Paciocco is not just a banking case. It matters whenever a contract charges a fixed fee for late payment, default, cancellation, failed payment, minimum commitment or other breach-like event. The legal question is not simply whether the fee equals the supplier's immediate administrative cost.
The High Court accepted that a party can have broader legitimate interests, such as operational, regulatory and capital costs. For businesses, that means fee drafting should explain the commercial purpose, but it also means aggressive default fees still need careful review.