Payment Glossary

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

  • FDIC (Federal Deposit Insurance Corporation)

    The Federal Deposit Insurance Corporation provides deposit insurance to depositors within U.S. banks. Its primary source of funding is through member dues from included banks.

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  • RDFI (Receiving Depository Financial Institutions)

    A financial institution qualified by the National Automated Clearing House Association (NACHA) to receive ACH transactions.

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