Insurance companies and pension funds have liabilities which essentially include fixed amounts payable on predetermined dates. (en.wikipedia.org)
They may include a down payment and a series of installment payments toward the full premium, due at certain predetermined dates. (carinsurancequote.net)
Sometimes a life insurance carrier may elect to allow applicants to start the policy at a lower initial rate then increase it at a specific predetermined date in the future. (lifeinsurancehub.net)