受益人證明書是一種由受益人自已出具的證明，以便證明自已履行了信用證規定的條款，如證明所交的貨物的品質、證明運輸包裝處理，證明按要求寄單等。
信用證中有關受益人證明書條款舉例：
A、 COPY OFLETTER FROM BENEFICIARY TO OUR APPLICANT EVIDENCING NON NEGOTIABLE B/L TOGETHER WITH COPY OF OTHER DOCUMENTS WERE SENT DIRECTLY TO THEM AFTER ONE DAYS FROM SHIPMENT DATE。
B、A STATEMENT FROM THE BENEFICARY EVIDENCING THAT： PACKING EFFECTED IN 25KGS/CTN BOX。
C、A CERTIFICATE FROM BENEFICIARY STATING THAT THE FOLLOWING DOCUMENTS HAVE BEEN SENT TO THE APPLICANT BY SPEED POST AFTER SHIPMENT EFFECTED：1、1/3 ORIGINAL BILL OF LADING；2、CERTIFICATE OF QUALITY ISSUED BY CCIB/CCIC IN DUPLICATE。
BENEFICARY’S DECLARATION CERTIFYING THAT THE ORIGINAL OF EXPORT LICENCE HAS BEEN SENT TO THE APPLICANT BY EXPRESS COURIER BEFORE
