A system and a method for transacting a beneficiary certificate with an FNA(Financial Network Account) are provided to enable a customer to collect investment while keeping money and earnings invested in real estate and/or special asset funds before expiration of a fund investment period by delivering/listing the beneficiary certificate to the FNA and selling the beneficiary certificate to other customers. An account opener opens a beneficiary certificate account corresponding to more than one fund subscribed by a customer and opens an FNA of the customer. An information storing part links/stores the opened beneficiary certificate and FNA information to a storage medium. A beneficiary certificate delivery processor(4505) checks the FNA of the customer linked with the beneficiary certificate account by linking with the storage medium and delivers the beneficiary certificate deposited in the beneficiary certificate account to the checked FNA when the customer requests transaction of the beneficiary certificate corresponding to the fund.