Also known as: bordereau meaning · bordereaux · premium bordereau · loss bordereau
A detailed schedule of premiums or losses that one party reports to an insurer or reinsurer.
A bordereau (plural: bordereaux) is a detailed report that lists individual risks, premiums, or losses, provided on a regular schedule by one party to another in an insurance arrangement. It is most common in reinsurance and in delegated-authority setups (such as an MGA or program administrator writing policies on an insurer's behalf), where the party doing the underwriting reports the book of business to the risk-bearing insurer or reinsurer. A premium bordereau lists the policies and premiums written; a loss bordereau lists claims. Founders rarely see one directly, but the term shows up in the plumbing of how specialty and program coverage is administered.
A bordereau is a detailed schedule of premiums or losses that one party reports to an insurer or reinsurer on a set schedule. It lists individual risks or claims and is most common in reinsurance and delegated-authority (MGA/program) arrangements.
A premium bordereau lists the policies written and the premiums collected during a period. A loss bordereau lists the claims and loss amounts during a period. Both let the risk-bearing insurer or reinsurer track a book of business it did not directly administer.
Definitions are educational and may be modified by your specific policy language, endorsements, and state rules. For regulatory guidance, refer to the California Department of Insurance or the NAIC.
Last updated: July 2026.