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AAP
An Accredited ACH Professional certified by NACHA.
ACH
Automated Clearing House - ACH is a reliable electronic funds transfer (EFT) system governed by NACHA, The Electronic Payments Association.
ACH Credit
An ACH credit occurs when the Receiver’s account is credited.
ACH Debit
An ACH Debit occurs when the Receiver’s account is debited.
ACH Operator
ACH operator is the term used to describe the switching mechanism within the settlement network that provides information to the network participants. The ACH operator calculates the settlement totals owed to and by the participating financial institutions based on the effective entry and processing dates of batches of transactions.
ACK (ACH Payment Acknowledgement)
An ACK entry is an acknowledgement by the RDFI confirming the receipt of a CCD credit entry.
ARC (Accounts Receivable Entry)
An ARC entry is a one time debit entry to the account of a receiver whom has previously been notified that their check (source document) will be converted into a single entry ACH transaction. The receiver must provide the source document to the originator via a dropbox location or through the U.S. mail.
ATX (Financial EDI Acknowledgement)
An ATX entry is an acknowledgement by the RDFI confiming the receipt of a CTX credit entry.
Auxiliary On-Us Field
A field on the MICR line of a check or sharedraft. This is an optional field that can be found to the left of the routing number. The presence of this field makes the check in-eligible to be used as a source document for ARC, BOC and POP entries.