If an institution originated an item in error, a reversal can be initiated. If the credit union receives an item originated from another institution and it cannot be posted, the item can be returned. If there is a question of whether the item was originated by the credit union or received from another institution, review the trace number. The first 8 digits of the trace number are the first 8 digits of the originating financial institution’s routing number.
Example for reversal:
An ACH item is included on the credit union’s exceptions for NSF. If the first 8 digits of the trace are the same as the first 8 digits of the credit union’s routing number, it means that the item was originated by the credit union and the member's account did not have enough funds to cover the item. The offset NSF entry to the credit union member and the item initially originated to the other institution are reversible.
Example for return:
If an item is included on the exceptions and the trace does not begin with the credit union’s routing number, it was originated by another institution and can possibly be returned.
The Nacha Rules state that “REVERSAL” must be in the Company Entry Description Field, and the reversal must be completed within 5 banking days following the settlement of the erroneous entry. For further Nacha Rules requirements for reversals and returns, please review the Nacha Rules book.
For additional FAQs and helpful information, subscribers to Catalyst Corporate ACH processing can follow the link on the ACHOne home page.