Proportional Treaty Reinsurance

A proportional reinsurance agreement, also known as “Pro Rata ”, reinsurance, obligates the reinsurer to share a percentage of the losses. The reinsurer receives a prorated share of the insurer’s premiums.

Types of proportional reinsurance include quota share treaties, surplus treaties, and facultative-obligatory treaties.

How do they work?

Primary Insurer:

  • Calculates premium including acquisition and administration costs
  • Cedes part of the original premium, including the portion attributable to costs to the reinsurer.

Reinisurer:

  • Reimburses the costs via commission
  • Pays % of losses