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

  • ACH Debit

    An ACH debit occurs when the receiver’s account is debited.

    Learn More
  • Payment Gateway

    A payment gateway is an application service provider that authorizes credit card, debit card and electronic check payments for businesses. A payment gateway facilitates the transfer of...

    Learn More