Land values to reflect presence of roads 308.240
Description of real property 308.242
Assessor’s authority to change roll after September 25 limited 308.245
Maps 308.250
Valuation and assessment of personal property 308.256
Assessment, taxation and exemption of watercraft and materials of shipyards, ship repair facilities and offshore drilling rigs 308.260
Watercraft used for reduction or processing of deep-sea fish 308.270
Public lands sold or contracted to be sold to be placed on assessment roll 308.275
Use of reproduction cost or prices and costs in determining assessed values 308.285
Requiring taxpayer to furnish list of taxable property 308.290
Returns 308.295
Penalties for failure to file real property or combined return on time 308.296
Penalty for failure to file return reporting only personal property 308.297
Personal property returns to note penalty for delinquency 308.300
Penalty for neglecting to file real property or combined return with intent to evade taxation 308.302
Disposition of penalties 308.310
When list of persons issued electrical permits supplied 308.316
Examining witnesses, books and records 308.320
Oath of assessor upon completion of assessment roll 308.330
Duty of assessor to assess properly 308.335
Department testing work of county assessors 308.408
“Industrial plant” defined 308.411
Appraisal and real market valuation of industrial plants 308.412
Effect of election to exclude income approach to value under prior law 308.413
Confidential information furnished under ORS 308.411 308.425
Proration of taxes after destruction or damage 308.440
Relief not allowed in case of arson by property owner 308.450
Definitions for ORS 308.450 to 308.481 308.453
Policy 308.456
Application of ORS 308.450 to 308.481 308.457
Determining boundaries of distressed areas 308.459
Valuation of rehabilitated property not to be increased 308.462
Qualifications for limited assessment 308.466
Processing applications for limited assessment 308.468
Fee for limited assessment applications 308.471
Owner to file statement with governing body when rehabilitation project finished 308.474
Owner to file annual statement regarding rental property transactions if agreement filed under ORS 308.462 (2) 308.477
Termination of limited assessment for incomplete construction or noncompliance 308.479
Termination of limited assessment for change of use 308.481
Extending deadline for completion of rehabilitation project 308.490
Determining value of homes for elderly persons 308.505
Definitions for ORS 308.505 to 308.674 308.510
Real and personal property classified for ORS 308.505 to 308.674 308.515
Department to make annual assessment of designated utilities and companies 308.516
Certain exceptions to ORS 308.515 308.517
To whom property assessed 308.518
Legislative intention with respect to ownership or operation of data centers 308.519
Local assessment of data center property 308.521
Property of cooperative providing steam or hot water heat by combustion of biomass exempt 308.524
Companies to file statements 308.525
Contents of statement 308.530
Company not relieved from making other reports 308.535
Extension of time for making reports or statements 308.540
Department to prepare assessment roll 308.545
Mode of valuing property 308.550
Valuing property of company operating both within and without state 308.555
Unit valuation of property 308.558
Taxation of aircraft 308.560
Assessment roll 308.565
Apportionment of assessment among counties 308.570
Determining value per mile of main and branch lines of companies using rail lines 308.575
Determining value per mile of property of companies using wire, pipe or pole lines or operational routes 308.580
Department to review and correct tentative assessment roll 308.582
Notice of tentative assessment 308.584
Request for conference to modify tentative assessment 308.585
Delivery of tentative assessment roll to director 308.590
Review and correction of tentative assessment roll 308.595
Notice when valuation increased or omitted property placed on tentative assessment roll 308.600
Director’s examination of rolls 308.605
Entry of corrections and changes 308.610
Oath of director upon completion of review 308.615
Keeping roll as public record 308.621
When assessment complete 308.624
Correction of certified roll 308.628
Omitted property subject to assessment 308.632
Notice of intention to add omitted property to assessment roll 308.636
Correction of assessment roll to reflect omitted property 308.640
Assessment and taxation of personal property of small private railcar companies 308.645
Reports by companies of mileage to county assessors 308.650
Companies to maintain principal office and agent within state 308.655
Rules and regulations 308.665
Railroad car exemption 308.671
Elective exemption of certain communication-related property 308.674
Exemption equal to difference between real market value of company’s centrally assessable property and 130 percent of cost of company’s centrally assessable real and tangible personal property 308.701
Definitions for ORS 308.701 to 308.724 308.704
Option of owner to choose special assessment 308.707
Valuation of multiunit rental property subject to special assessment 308.709
Application procedure 308.712
Methods to determine specially assessed value 308.714
Disqualification 308.723
Application of property tax expenditure funding 308.724
Rules 308.805
Mutual and cooperative electric distribution systems subject to tax on gross earnings 308.807
Amount of tax 308.810
Association to file statement 308.815
Examination of return by department 308.820
Tax as a lien 308.865
Notice and payment of taxes before movement of mobile modular unit 308.866
Definition of “mobile modular unit” 308.875
Manufactured structures classified as real or personal property 308.880
Travel or special use trailer eligible for ad valorem taxation upon application of owner 308.885
Determination of real market value of manufactured structure without physical appraisal 308.990
Penalties

Current through early 2026

§ 308.225. Boundary changes's source at oregon​.gov