Aufpreise
Aufpreise are price supplements added to the base price of a good or service. The term is German for surcharges or price markups and is used to describe charges that extend beyond the stated base price. An Aufpreis is typically a mandatory or optional extra that increases the total cost for the customer.
Common contexts include travel and transportation (baggage fees, seat reservations, fuel surcharges), hospitality (late check-out, premium
Rules around Aufpreise emphasize transparency. In many markets, providers must disclose any surcharges clearly before purchase,
Economic rationale: Aufpreise cover incremental costs, capacity constraints, or service variability. They can reflect seasonal demand