US Property/Casualty Mutual Insurers Double Net Income in 2025 Following Strategic Adjustments
United States property and casualty mutual insurance companies experienced a significant financial turnaround in 2025, with total net income doubling compared to the previous year. According to a research report published by rating agency AM Best, the segment generated approximately $42.6 billion in net income for 2025, a dramatic recovery from the results recorded in 2024.
A primary driver of this financial improvement was a substantial surge in underwriting income. AM Best reported that underwriting income leaped to approximately $14.8 billion in 2025, rebounding strongly from an underwriting loss of $7.2 billion in 2024. Industry analysts attribute this positive shift to proactive measures taken by mutual carriers, reciprocal exchanges, and insurance cooperatives in years leading up to 2025.
Justin Aimone, a financial analyst at AM Best, noted that mutual carriers began filing for significant rate increases, restructuring discounts, and raising deductibles ahead of 2025. These decisive underwriting actions successfully bolstered overall revenue. Furthermore, rate adequacy and the capability of mutual carriers to properly price risks benefited notably from advances in data analytics, enhanced technology, and modern risk modeling.
The strategic adjustments were implemented largely to combat rising frequencies and severities associated with secondary perils, including convective storms, wildfires, and flooding. Records show that 2025 experienced 23 separate economic events resulting in losses of at least $1 billion each. Although the year ranked as the third highest on record for billion-dollar weather disasters, the absence of large-scale hurricane losses during a relatively benign season allowed insurers to achieve favorable financial results without catastrophic tropical storm disruptions.
Financial metrics within the segment showed broad improvement over the twelve-month period. Loss and loss adjustment expenses experienced a modest decline of 2%, even as underwriting expenses increased by 5.8% compared to 2024 figures. These shifts suggest that collected premiums have successfully caught up with the escalating cost of claims across the sector.
Net premiums written across the mutual insurance segment increased by approximately 5% to reach $364.1 billion in 2025. This growth rate reflects a return to historical pre-pandemic averages, following a period of steeper rate hikes. Accompanying this revenue growth, the segment’s combined ratio improved significantly, dropping to 95.2 in 2025 compared to 101.2 in 2024 and 110.4 in 2023. For context, the average combined ratio over the preceding five-year period stood at 104.
Market concentration within the mutual segment remained stable throughout the year. The list of top-performing mutual insurers saw minimal movement, with the top 25 carriers accounting for more than 83% of total net premiums written within the entire mutual insurance category.
Source: Insurance Journal
