American Modern Property and Casualty Insurance Company has submitted a filing in Illinois to overhaul its Manufactured Home Program, proposing a significant rate and rule revision affecting 4,957 policyholders in the state.

The filing was submitted on March 4, 2026, with proposed effective dates of July 15, 2026 for new business and September 3, 2026 for renewals. The program currently represents about $6.5 million in written premium, and the company is seeking a $1.24 million premium increase, reflecting an overall rate impact of 19%.

American Modern’s actuarial analysis indicates a 21.2% rate need, with the filing introducing multiple structural changes to the rating plan. Proposed updates include revisions to base rates, age of home rating tables, and scaling factors used to price manufactured homes.

The filing also introduces deductible changes. The insurer plans to remove $250 to $750 deductible options for All Other Perils, automatically mapping affected policies to a $1,000 deductible at renewal. In addition, all policies will transition to a $2,500 Windstorm or Hail deductible, with new deductible options added for wind and hail coverage.

Because of the structural changes, the filing notes that the maximum potential impact on an individual policyholder could reach 152.9%.

The coverage is distributed through the company’s Manufactured Home Program, part of the Munich Re group’s specialty property offerings. The last rate revision for the program was an 8.4% increase implemented in November 2024.