The combined expense and profit margins of the five largest US property insurance carriers reveal a market where scale, line selection, and regional focus deliver markedly different outcomes.
Drawing on the Property & Casualty Financial Insights dashboard, this article examines where the leading firms have achieved the greatest efficiency and profit, and what this means for carriers seeking to benchmark their own performance or identify more competitive markets for entry.
The data, which covers the top five carriers by market share and their leading lines of business, show that expense ratios and profit outcomes vary significantly, even among the largest players. The dashboard enables carriers to dissect these differences by line of business and state, providing a practical tool for strategic planning and competitive analysis.

Progressive reported the highest overall profit among the top five, with $13.9 billion in profit and an expense ratio of 70.5%. Berkshire Hathaway followed with $9.2 billion in profit and a 73.4% expense ratio. State Farm, despite earning the most premium ($99.3 billion), posted a lower profit of $8.4 billion, reflecting a higher expense ratio of 91.5%. Liberty Mutual and Allstate Insurance rounded out the group, with profits of $7.2 billion and $6.1 billion, and expense ratios of 79.3% and 80.0%, respectively.
These figures highlight the importance of expense management and business mix. Progressive’s focus on Private Passenger Auto (where it derives 75.7% of its premium) has enabled it to maintain a leaner cost structure than State Farm. While dominant in both auto and homeowners, State Farm faces higher overall expenses relative to premium.

Across the top five carriers, Private Passenger Auto accounted for an average of 58.6% of premium, making it by far the largest single line. Homeowners Multiple Peril was the next largest, averaging 15.7% of premium share, followed by Commercial Auto at 3.9%. This concentration reflects both consumer demand and the competitive intensity of these segments, where scale and claims management are critical to profitability.
Regionally: Florida, California, and Texas emerged as the most active states for the top carriers, appearing most frequently among their three largest state markets by premium earned. This regional focus underscores the need for carriers to understand local market dynamics, regulatory environments, and catastrophe exposures.
Benchmark your own expense ratios and profit margins against those of the top five carriers, using the Property & Casualty Financial Insights dashboard for detailed breakdowns by line and state.
This analysis is based on reported premium, expense, and profit data for the top five US property insurance carriers, as captured in the latest dashboard release. All figures are sourced directly from the Property & Casualty Financial Insights dashboard.