Declines in Value Resources

The following resources provide information and guidance on the Declines in Value Survey Topic.

California Constitution

California Constitution
Citation Title
Article XIII A, §2 Tax Limitation

Revenue and Taxation Code

Revenue and Taxation Code
Section Title
50-53 Base Year Values
601-623 Assessment Roll
1601-1616 Equalization by County Board of Equalization Generally
4831-4842 Corrections Generally

Property Tax Rules

The BOE is mandated to prescribe rules and regulations to govern local boards of equalization when equalizing and Assessors when assessing in compliance with the rulemaking procedures adopted by the California Office of Administrative Law. Pursuant to that mandate, the BOE has adopted various Property Tax Rules which are contained in Title 18 of the California Code of Regulations.

The following Property Tax Rules pertain to declines in value.

Rule Title
461 Real Property Value Changes
474 Petroleum Refining Properties (in effect October 1, 2015)

Letters To Assessors (LTAs)

LTAs provide an ongoing advisory service for Assessors and other interested parties. The letters present BOE staff's interpretation of rules, laws, and court decisions on property tax assessment.

The following LTAs pertain to procedural issues involving declines in value.

Letter to Assessor Title
79/39 Real Property Value Changes
79/59 Effect of Proposition 8 Upon Machinery and Equipment Valuation
79/143 Effect of Assembly Bill 1488 Upon Fixtures and Machinery and Equipment Classified as Improvements
81/19 Recent Judicial Decisions
82/25 The Consumer Price Index and Property Having Stagnant or Declining Value
86/36 Declines in Values on First Lien Date (Proposition 8)
92/24 Declines in Value
92/63 Declines in Value Assessment Uniformity
93/71 Declines in Value: Notification of Amount of Assessment
95/54 Assessment Appeals and Roll Corrections
96/52 Chapter 491 (SB 821), Chapter 497 (SB 722), Chapter 527 (SB 716), Statutes of 1995
2004/060 County of Orange v. Renee M. Bezaire
2009/024 Decline in Value: Excluded New Construction
2009/038 Errors in Assessed Values Established Under Proposition 8
2011/051 Decline in Value Roll Corrections: Floating Homes and Manufactured Homes
2012/053 Guidelines for Active Solar Energy Systems New Construction Exclusion
2014/023 Guidance Regarding Taxable Possessory Interests Property Taxable Rule 21(d), Term of Possession for Valuation Purposes
2024/031 Active Solar Energy System New Construction Exclusion: Clarification of Sunset Date Extension

Annotated legal opinions are summaries of the conclusions reached in selected legal rulings of California State Board of Equalization counsel.

The following legal opinions pertain to questions involving declines in value.

Annotated Legal Opinion Title
170.0090 Stagnant or Declining Values
850.0015 Decline in Value
850.0016 Decline in Value
850.0017 Decline in Value
850.0018 Decline in Value
850.0019 Decline in Value
850.0020 Decline in Value
850.0030 Lesser of Market Value or Factored Value
850.0031 Lesser of Market Value or Factored Value
850.0045 Notice
850.0080 Taxable Value Less than Trended Base Year Value

California Consumer Price Index

Current and prior year inflation factors are available on the LTA webpage. Select the appropriate year and search for the California Consumer Price Index LTA or use the Topical Index to search by topic.