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📉 '''Net combined ratio''' is a key profitability metric in the insurance industry that measures an [[Definition:Insurance carrier | insurer's]] underwriting performance after accounting for the effects of [[Definition:Reinsurance | reinsurance]]. It represents the sum of the [[Definition:Net loss ratio | net loss ratio]] and the [[Definition:Net expense ratio | net expense ratio]], calculated on a net basis — meaning that [[Definition:Ceded premium | ceded premiums]], [[Definition:Reinsurance recovery | reinsurance recoveries]], and [[Definition:Ceding commission | ceding commissions]] have already been factored into the numerator and denominator. A net combined ratio below 100% indicates that the insurer is generating an [[Definition:Underwriting profit | underwriting profit]] from its retained book of business, while a ratio above 100% means it is paying out more in net losses and expenses than it collects in [[Definition:Net premium written | net premiums written]].

⚙️ Calculating this ratio requires careful separation of gross and net figures across the income statement. The net loss ratio divides net incurred losses — gross [[Definition:Incurred loss | incurred losses]] minus recoveries from reinsurers — by [[Definition:Net premium earned | net premiums earned]]. The net expense ratio divides [[Definition:Underwriting expense | underwriting expenses]] (net of ceding commissions received from reinsurers) by net premiums earned or written, depending on the convention used. Because reinsurance can dramatically alter both the numerator and the denominator, the net combined ratio often tells a very different story than the [[Definition:Gross combined ratio | gross combined ratio]]. An insurer with a punishing gross loss ratio might still show a healthy net combined ratio if its [[Definition:Reinsurance program | reinsurance program]] effectively caps losses from large events or attritional severity.

🔑 Analysts, [[Definition:Rating agency | rating agencies]], and investors focus on the net combined ratio because it reveals the true economics of the risk the insurer actually retains on its own balance sheet. Two companies can write identical gross premium volumes yet produce vastly different net combined ratios depending on how aggressively they [[Definition:Cede | cede]] risk and at what cost. During periods of elevated [[Definition:Natural catastrophe (nat cat) | nat cat]] activity or adverse [[Definition:Loss development | loss development]], the net combined ratio exposes whether an insurer's reinsurance protections are performing as intended. For [[Definition:Chief financial officer (CFO) | CFOs]] and [[Definition:Chief underwriting officer (CUO) | CUOs]], managing this ratio quarter to quarter involves balancing the cost of reinsurance against the volatility reduction it provides — a trade-off that sits at the core of strategic capital management.

'''Related concepts'''
{{Div col|colwidth=20em}}
* [[Definition:Combined ratio]]
* [[Definition:Net loss ratio]]
* [[Definition:Net expense ratio]]
* [[Definition:Underwriting profit]]
* [[Definition:Ceded premium]]
* [[Definition:Reinsurance recovery]]
{{Div col end}}

Definition:Net combined ratio - Revision history

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