Auxiliary On-Us Field

A field on the magnetic ink character recognition (MICR) line of a check or share draft. 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 accounts receivable conversion (ARC), back office conversion (BOC), and point-of-purchase (POP) entries.

Related Terms

  • COR (Notification of Change)

    A COR entry is initiated by a receiving depository financial institution (RDFI) to inform an originator of incorrect information submitted in an entry. The originator must correct...

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  • Consumer Account

    An account held at a development financial institution (DFI) which has been opened by a natural person and is used for personal needs.

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