Payment Glossary

NACHA (National Automated Clearing House Association – The Electronic Payments Association)

The national trade association responsible for developing and enforcing ACH rules and guidelines.

Related Terms

  • 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.

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  • RCK (Re-presented Check)

    An additional presentment of an eligible returned paper check through the ACH network.

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