The "Gutschriftstruncation" offers a backup of allocation data (payment reference) and therefore a facilitation and a quality assurance for payees who send their customers pre-filled receipts for a more comfortable payment of claims.

Thus the payment reference is hedged with a check digit calculated in accord with ISO 7064. This check digit facilitates the automatic capture and ensures higher detection rates in the processing. Hence the automatic assigning and entering of claims achieves a significantly higher rate.

For that purpose is an Excel-Sheet available, which illustrates the calculation of check digits in the "Truncationsverfahren" and also suits the creation of small amounts of check digits.

Since the 1st January 2009 the possibility for a "Gutschriftstruncation" with the was created. It concerns an additional check digit on the "Zahlungsanweisung". This supplementary check digit ensures the correct processing of the reference on the receipt by the system. The payment reference solely consists of 35 digits.