Combined Ratio Calculator

Under 100% means underwriting profit.

How the Math Works

The Combined Ratio Calculator evaluates an insurance company's underwriting performance using the formula: (Incurred Losses + Underwriting Expenses) / Earned Premiums. Incurred losses represent total claims paid plus adjustments to reserves, while underwriting expenses cover operational costs like commissions, salaries, and administrative fees. Earned premiums reflect the portion of premiums actually earned during the policy period. A ratio below 100% indicates profitable underwriting, while over 100% suggests losses in this area, excluding investment income.

Practical Applications

Insurance companies use this metric to assess underwriting efficiency and profitability. By tracking the combined ratio, insurers can identify areas for cost reduction, refine risk selection, or adjust pricing strategies. A ratio above 100% signals the need for operational changes, such as improving claims management or reducing expenses, to ensure long-term viability and competitiveness in the market.

Day-to-Day Use

For policyholders, the combined ratio indirectly reflects insurer stability and reliability. Companies with strong (sub-100%) ratios are more likely to maintain competitive pricing, offer consistent service, and avoid financial instability that could impact claims processing. Consumers can use this metric to choose insurers with proven underwriting discipline, ensuring their coverage remains secure and affordable over time.

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