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📊 '''Commission ratio''' is a key performance metric in the insurance industry that expresses the [[Definition:Commission | commission]] and [[Definition:Brokerage | brokerage]] costs incurred by an insurer as a percentage of [[Definition:Net earned premium | net earned premium]] (or, in some reporting conventions, [[Definition:Gross written premium | gross written premium]] or [[Definition:Net written premium | net written premium]]). It captures the portion of premium revenue consumed by payments to [[Definition:Insurance agent | agents]], [[Definition:Insurance broker | brokers]], [[Definition:Managing general agent (MGA) | MGAs]], and other distribution intermediaries. Alongside the [[Definition:Expense ratio | expense ratio]], the commission ratio forms one half of the broader [[Definition:Combined ratio | combined ratio]] framework that insurers and analysts use to assess underwriting profitability, though the exact classification of what falls into "commission" versus "other expenses" can differ between reporting standards and individual company practices.

📐 Calculation approaches vary across markets and accounting regimes. Under [[Definition:US GAAP | US GAAP]], commissions are typically recognized as [[Definition:Deferred acquisition cost (DAC) | deferred acquisition costs]] and amortized over the policy period, aligning the expense with the earning pattern of the premium. [[Definition:IFRS 17 | IFRS 17]], which became effective globally for many insurers starting in 2023, treats acquisition costs within the broader [[Definition:Contractual service margin (CSM) | contractual service margin]] and [[Definition:Loss component | loss component]] framework, which can change how and when these costs flow through the income statement. In [[Definition:Solvency II | Solvency II]] jurisdictions across Europe, commission costs feed into the calculation of technical provisions and affect the [[Definition:Solvency capital requirement (SCR) | solvency capital requirement]]. Regardless of the accounting lens, the commission ratio provides a direct window into how much an insurer is spending to acquire business — and analysts routinely benchmark it across peers, lines of business, and distribution channels to identify structural cost advantages or inefficiencies.

💡 Monitoring the commission ratio matters because distribution cost is one of the largest controllable expenses for most property-casualty and life insurers. A persistently high ratio may signal over-reliance on expensive intermediary channels, unfavorable terms in [[Definition:Binding authority agreement | binding authority agreements]], or aggressive growth strategies where carriers accept elevated acquisition costs to build market share. Conversely, insurers with strong [[Definition:Direct-to-consumer distribution (D2C) | direct-to-consumer]] capabilities or proprietary [[Definition:Captive agent (exclusive agent) | captive agent]] forces tend to report lower commission ratios, though they may offset this with higher internal operating expenses. In [[Definition:Reinsurance | reinsurance]], the commission ratio takes on additional complexity through [[Definition:Ceding commission | ceding commissions]] and [[Definition:Override commission | override commissions]], where the reinsurer effectively pays the [[Definition:Cedant | cedant]] for the quality and administration of the business being transferred. Tracking this metric over time helps management teams, investors, and regulators gauge whether an insurer's distribution economics are sustainable relative to the [[Definition:Loss ratio | loss ratio]] environment it faces.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Combined ratio]]
* [[Definition:Expense ratio]]
* [[Definition:Deferred acquisition cost (DAC)]]
* [[Definition:Loss ratio]]
* [[Definition:Cost of acquisition]]
* [[Definition:Ceding commission]]
{{Div col end}}

Definition:Commission ratio - Revision history

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