• The claim basis is a form of reinsurance in which the date of the statement of the insured event is considered the date of the occurrence of the insured event. Thus, claims made during the term of the reinsurance contract are covered regardless of when they occurred. The indemnity agreement is considered to “cut the tail” of liability because it does not cover claims asserted after the reinsurance agreement has been extended, unless it has been extended by special agreement.