Treaty Reinsurance
A standing reinsurance agreement covering all risks within a defined class, automatically ceding a portion to the reinsurer.
What It Is
Treaty reinsurance is a standing agreement between an insurance carrier (the cedent) and a reinsurer under which the cedent automatically cedes a defined portion of all risks within a specified class of business to the reinsurer. Unlike facultative reinsurance, which is negotiated risk by risk, treaty reinsurance operates automatically for all qualifying policies, providing efficient, broad-based risk transfer.
Treaties come in two main forms: proportional (quota share and surplus share) and non-proportional (excess of loss and stop loss). Under proportional treaties, the reinsurer shares a fixed or variable percentage of premium and losses. Under non-proportional treaties, the reinsurer pays only when losses exceed a specified retention or threshold.
Treaty reinsurance is the backbone of carrier capacity. A carrier with $50M in surplus might write $200M in premium by ceding 50% through a quota share treaty, effectively sharing the risk with the reinsurer while earning ceding commission to cover acquisition costs. The treaty terms, including reinsurer security, pricing, and coverage scope, directly influence the carrier's competitive position and financial stability.
Why It Matters for Brokers
While brokers do not directly interact with reinsurance treaties, understanding them helps explain carrier behavior. When a carrier restricts appetite, raises rates, or exits a line of business, the decision often traces back to reinsurance treaty renewals. Carriers that lose favorable reinsurance terms must either absorb more risk or reduce their writings. Brokers who understand this dynamic can better anticipate market shifts.
Real-World Example
A regional carrier writes $120M in commercial property premium and cedes 40% through a quota share treaty with a reinsurer, transferring $48M of premium and the corresponding share of losses. At the January 1 treaty renewal, the reinsurer increases its rate from 30% to 38% ceding commission (reducing the carrier's retained commission). The carrier passes this cost increase to policyholders through 5-8% rate increases across its property book. Brokers aware of the treaty renewal can anticipate and explain these increases to clients.
Common Mistakes
- 1Not recognizing that carrier rate actions are often driven by reinsurance treaty renewals rather than individual account performance, leading to ineffective negotiations focused on account-level loss ratios.
- 2Assuming carrier capacity limits are fixed when they often change annually based on treaty terms.
How brokerageaudit.com Handles This
brokerageaudit.com tracks major carrier reinsurance program information where publicly available, helping brokers understand the reinsurance dynamics behind rate actions and capacity changes. The system contextualizes carrier rate increases by linking them to known reinsurance market conditions.