Basis of Presentation

12 Months Ended

Dec. 31, 2025

Basis of Presentation

Basis of Presentation

1. Basis of Presentation

The consolidated financial statements have been prepared on the basis of accounting principles generally accepted in the United States of America (“GAAP”). The consolidated financial statements include Safety Insurance Group, Inc. and its subsidiaries (the “Company”). The subsidiaries consist of Safety Insurance Company, Safety Indemnity Insurance Company, Safety Property and Casualty Insurance Company, Safety Northeast Insurance Company, Safety Northeast Insurance Agency, Inc. (“SNIA”), and Safety Management Corporation (“SMC”), which is SNIA’s holding company.

The Company was incorporated on June 25, 2001 in the State of Delaware. On October 16, 2001, the Company acquired all of the issued and outstanding common stock of Thomas Black Corporation (“TBC”) and its property and casualty subsidiaries. TBC subsequently merged with and into Safety Insurance Group, Inc. with Safety Insurance Group, Inc. being the corporation surviving the merger.

The Company is a leading provider of property and casualty insurance in Massachusetts, New Hampshire and Maine. The Company’s principal product line is private passenger automobile insurance, which accounted for 54.9% of its direct written premiums in 2025. The Company primarily operates through its insurance company subsidiaries, Safety Insurance Company, Safety Indemnity Insurance Company, Safety Property and Casualty Insurance Company, and Safety Northeast Insurance Company (together referred to as the “Insurance Subsidiaries”).

SNIA provides personal and commercial property and casualty insurance products to customers on behalf of the Insurance Subsidiaries and third-party insurance carriers. All intercompany commission transactions, including commission income and underwriting, operating and related expenses, have been eliminated. Eliminated commission income totaled $1,122 and $1,069 for the years ended December 31, 2025 and 2024, respectively. As of December 31, 2025, fiduciary assets held by SNIA were immaterial and less than $275.

Since 1998, the Company had been a member of the Massachusetts Property Insurance Underwriting Association (“FAIR Plan”). The FAIR Plan was a residual market insurance association in which all companies writing basic property insurance in the Commonwealth of Massachusetts were required to participate, with profits and losses shared among member companies on a written premium basis. On April 1, 2024, the Massachusetts Division of Insurance approved a restructuring of the FAIR Plan (“FAIR Plan Restructuring”), transforming it from a partnership that shares profit and losses with member companies to a stand-alone, risk bearing entity, and distributing the accumulated members’ equity. As a result of the FAIR Plan Restructuring, the Company recognized an underwriting gain through the release of prior year loss reserves, (“FAIR Plan Development”) and established a new invested asset, (“Investment in FAIR Plan Trust”).