KPIOperations & Supply Chain

Combined Ratio

Loss ratio plus expense ratio; below 100% indicates underwriting profit

What is Combined Ratio?

Combined ratio is the sum of an insurer's claims costs and operating expenses, as a percentage of the premiums it earned. It shows whether underwriting is profitable.

Below 100% means the insurer made an underwriting profit, and above 100% means it paid out more than it took in before investment income.

How this KPI is measured

Function
Operations & Supply Chain
Sub-function
Portfolio Performance
Industry
Insurance
Type
Lagging
Impact
Financial control
Unit
%
Measurement frequency
Monthly / Quarterly
Formula
(Claims costs + Operating expenses) / Net premiums earned × 100

How to calculate it

Add claims costs and operating expenses, divide by net premiums earned, and multiply by 100.

For example, with claims of 60,000,000, expenses of 30,000,000 and net premiums earned of 100,000,000, the combined ratio is 90%.

It equals the loss ratio plus the expense ratio, so improving either lowers it.

Where it is used

  • Judging underwriting profit

    See if the core business pays.

  • Comparing lines and insurers

    Benchmark.

  • Setting pricing and expense targets

    Plan improvements.

How to improve it

Tips and common mistakes

  • Investment income can make a business profitable even above 100%, but relying on it is risky.
  • Look at trends as well as levels.
  • Compare by line, as risks differ.

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