定義
Self-insurance is the deliberate decision to retain a financial risk internally — absorbing potential losses from one's own resources — rather than transferring that risk to a commercial insurer.
Self-insurance is not simply the absence of insurance; it is a conscious risk management posture. A family or business identifies a category of potential loss, concludes that purchasing commercial coverage is uneconomical or unnecessary given their financial strength, and sets aside resources — formally or informally — to cover losses if they occur. At high wealth levels, self-insuring certain routine or bounded risks can be rational: paying commercial premiums for losses a family could easily absorb may represent a poor expected-value trade. The topic connects naturally to broader risk budgeting and capital preservation frameworks families use to think about downside scenarios.
Self-insurance exists on a spectrum. At its most informal, it simply means going without coverage and accepting the risk. More structured approaches involve formal reserve funds, sometimes held in a dedicated account or entity, earmarked for specific categories of loss. A captive insurer is one formalized version of self-insurance that introduces regulatory structure and potential tax benefits.
The central danger of self-insurance is underestimating the size, frequency, or correlation of retained risks. A hypothetical family that self-insures its art collection, several properties, and a fleet of vehicles may believe each individual risk is manageable — until a single catastrophic event, such as a fire, triggers simultaneous losses across multiple categories. Families considering self-insurance for any material risk should work with a qualified risk management professional to model potential loss scenarios honestly before reducing or eliminating coverage.
最終レビュー日 August 25, 2026 · 編集方針
