Nutmeg Insurance Company, part of The Hartford, has filed a rate revision for its Commercial Auto program in Idaho, with proposed changes effective March 1, 2026, for both new and renewal business.

The filing requests an average 9% premium increase, compared to an indicated need of 17.4%. The change is expected to generate approximately $73,790 in additional written premium across 136 policyholders, bringing total written premium for the program to about $820,000. Individual policy impacts are expected to range from +3.4% to +12.4%.

In addition to revising base rates, the filing replaces the company’s Idaho commercial auto manual pages, updating multiple rating components. Changes affect vehicle count factors, vehicle age and type relativities, mileage-based adjustments, claim frequency factors, territory relativities, and operational credits such as paid-in-full discounts, safety program discounts, multi-line account credits, and anti-theft incentives.

The filing was submitted on a use-and-file basis and follows a prior 10% rate revision that took effect in March 2025, reflecting ongoing loss pressure and continued rate adequacy actions in the commercial auto segment.