Internal Order Code (IOC)

An internal order code (IOC) is a five or eight-digit, alphanumeric financial code that tracks the costs of specific projects or costs across IRS travel, procurement, and financial systems. It must be used for events with costs between $0 and $19,999. IOCs are business unit specific and are not used by other business units.

The business unit’s finance or budget staff establishes IOCs following Corporate Budget Office guidance.

If an event has a dual training and operational purpose, the business unit must assign a training IOC for the training portion and an operational IOC to capture the operational portion of the event.

If

then assign

one event

one IOC.

multiple events

separate IOCs for each event.

the event is taking place at one time

one IOC to track the full-cost of the event.