Claims-cost measure combining paid amounts with reserve changes.
Incurred losses are the claims costs attributed to a period after combining what has already been paid with what the insurer still expects to pay. This is the loss measure that often feeds loss ratio and combined ratio.
An expanded teaching view often includes case-reserve and IBNR movement inside that reserve change.
This term matters because claims do not arrive in neat cash-only form. An insurer can pay relatively little on a claim today and still recognize a much larger expected future cost through reserves. If readers look only at claims paid, they can badly misread the profitability of a book.
Incurred losses therefore give a better period view of claims burden than paid losses alone. They are one of the main links between claim development, reserving, and underwriting results.
| Component | What it captures | Why it matters |
|---|---|---|
| Paid losses | Amounts already disbursed on claims | Shows cash already gone out the door |
| Reserve change | Increase or decrease in expected future claim payments | Captures the still-unpaid part of the claim burden |
| Total incurred losses | Paid amounts plus reserve movement | Better measure for profitability and ratio analysis |
Assume an insurer pays CAD 2 million on a group of claims during the year, but its reserve estimate for those same claims rises by CAD 800,000. The incurred losses for the period are CAD 2.8 million, not just the cash paid.
That difference matters because a ratio based on paid losses alone would understate the pressure on the book.
Incurred losses are not the same as cash paid. Paid losses are only one part of the picture.
They are also not identical to loss reserve. A reserve is the remaining estimated obligation. Incurred losses combine paid amounts with reserve movement to describe the claim burden of the period.
Readers also sometimes assume incurred losses are perfectly final. They are not. Reserve development can still move the number later.
The exact presentation can vary by reporting basis, reinsurance treatment, and reserve methodology. Incurred losses are highly useful, but they remain estimate-sensitive when open claims are still developing.