Triple-I: US Personal Auto Insurance Industry Generates Profitable Underwriting Result but Faces Headwinds Due to Legal System Abuse, Regulatory Environment

Business Wire

MALVERN, Pa.--(BUSINESS WIRE)--
The United States personal auto insurance industry achieved its strongest underwriting performance in the post-pandemic era, recording a net combined ratio of 95.3 in 2024, but continues to face headwinds due to escalating legal system abuse and a challenging regulatory environment, according to a new Issues Brief published today by the Insurance Information Institute (Triple-I).

“While the improved 2024 underwriting performance is encouraging, we remain focused on several challenges facing the personal auto insurance industry,” said Triple-I CEO Sean Kevelighan. “The growing impacts of legal system abuse, driven by the exploitive tactics of billboard attorneys, combined with an increasingly complex regulatory environment, will continue to put pressure on the market. It’s essential for auto insurers to continue managing these evolving risks effectively to sustain profitable growth.”

Key Performance Highlights

Triple-I’s Issues Brief showed the personal auto insurance sector’s improvement across multiple metrics in 2024:

Premium Growth: The industry maintained robust growth momentum with a net written premium increase of 12.8% in 2024, following 14.4% growth in 2023. This marks two consecutive years of double-digit premium growth, outpacing the broader U.S. property/casualty (P/C) industry for the second consecutive year.

Loss Performance: Direct incurred loss ratios improved dramatically, falling 21.7 percentage points from a peak of 86% in Q4 2022 to 64% by the end of 2024. This substantial improvement reflects the industry's successful efforts to align pricing with risk and implement effective loss control measures.

Historical Context: The personal auto line has outperformed the net combined ratio of the overall U.S. P/C industry in 10 of the past 20 years since 2005.

Ongoing Challenges and Emerging Risks

Despite 2024’s improved financial performance, the industry continues to face significant headwinds which could impact future results:

Legal System Abuse: Increased billboard attorney involvement in claims and larger jury awards drove auto liability losses and defense and cost containment expenses up by a range of $76.3 billion to $81.3 billion from 2014 to 2023, according to a 2024 Triple-I/Casualty Actuarial Society study.

Regulatory Environment: State regulatory processes have become increasingly challenging, with approval timeframes for rate filings growing 40% longer from 2010 to 2023. Additionally, the percentage of filings receiving less rate impact than requested by carriers has increased by 10 percentage points, potentially limiting market availability and competitive pricing.

Frequency vs. Severity Trends: While claim frequency remains below pre-pandemic levels, severity continues to rise year-over-year, with pure premium trends increasing cumulatively by 25.0 points from 2019 to 2024.

About the Insurance Information Institute (Triple-I)

Since 1960, the Insurance Information Institute (Triple-I) has been the trusted voice of risk and insurance, delivering unique, data-driven insights to educate, elevate and connect consumers, industry professionals, policymakers and the media. An affiliate of The Institutes, Triple-I represents a diverse membership accounting for nearly 50% of all U.S. property/casualty premiums written. Our members include mutual and stock companies, personal and commercial lines, primary insurers and reinsurers – serving regional, national and global markets.

About The Institutes

The Institutes® are a not-for-profit comprised of diverse affiliates that educate, elevate, and connect people in the essential disciplines of risk management and insurance. Through products and services offered by The Institutes and nearly 20 affiliated business units, people and organizations are empowered to help those in need with a focus on understanding, predicting, and preventing losses to create a more resilient world.