Lists of premiums and claims prepared monthly or quarterly by cedants or coverholders for reinsurers or underwriters to advise them of risks accepted and claims incurred under treaties or binding authorities. Bordereaux are not always required in reinsurance treaties.
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A list of premiums payable and claims paid or due which is prepared by a coverholder for a managing agent or by a reassured for its reinsurer. Bordereaux are commonly produced on a monthly or quarterly basis. They breakdown block premium payments that are made to underwriters and detail claim payments made on behalf of or due from underwriters.