Self-Insurance and Captive Insurance Programs

Self-Insurance Fundamentals

Large organizations often retain a portion of their insurance risk through self-insured retentions (SIRs) or large deductible programs. Self-insurance makes economic sense when the organization is large enough to benefit from the law of large numbers, can earn investment income on retained premiums, and wants to avoid paying the insurer's expense and profit loads on predictable losses. Actuaries help organizations determine the optimal retention level by analyzing the tradeoff between premium savings and increased claim variability. Loss forecasting, cash flow analysis, and reserve estimation for self-insured programs require the same actuarial rigor as traditional insurance.

Captive Insurance Companies

A captive insurance company is a subsidiary created to insure the risks of its parent organization. Captives can be pure (insuring only the parent), group (insuring multiple organizations), or rent-a-captives (cells within a larger structure). Actuaries perform feasibility studies for captive formation, projecting premiums, losses, expenses, and capital requirements. Ongoing actuarial services include loss reserving, rate setting, and regulatory compliance. Captive domiciles (Vermont, Bermuda, Cayman Islands, and others) have specific actuarial requirements for annual opinions and capital adequacy. The tax treatment of captive premiums requires that the arrangement involve genuine risk transfer and risk distribution, which actuaries must demonstrate.