Definition
A Z-Report (daily closing) is a legally required cash register report that summarizes all revenues, cancellations, and payment methods at the end of each business day.
Background & relevance for restaurant operators
A Z-Report must be created daily and kept for at least ten years. It serves as proof during tax audits. Digital POS systems generate the Z-Report automatically and store it in an audit-proof manner — including net revenues, taxes, and payment methods.