 The Assessor’s modernization project received national acknowledgement in an after-action analysis, as having played an instrumental role in helping thousands of homeowners’ secure property tax relief following the devastating 2025 wildfires.
A recent case study published by Government Technology, Trial by Fire, examined how the Office’s upgraded technology infrastructure performed during one of the most destructive natural disasters in Los Angeles County history. The report focused on the impact of the fires in Pacific Palisades and Altadena and how the modernized assessment system responded under extraordinary circumstances.
Faster Relief Through Modern Technology
According to the study, the Office used cloud-based infrastructure, data analytics, and AI-driven tools to reassess more than 18,000 properties in just 90 days. Under the previous legacy system, the same process would have taken 100 appraisers more than a year to complete.
The modernization effort began in 2014 with the goal of replacing the Office’s decades-old mainframe system with a cloud-based, digitized platform developed in partnership with Oracle. The transition was completed using an agile development strategy that allowed the existing system to remain fully operational throughout implementation.
As an example, the new system was built side-by-side with the existing one. As functionality was completed and verified, legacy components were systematically retired while maintaining uninterrupted service.
Long-Term Benefits Beyond Disaster Response
The case study concluded that the modernization project positioned the Office to respond with greater speed, accuracy, and transparency during times of crisis. It also highlighted the importance of strong data governance and collaboration between technical and operational teams.
Government Technology is a nationally recognized publication focused on innovation in state and local government and the evolving role of technology in public service.
To read Trial by Fire, visit Trial by Fire Case Study.
 Despite the devastating wildfires that impacted Pacific Palisades and Altadena and disrupted the regional real estate market, the May 15 Forecast for the 2026 Assessment Roll projects a 3.9 percent increase in taxable property values over 2025.
If finalized, this would represent the 16th consecutive year of growth for Los Angeles County’s Assessment Roll. The forecast serves as an important planning tool for local governments as they prepare budgets based on anticipated property tax revenues.
Wildfires Continue to Shape the Roll
The 2025 wildfires damaged more than 18,000 parcels, displaced families and significantly affected local housing conditions. In response, the Assessor’s Office has continued working to ensure that impacted property owners receive every assessment relief benefit available under the law, including Misfortune & Calamity assessment reductions, Decline-in-Value assessments, Tax Base Transfers, and rebuilding reassessment exclusions.
At the same time, the Office remains committed to the fair and equitable assessment of all taxable property throughout Los Angeles County.
Market Stability Supports Revenue Growth
Aside from the effects of the wildfires, the projected 2026 Assessment Roll increase reflects a relatively stable real estate market during 2025, with property transfers continuing to drive the largest share of Assessment Roll growth. Inflation adjustments under Proposition 13 and ongoing new construction activity also contributed significantly to projected values.
The forecasted Assessment Roll total of approximately $2.2 trillion is expected to generate roughly $27 billion in property tax revenue supporting public education, emergency response, healthcare, and other essential county services.
All assessments are based on property valuations as of January 1, 2026.
 The Los Angeles County Board of Supervisors has approved an update to the County’s ordinance for business personal property tax, raising the minimum threshold for reporting business property from $5,000 to $10,000.
The ordinance establishes the minimum combined value that a business’s equipment, fixtures, machinery, and furniture must have for those business personal property assets to be assessed and taxed. The previous threshold had remained unchanged for years despite rising administrative costs and changing economic conditions.
Reducing Burdens on Small Businesses
This measure is intended to reduce unnecessary burdens on small businesses while allowing the Office to focus resources more efficiently. An internal study found that processing a $5,000 business property account costs substantially more in staff time and administrative expense than the revenue it generates. The Office estimates that approximately 43,000 small businesses across Los Angeles County will benefit from the updated threshold.
Improving Efficiency Across the Office
The change, expected to reduce administrative requirements for many small businesses, will also enable the Assessor’s Office to redirect staff and resources toward higher-value assessments that more effectively support public services.
The updated threshold aligns with state law and will take effect for the 2027 tax year.
 Homeowner Alert Service – Guard Against Title Fraud
You can now sign up for a free service to receive a "Homeowner Alert" by email anytime a document, such as a grant deed, loan, or lien, is recorded on your property. When you sign up for an Assessor E-Service account and register your email address with your properties, we will notify you within 48 hours of any activity recorded on your property, which can be an important tool to address fraudulent deeds and other recordings.
Newsletter
The Assessor’s Office issues an informative monthly email newsletter with helpful tips and information that will benefit anyone who owns property in Los Angeles County. Subscribe to the Newsletter today.
|
