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📏 '''Gross line''' refers to the maximum amount of [[Definition:Insurance | insurance]] or [[Definition:Reinsurance | reinsurance]] liability that an [[Definition:Underwriter | underwriter]] or insurer is willing to accept on a single risk before accounting for any reinsurance recoveries that may reduce the ultimate net exposure. It represents the full face value of the commitment as written, reflecting the insurer's total potential payout obligation on that risk. The term is used most frequently in the context of [[Definition:Treaty reinsurance | treaty]] and [[Definition:Facultative reinsurance | facultative reinsurance]] discussions, [[Definition:Line slip | line slips]], and capacity planning, where the distinction between what an insurer writes gross and what it retains net is central to portfolio construction.

⚙️ When an underwriter evaluates a risk — say, a large commercial property account — the gross line is the amount they commit to on the policy or slip before any [[Definition:Quota share reinsurance | quota share]], [[Definition:Surplus share reinsurance | surplus share]], or [[Definition:Excess of loss reinsurance | excess of loss]] reinsurance reduces their retained exposure. An insurer might write a gross line of $50 million on a single industrial complex but retain only $10 million net after ceding the remainder through its reinsurance program. In subscription markets like [[Definition:Lloyd's of London | Lloyd's]], multiple [[Definition:Syndicate | syndicates]] each commit their own gross line to a slip, and the sum of these lines constitutes the total placement. The ratio between an insurer's gross line and its [[Definition:Net retention | net retention]] is a critical measure of how aggressively a carrier leverages its reinsurance arrangements, and reinsurers scrutinize this ratio to ensure that ceding companies maintain adequate "skin in the game."

💡 Understanding the gross line is essential for anyone involved in [[Definition:Capacity management | capacity management]], [[Definition:Aggregation risk | aggregation]] control, or reinsurance purchasing. An insurer that consistently writes large gross lines relative to its [[Definition:Surplus | surplus]] is amplifying its dependence on reinsurance recoveries, which introduces [[Definition:Credit risk | credit risk]] if a reinsurer fails to pay. Regulators in jurisdictions governed by [[Definition:Solvency II | Solvency II]], [[Definition:Risk-based capital (RBC) | RBC]] standards, or [[Definition:C-ROSS | C-ROSS]] all examine the relationship between gross and net exposures when assessing capital adequacy. For [[Definition:Insurance broker | brokers]] structuring placements, knowing each market's maximum gross line helps them efficiently fill capacity on large or complex risks without oversubscribing or leaving gaps.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Net retention]]
* [[Definition:Net line]]
* [[Definition:Surplus share reinsurance]]
* [[Definition:Quota share reinsurance]]
* [[Definition:Line slip]]
* [[Definition:Capacity management]]
{{Div col end}}

Definition:Gross line - Revision history

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