Definition:Quota share
📋 Quota share is a form of proportional reinsurance in which the ceding insurer transfers a fixed percentage of every premium and loss on a defined book of business to the reinsurer. If a treaty specifies a 30% quota share, the reinsurer receives 30% of the written premium and pays 30% of every claim — no matter how large or small — on every policy falling within the treaty's scope. This simplicity makes quota share one of the most widely used reinsurance structures in the market, favored for its transparency, ease of administration, and clean alignment of interests between cedent and reinsurer.
🔄 The mechanics revolve around two key economic levers: the cession percentage and the ceding commission. The ceding commission — a percentage the reinsurer pays back to the cedent out of the ceded premium — compensates the insurer for acquisition costs, overhead, and profit margin. Negotiations over the commission rate are central to every quota share placement; a higher commission effectively boosts the cedent's combined ratio on the retained portion, while a lower commission reflects the reinsurer's assessment of the book's profitability. Some treaties include a sliding scale commission that adjusts up or down based on actual loss experience, introducing performance incentives into the arrangement.
💡 Quota share treaties are especially valuable for insurers seeking to grow into new lines or geographies without straining their capital base. A startup MGA writing specialty risks, for instance, may cede 60% or more to a reinsurer, effectively borrowing the reinsurer's capacity and balance sheet strength while it builds loss history and scales operations. Established carriers use quota shares to manage solvency ratios, reduce catastrophe volatility across a portfolio, or fund rapid premium growth. Rating agencies and regulators evaluate quota share treaties carefully, since the degree of genuine risk transfer — including features like loss corridors or aggregate caps — determines whether the cedent receives full credit for the cession.
Related concepts