Los Angeles County Office of the Assessor Forms and Documents
The Los Angeles County Office of the Assessor is a county assessor’s office, a local government office focused broadly on property assessment.
Forms listed here cover property-tax exemptions, ownership changes and transfers of assessed value, along with assessment requests and business property statements. The collection also includes specialized reports and schedules for property such as aircraft, vessels, and oil and gas.
Los Angeles County Office of the Assessor forms
- RP-87 · CA-LACOOA · Los Angeles CountyForm RP-87, Decline-in-Value Application – Los Angeles County, CA
Form RP-87 is the Decline-in-Value Application of the Los Angeles County Office of the Assessor, used to request a temporary reduction in assessed value. Fill out the form online on FillingPDF and download or print the completed PDF.
1 page - RP-87-Spanish · CA-LACOOA · Los Angeles CountyForm RP-87-Spanish, Decline-in-Value Application Spanish – Los Angeles County, CA
Form RP-87-Spanish is the Spanish-language Decline-in-Value Application of the Los Angeles County Office of the Assessor, used to request a temporary reduction of assessed value for 2026. Fill it out online and download or print the PDF.
1 page - RP-961 · CA-LACOOA · Los Angeles CountyForm RP-961, Supplementary Code Allocation Appraisal Report – Los Angeles County, CA
Form RP-961, Supplementary Code Allocation Appraisal Report, is a Los Angeles County Office of the Assessor form for reporting pipeline changes, water plant changes, services, meters and fire hydrants. Fill it out online on FillingPDF and download the PDF.
2 pages - RP-962 · CA-LACOOA · Los Angeles CountyForm RP-962, Utility Water Company Property Statement – Los Angeles County, CA
Form RP-962, the Utility Water Company Property Statement, is the annual report water utilities file with the Los Angeles County Office of the Assessor. Fill it out online and download or print the completed PDF.
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About the Los Angeles County Office of the Assessor
The collection reflects several distinct property-tax topics. Exemption claims include forms for homeowners, veterans, religious organizations, schools, and qualifying housing. Some housing-related documents are supplemental affidavits or income worksheets, while others are initial or annual exemption claims; they serve different purposes and should not be treated as interchangeable.
Other forms address ownership changes and changes in assessed value. The catalog includes ownership statements for real property and oil and gas property, as well as claims involving transfers of a base-year value to a replacement residence. Separate applications concern assessment exclusions for certain types of new construction, and a decline-in-value application addresses a different assessment question. The titles indicate the topics, but do not establish which form applies to an individual property or situation.
The business and specialized property documents include property statements, reports, and supplemental schedules for areas such as aircraft, vessels, utilities, oil and gas, and industry-specific business property. These forms are distinct from homeowner exemption and ownership-change documents. The forms currently listed on this page are a selection of published forms associated with the Los Angeles County Office of the Assessor, not necessarily every document the office issues. Check the issuing agency’s current instructions for applicable versions, eligibility, supporting documents, deadlines, and submission methods.