Expense Ratio
Commissions plus operating expenses as a percentage of premium — the cost of sourcing and running the book.
Why you care
If the loss ratio is the cost of the promise, the expense ratio is the cost of making and keeping it: commissions to whoever sold the policy, plus salaries, rent, tech, and admin. It's the efficiency half of the combined ratio, and the half management can actually control.
Run the numbers
₹35 cr of commissions and operating costs on ₹100 cr of earned premium = a 35% expense ratio (illustrative). Add that to a 70% loss ratio and the combined ratio hits 105% — the expenses alone are what tip this insurer over the 100% line.
Where this goes
The expense ratio plus the loss ratio equals the combined ratio. Its largest single component is almost always commissions — what's paid to agents, banks and brokers to bring the premium in — and that whole line sits under a regulatory cap called EoM.
Why you care
The expense ratio is an insurer's commissions plus operating expenses, measured as a percentage of premium. Where the loss ratio captures the cost of the claims themselves, the expense ratio captures the cost of running the business that sells the cover and services it. That means distribution payouts, salaries, offices, technology, and administration.
It matters because it is the half of the combined ratio that management most directly controls. Claims are partly a matter of luck and of underwriting decisions made years ago; expenses are here-and-now choices about how much to pay for distribution and how leanly to run. Two insurers with identical loss ratios can have very different fortunes purely on expense discipline. And the biggest lever inside it is distribution cost — the commissions paid to agents, bancassurance partners and brokers to source premium. That is why an insurer with a strong direct or digital channel, paying little or no commission, can carry a higher loss ratio. It can still beat a rival that buys all its business through expensive intermediaries.
Run the numbers
The insurer earns ₹100 crore of net earned premium. Its costs of doing business break down as:
| Expense component | Amount | As % of NEP |
|---|---|---|
| Commissions to distributors | ₹18 cr | 18% |
| Employee costs | ₹9 cr | 9% |
| Rent, tech, admin | ₹8 cr | 8% |
| Total expenses | ₹35 cr | 35% (expense ratio) |
So the expense ratio is 35% (illustrative). Now stack it on the loss ratio: 70% claims + 35% expenses = a 105% combined ratio. Read the numbers and the story is blunt — this insurer would be roughly break-even on underwriting if it could pull its expense ratio down to 30%. That five-point gap is not about claims luck at all; it is about how much it pays for distribution and how tightly it runs its overheads. This is exactly why insurers push direct and digital channels: every point shaved off the expense ratio drops straight through to the combined ratio.
Where this goes
The expense ratio is the second input to the combined ratio; it and the loss ratio are the two halves that decide whether the underwriting engine runs at a profit or a loss. Its largest and most variable component is commissions, the price of distribution. And the whole line is not left to the insurer's discretion. IRDAI caps total commissions plus expenses through the Expenses of Management (EoM) limits, which put a regulatory ceiling on how high the expense ratio is allowed to go.
What causes what
Before this
- Commissions & Distribution Costcauses Expense RatioCommissions are the biggest single line inside the expense ratio, so distribution cost moves it more than any overhead does.
- Expenses of Management (EoM) Limitscauses Expense RatioThe EoM limit is the regulatory lid on the expense ratio — total commissions plus expenses can't exceed the allowed percentage of premium.
- Net Earned Premiumcauses Expense RatioThe same earned-premium base that operating and acquisition costs are measured against in the expense ratio.