Combined Ratio
The single number that tells you if a general insurer is actually profitable on underwriting alone
Imagine a canteen that wants to know, purely from selling meals, whether it is actually profitable, ignoring for a moment any extra income it might separately earn by investing its cash reserves in a savings account. Combined Ratio asks exactly this question of a general, non-life insurer's core underwriting business.
Combined Ratio adds together an insurer's claims paid out and its operating expenses, then divides that total by the premiums it earned over the same period. A ratio below 100% means the insurer made a genuine underwriting profit, it collected more in premiums than it paid out in claims and expenses combined. A ratio above 100% means an underwriting loss, the insurer paid out more than it collected purely from the insurance business itself.
Many general insurers, in India and globally, routinely operate with a combined ratio above 100%, and remain overall profitable anyway, because they earn meaningful investment income on the large pool of premium money, the float, they hold between collecting premiums and eventually paying claims. This is why combined ratio and overall profitability are genuinely different questions, an insurer can have a mediocre or even loss-making underwriting business while still reporting a healthy overall profit, entirely on the back of investment returns.
This distinction matters enormously to how analysts judge insurer quality. A company consistently posting a combined ratio well above 100%, papered over by strong investment markets, is more vulnerable than one with a genuinely profitable underwriting business, since a market downturn can remove the investment income cushion at exactly the same time claims might be rising.
Whenever a general insurer's results are praised for "underwriting discipline," combined ratio, ideally comfortably below 100% and improving over time, is almost always the specific number behind that praise, a sign the company is making genuine money from insuring risk, not merely from investing the premiums it happens to be holding.
Related concepts
Solvency Ratio
The insurance industry's version of a bank's capital adequacy cushion
Embedded Value
How a life insurer puts a number on profit it hasn't actually earned yet
VNB Margin
How profitable a life insurer's brand new policies actually are, stripped of everything already on the books