US Insurers Post Best Year in a Decade, But Cracks Begin to Show

MALVERN, PA – January 22, 2026 – The U.S. property/casualty (P/C) insurance industry defied a year of economic jitters and geopolitical turmoil to post its most profitable underwriting year in over a decade, according to a new forward-looking analysis by the Insurance Information Institute (Triple-I) and consulting firm Milliman. A quiet Atlantic hurricane season and continued strength in key business lines helped the industry achieve its lowest net combined ratio in recent memory, a primary measure of insurer profitability.

However, this robust top-line performance masks significant underlying pressures. A deeper look into the sector reveals a widening chasm between profitable and struggling lines, slowing premium growth, and mounting concerns from economists about the industry's vulnerability to future shocks. While 2025 demonstrated remarkable resilience, the path forward in 2026 is fraught with increasing uncertainty.

A Tale of Two Markets: Profitability and Peril

The industry's overall success in 2025 was largely driven by exceptional performance in some segments and a major dose of luck from Mother Nature. A combined ratio below 100 indicates an underwriting profit, meaning insurers collected more in premiums than they paid out in claims and expenses. The forecast for 2025 suggests the industry will comfortably achieve this, a welcome result after years of battling inflation and catastrophe losses.

Workers’ compensation continues to be the industry’s star performer. Bolstered by disciplined risk management and favorable loss trends, the line is expected to maintain combined ratios in the high 80s to low 90s through 2027. “NCCI’s latest loss ratio trends continue to show declines,” noted Donna Glenn, chief actuary for the National Council on Compensation Insurance (NCCI), adding that the organization “does not anticipate any imminent reversal of current trends.”

This profitability stands in stark contrast to the persistent struggles in liability lines. General liability and commercial auto are the only major lines forecast to remain unprofitable, with combined ratios stubbornly staying above the 100-point threshold. General liability, in particular, is facing a crisis. “General Liability faces continued challenges,” stated Jason B. Kurtz, a principal and consulting actuary at Milliman. “Our 2025 Net Combined Ratio is forecast to be similar to 2024, among the worst in over a decade. Losses are high, with Q3 direct incurred loss ratios being the highest in at least 25 years.”

Analysts point to ongoing litigation pressures, social inflation, and significant reserve risk as key drivers of the poor performance in liability. Kurtz warned that while aggregate premiums have been growing, they are not keeping pace with soaring loss trends. “We anticipate additional premium growth will be needed to improve General Liability profitability,” he added. This sentiment is echoed by credit rating agencies like AM Best, which assigned a negative outlook to the general liability segment, signaling deep-seated concerns about its long-term health.

Personal Lines: A Picture of Moderation

For millions of American consumers, personal auto and homeowners insurance represent their primary interaction with the P/C industry. In 2025, these lines painted a mixed but generally stable picture.

The homeowners' segment demonstrated incredible fortitude. Despite absorbing massive losses from the devastating Los Angeles wildfires in the first quarter of 2025—an event some estimates suggest could be the costliest wildfire in U.S. history with insured losses potentially reaching $75 billion—the line’s net combined ratio is forecast at 99.6. This is on par with 2024, showing the sector’s capacity to withstand a major catastrophe, albeit with little room to spare for profitability.

Meanwhile, the personal auto market showed signs of both improvement and deceleration. After several years of aggressive rate hikes to combat soaring repair costs and claims severity, the 2025 net combined ratio is forecast to improve to a profitable 94.4. However, this hard-won profitability has come at a cost to growth. Net written premium growth is expected to have slowed to just 3.6%, its lowest level since 2020. This slowdown suggests that after years of pushing rates, the market may be reaching an affordability ceiling, forcing insurers to compete more intensely for market share.

A Fortunate Calm and Lingering Economic Storms

Much of the industry's good fortune in 2025 can be attributed to the weather. For the first time in a decade, no hurricane made landfall in the United States, providing a critical reprieve from the multi-billion-dollar losses that have plagued recent years. “We’re on track to achieve the lowest Net Combined Ratio in over a decade, thanks in part to a hurricane season that spared the U.S.,” said Patrick Schmid, chief insurance officer at Triple-I.

This calm, however, cannot be counted on, and economists are already pointing to new storms gathering on the economic horizon. The Triple-I/Milliman report highlights that the collection of reliable economic data was hampered by the U.S. government shutdown in the fourth quarter of 2025, creating data gaps that obscure the true economic picture. The available data points to slowing underlying growth for the P/C industry.

Michel Léonard, chief economist at Triple-I, issued a stark warning about the fragility of the broader economy. “A closer look at the data suggests the U.S. economy may be increasingly vulnerable to rising economic, political, and geopolitical uncertainty,” he stated. He cautioned that a rise in the unemployment rate toward the critical 5.0% mark in the coming months could trigger an economic contraction or even a recession.

Of more immediate concern to insurers, Léonard noted that “P/C replacement costs could still see significant increases in 2026, weighing on overall P/C performance.” Other analyses concur, projecting that replacement cost inflation will outpace the general consumer price index, putting renewed pressure on claims severity just as premium growth is beginning to slow.