Commercial auto insurance has posted an underwriting loss for 14 consecutive years. In 2024 alone, the segment lost $4.9 billion, nearly double the 11-year annual average of $2.9 billion, according to AM Best’s market segment report. If your business operates any vehicle, commercial auto is the line that deserves the most attention at your next renewal.
The structural forces driving these losses are not easing. Claim severity has increased 64% since 2015, according to SambaSafety’s 2026 Driver Risk Report. Thermonuclear verdicts, meaning jury awards exceeding $100 million, rose 81% in a single year. AM Best projects the industry remains under-reserved by $4 billion to $5 billion, which means carriers will continue tightening underwriting standards and requiring more documentation from fleet accounts through 2026 and beyond.
What Is Driving the Severity Problem
Three forces have converged to make commercial auto the most structurally challenged line in property and casualty insurance.
Social inflation. Plaintiff attorneys are securing larger awards than at any prior point in history, particularly in commercial auto cases where a vehicle branded with a company name can invite the assumption of deep pockets. Third-party litigation funding, where outside investors finance lawsuits in exchange for a portion of the settlement, has extended the duration and scale of these cases. The gap between what carriers expected to pay on claims from prior years and what they are actually paying continues to widen.
Vehicle technology. Modern trucks and vans are far more expensive to repair than their predecessors. Advanced sensors, cameras, and electronics can turn even minor collision damage into five-figure repair bills. Cycle times have also extended as shops wait for specialized parts, driving up rental reimbursement costs on top of repair costs.
Driver behavior. Distracted driving violations are up 31% over two years, according to SambaSafety, and phone use increases crash likelihood by 240%. Speeding accounts for 36.5% of all major violations. Insurers are watching these behavioral indicators closely, and fleet accounts that cannot demonstrate active driver monitoring are being penalized at renewal.

What Carriers Now Expect as a Baseline
Carriers have moved beyond price increases as their primary lever. Underwriters are now making decisions based on the quality of a fleet’s risk management program, not just its loss history. Accounts that cannot demonstrate the following are facing either significant rate increases, reduced limits, or market restrictions:
Driver qualification standards. Carriers want to see written hiring criteria, MVR review processes, and policies that define what violations disqualify a driver from operating company vehicles. Continuous monitoring programs, not annual MVR pulls, are increasingly expected as baseline documentation.
Telematics data. GPS and behavior-based monitoring have become standard underwriting inputs. Fleets using telematics and sharing that data with their broker gain a measurable pricing advantage. Those that cannot produce it are assigned to a less favorable risk tier.
Safety training records. Carriers want evidence that drivers receive training after violations or accidents, not just at hire. Organizations combining continuous monitoring with targeted coaching have achieved a 77% reduction in violations within 12 months and a 22% reduction in claims frequency, according to SambaSafety’s data. Underwriters are aware of these outcomes and are asking for them.
How to Build the Strongest Possible Renewal Submission
Winning renewal outcomes in the current commercial auto market require preparation, not negotiation. The accounts receiving the most favorable treatment are those that present documentation proactively, before the underwriter asks for it.
Start with a loss run narrative. Every loss deserves a brief explanation: what happened, what changed operationally as a result, and what controls are now in place. Underwriters reading a raw loss run without context assume the worst.
Quantify your safety investment. If you use telematics, produce a summary of your violation reduction trends. If you have a formal return-to-work program, document it. If you have a written fleet safety policy, include it. This documentation shifts the conversation from “how bad is your loss history” to “how well-managed is your fleet.”
Review your limits before renewal, not during it. Umbrella and excess layers that attach above commercial auto have seen premium increases of 8% to 15%, driven directly by thermonuclear verdict exposure. Many businesses are operating with attachment points and limits that were set five or more years ago and have not kept pace with current verdict trends.
The commercial insurance team at Tooher-Ferraris works with fleet accounts to build renewal submissions that document risk management quality, not just loss history. Learn more about our approach to commercial insurance and fleet risk at https://toofer.com/commercial-insurance/.
For additional data on commercial auto market conditions, the SambaSafety 2026 Driver Risk Report is available at sambasafety.com and AM Best’s market segment report, “Stuck in Reverse,” provides the underlying loss data.

Frequently Asked Questions
Why has commercial auto insurance been unprofitable for 14 consecutive years?
Claim severity has grown at roughly 8% annually since 2015, more than double the rate of economic inflation. Rate increases have not kept pace with severity trends, and adverse reserve development continues to compound prior-year losses. Social inflation, rising repair costs, and increasing nuclear verdict exposure are the primary structural drivers.
What do carriers look at when underwriting a commercial fleet?
Beyond loss history, underwriters now evaluate driver qualification standards, MVR monitoring frequency, telematics adoption, safety training records, and written fleet safety policies. Accounts with strong documentation in these areas receive more favorable terms than accounts with cleaner loss histories but no risk management infrastructure.
How should I approach my commercial auto renewal in 2026?
Begin preparing three to four months before renewal. Compile a loss run narrative with context for every claim, document your driver monitoring and training programs, review your liability limits and umbrella attachment points, and work with your broker to present a complete risk management story to underwriters.
Ready to build a stronger commercial auto renewal submission? The team at Tooher-Ferraris has been helping businesses protect their fleets since 1932. Contact us today to schedule a no-obligation consultation — https://toofer.com/contact-us/





