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📋 '''Signed line''' refers to the percentage of risk that an [[Definition:Underwriter | underwriter]] or [[Definition:Lloyd's syndicate | Lloyd's syndicate]] has formally committed to on a [[Definition:Slip | slip]] or [[Definition:Placing document | placing document]]. In the [[Definition:Lloyd's of London | Lloyd's]] and London market tradition, a risk is often shared among multiple underwriters, each "signing" a portion of the total line. The signed line represents the actual, confirmed share of liability each participant accepts after the [[Definition:Broker | broker]] has completed the [[Definition:Placement | placement]] process, and it may differ from the amount initially quoted during negotiations.

⚙️ During the placing process, a broker circulates the slip to prospective underwriters, each of whom indicates a preliminary line — sometimes called a [[Definition:Written line | written line]] — reflecting the share they are willing to accept. If the slip becomes oversubscribed, meaning written lines exceed 100% of the risk, each participant's share is typically scaled back through a process known as [[Definition:Signing down | signing down]]. The signed line is the final, adjusted percentage recorded after this reconciliation, and it determines each underwriter's precise share of [[Definition:Premium | premiums]] collected and [[Definition:Claims | claims]] paid. Market bureaus and platforms such as the [[Definition:Xchanging Ins-sure Services (XIS) | XIS]] processing system historically handled this calculation to ensure accuracy across all parties.

💡 Getting the signed line right is fundamental to the orderly functioning of subscription markets. Without a clear, agreed-upon allocation, disputes over [[Definition:Claims settlement | claims settlement]] obligations and premium distribution would be inevitable. For [[Definition:Managing general agent (MGA) | MGAs]] and [[Definition:Coverholder | coverholders]] operating under [[Definition:Delegated underwriting authority (DUA) | delegated authority]], understanding the signed line on their [[Definition:Binding authority agreement | binding authority agreements]] is equally critical, as it defines the capacity backing the business they write. As digital placement platforms modernize the London market, the signed line increasingly flows through electronic systems, reducing manual errors and accelerating the [[Definition:Policy lifecycle | policy lifecycle]].

'''Related concepts'''
{{Div col|colwidth=20em}}
* [[Definition:Written line]]
* [[Definition:Signing down]]
* [[Definition:Slip]]
* [[Definition:Subscription market]]
* [[Definition:Lloyd's syndicate]]
* [[Definition:Placement]]
{{Div col end}}

Definition:Signed line - Revision history

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