ACK (ACH Payment Acknowledgement)

An ACK entry is an acknowledgement by the receiving depository financial institution (RDFI) confirming the receipt of a corporate credit or debit (CCD) credit entry.

Related Terms

  • Chargeback (Card Processing)

    A chargeback is a transaction that is returned by the card issuer to a merchant’s acquirer bank because of a dispute, processing or point-of-sale error, or fraudulent...

    Learn More
  • Settlement Date

    The date an exchange of funds will be reflected on the books of the Federal Reserve Bank.

    Learn More