Definition - What does Bordereau mean?
A bordereau is a document produced by an insurance company and given to its reinsurer. It lists information about the risks taken by the latter, such as data about the insured or the losses made from claims.
Insuranceopedia explains Bordereau
A bordereau is part of a reinsurance contract. It presumes that, since the ceding company knows more about the risks that it has passed on to the reinsurer, it is responsible for periodically updating the reinsurer about its financial status (losses made, premiums paid) and other pertinent information. Meanwhile, the reinsurer studies the report to inform its future decisions, such as knowing what risks should be reinsured based on profitability.