Reinsurance pricing

Reviewed by Apex Insurance Brokers · Last reviewed 2026-06-22

~2 min read

Reviewed by Apex Insurance Brokers · Last reviewed 2026-06-22

Category: Reinsurance pricing · Reviewed by Taylor Watts, Broker · New Business · Last reviewed

Reinsurance pricing is the actuarial and underwriting discipline of setting the premium for a reinsurance contract — proportional or non-proportional, treaty or facultative — based on the expected losses, structural features and market context.

Generic approach

Indicated premium = Expected losses + Risk margin + Brokerage and frictional costs + Cost of capital + Profit loading

The expected loss component dominates in working layers; the cost of capital and profit loading dominate in catastrophe layers where expected loss is small.

Methods

Layered pricing

For a multi-layer programme:

  1. Working layer (e.g. £1m xs £5m) — burning cost dominant; profitable for both sides.
  2. Middle layer (e.g. £10m xs £10m) — credibility-weighted burning cost and exposure rate.
  3. Top layer (e.g. £50m xs £50m) — exposure rate dominant; cat model output for nat-cat layers.

Reinstatements

Most non-proportional layers permit reinstatement of cover after a loss, against a paid premium (“reinstatement premium”). The number of reinstatements, the cost, and any aggregate limit materially affect the layer’s cost-of-capital loading.

References

Cross-references


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