Combined Ratio Calculator
Print| Loss Ratio Component | 0.00% |
| Expense Ratio Component | 0.00% |
| Underwriting Profitability | - |
Measure the true underwriting profitability and operational efficiency of an insurance company. Use this Combined Ratio Calculator to sum the Loss Ratio and Expense Ratio, evaluate net underwriting margin performance, and analyze financial solvency benchmarks.
The Formula for Insurance Combined Ratio
In property and casualty (P&C) insurance, the Combined Ratio measures total underwriting losses and operational expenses relative to net earned premiums:
Loss Ratio (%) = (Net Incurred Claims & Losses + Loss Adjustment Expenses) / Net Earned Premiums × 100
Expense Ratio (%) = (Underwriting & Operating Expenses + Commissions) / Net Written Premiums × 100
Combined Ratio (%) = Loss Ratio + Expense Ratio
Where:
- Combined Ratio < 100%: Indicates underwriting profit (the insurer collects more in premiums than it pays in claims and expenses).
- Combined Ratio > 100%: Indicates underwriting loss (claims and operating expenses exceed collected premiums).
- Net Earned Premiums: Pro-rata portion of written premiums applicable to the accounting period.
Insurance Combined Ratio Benchmark & Profitability Matrix
Refer to the lookup table below to understand how different Combined Ratio percentages reflect insurance company performance and financial health:
| Combined Ratio Range | Loss Ratio Component | Expense Ratio Component | Underwriting Profitability | Operational Assessment |
|---|---|---|---|---|
| Below 90.0% | 55.0% to 62.0% | 25.0% to 28.0% | High Underwriting Profit (10%+ Margin) | Exceptional risk selection and cost control. |
| 90.0% to 99.9% | 63.0% to 70.0% | 27.0% to 30.0% | Profitable Underwriting (0% to 10% Margin) | Healthy operational balance. |
| 100.0% (Break-Even) | 70.0% | 30.0% | Zero Underwriting Profit | Relies 100% on investment income for overall profit. |
| Above 100.0% | 75.0%+ | 30.0%+ | Underwriting Loss | Claims and expenses exceed premium income. |
Step-by-Step Combined Ratio Example
Suppose an insurance carrier writes $50,000,000 in net earned premiums, incurs $32,500,000 in claims and loss adjustment expenses, and pays $14,000,000 in underwriting expenses and agent commissions:
- Calculate Loss Ratio: ($32,500,000 claims / $50,000,000 earned premiums) × 100 = 65.0% Loss Ratio.
- Calculate Expense Ratio: ($14,000,000 expenses / $50,000,000 earned premiums) × 100 = 28.0% Expense Ratio.
- Calculate Combined Ratio: 65.0% Loss Ratio + 28.0% Expense Ratio = 93.0% Combined Ratio.
- Calculate Net Underwriting Margin: 100% – 93.0% = 7.0% Net Underwriting Profit Margin ($3,500,000 underwriting profit).
Frequently Asked Questions
Why can an insurer be profitable with a Combined Ratio over 100%?
Insurers collect premiums upfront and invest those funds (the “float”) in bonds and income-generating assets before claims are paid out. Investment income earned on float can offset underwriting losses when the Combined Ratio exceeds 100%.
What is the difference between Combined Ratio and Operating Ratio?
The Combined Ratio evaluates pure underwriting performance (Loss Ratio + Expense Ratio). The Operating Ratio subtracts net investment income ratio from the Combined Ratio, measuring overall corporate profitability.
How do insurance companies lower a high Combined Ratio?
Insurers lower their Combined Ratio by raising premium rates, tightening risk selection (underwriting guidelines) to reduce claim losses, or automating administrative policy processing to lower the Expense Ratio.
What is considered a good Combined Ratio in property & casualty insurance?
In the P&C insurance industry, a Combined Ratio consistently between 92% and 96% is considered strong, providing healthy underwriting profits while maintaining competitive market pricing.