The Federal Insurance Office (FIO) released its second comprehensive study on personal auto insurance markets on January 17, 2025. This report examines how market conditions, technological advancements, and regulatory frameworks have evolved since FIO’s 2017 analysis.
Personal auto generates 35% of all P&C Premiums
Personal auto insurance remains the largest segment of the U.S. property and casualty (P&C) market, generating $318 billion in premiums in 2023. Auto insurance accounted for 35.8% of total P&C premiums, reinforcing its critical role in industry profitability and consumer affordability.
Increased Loss Severity, Decreased Loss Frequency but Combined Ratio over 100 the Norm
The report documents substantial changes in loss patterns between 2015 and 2022. Loss severity rose from $5,127 to $6,182, reflecting higher repair costs and medical expenses. Loss frequency declined from 6.07 to 4.57 accidents per 100 exposures, potentially due to improved vehicle safety technology and changing driving patterns.
Financial performance metrics indicate persistent underwriting challenges across the sector. The report underscores long-term underwriting volatility, with personal auto insurers achieving combined ratios under 100 in only three of the past 14 years (2009–2022). Notably, underwriting losses—not expenses—were the primary driver of profitability challenges. Despite improved operational efficiency, insurers continue to face heightened claims costs.
The Report’s Key Findings:
- Premiums for Financial Responsibility (FR) Limits policies increased by 32.2% between 2015 and 2022.
- Market stability in FR Limits policies remained steady, representing 16.5%–18.1% of the auto insurance market.
- Significant variations in Premium-to-Income ratios across demographic segments
- Accelerating the adoption of telematics and usage-based insurance programs
- Growing regulatory focus on proxy factors in underwriting decisions
- Emergence of AI governance frameworks across 19 states
The Report’s Take on Underwriting Proxy Factors
The report examines the complex debate over proxy factors in auto insurance underwriting. Some state regulators question or prohibit using credit scores, education levels, and occupation in rating decisions. The report notes that the NAIC acknowledges a regulator’s authority to reject actuarially supported factors that conflict with public policy objectives.
Affordability and Premium-to-Income Ratios
The report also has an analysis of the disparities in Premium-to-Income (P/I) ratios across different demographic segments, using s ZIP code-level income data to assess insurance affordability.
By the FIO’s calculation, 33.1 million residents live in ZIP codes where auto insurance premiums exceed 1.5% of the median household income. This population decreases to 16.5 million residents in ZIP codes, exceeding where auto premiums exceed 2% of income and drops further to 4.5 million residents with auto premiums costing more than 3% of their income. These findings identify potential insurance affordability issues in traditionally underserved communities and regions with higher proportions of low- and moderate-income residents. According to the report, a Premium-to-Income ratio analysis provides regulators and industry stakeholders with quantifiable metrics to assess insurance accessibility and market dynamics across demographic segments.
Regulation of Artificial Intelligence
The integration of artificial intelligence marks a fundamental shift in core insurance operations. 88% of surveyed insurers report using or planning to implement artificial intelligence (AI) in underwriting and claims handling.. According to the report, this technological transformation will create regulatory challenges and operational risks requiring new governance frameworks.
Regulatory oversight is evolving, with 19 states adopting, as of December 1, 2024, the NAIC’s December 2023 Model Bulletin on the Use of Artificial Intelligence Systems by Insurers. The report characterizes this bulletin as a regulatory response to increasing AI adoption in insurance operations.
The model bulletin establishes comprehensive governance requirements for insurers’ AI systems throughout their lifecycle – from design and development through validation, implementation, monitoring, and eventual retirement. However, the report mentions that four additional states have adopted “specific regulation or guidance” without detailing how these regulatory frameworks differ from the model NAIC bulletin. The FIO warns that state-by-state regulatory variations may create compliance challenges for national insurers.
Telematics
The report identifies the increasing role of telematics and UBI programs in risk assessment. Adoption rates are rising, but privacy concerns and regulatory scrutiny remain significant barriers.
The report highlights specific risks in telematics programs, including location tracking and data retention. Consumer adoption barriers include technological accessibility and privacy protection requirements.
The report documents the increasing importance of telematics and usage-based insurance in rate development. These programs directly measure driving behavior but raise questions about fairness and accessibility. The FIO report cautions that socioeconomic factors may influence telematics adoption, raising potential fairness and accessibility concerns.
Loss Trends and Rating Factors
The FIO’s investigation reveals complex interactions between loss trends and rating factors. Loss severity increases correlate with vehicle technology advancement and repair cost inflation. The report suggests these trends may accelerate with autonomous vehicle adoption and advanced safety systems.
State regulatory responses show significant variation in approach and implementation. While many states adopted the NAIC Model Bulletin on AI systems, others have implemented and maintained independent AI regulatory frameworks, and approximately twenty-seven states, as of the date of the report, had no AI regulatory guidelines in place.
The Report’s Recommendations
While the report indicates an increasing regulatory focus on algorithmic fairness and transparency requirements, FIO’s recommendations emphasize enhanced monitoring of costs, accident reduction initiatives, and proxy factor analysis. The implementation timelines in the report extend through 2029, focusing on safety technology integration and compliance frameworks. These recommendations suggest continued evolution in industry practices and regulatory oversight.
Access to the Full FIO Report
The 41-page FIO report, “Report on Personal Auto Insurance Markets and Technological Change,” released on January 17, 2025, is available at https://home.treasury.gov/system/files/311/Report%20on%20Personal%20Auto%20Insurance%20Markets%20and%20Technological%20Change.pdf. The report includes detailed appendices with state-specific regulations and market data.
