What fee may apply if a renter returns a vehicle late?

If a renter returns a vehicle late, late fees are commonly applied as a standard practice within rental car agreements. Rental companies specify in their contracts that the vehicle must be returned by a certain time and date. If the vehicle is not returned within this timeframe, the rental company incurs additional costs, such as the loss of potential rentals for that vehicle. Consequently, late fees are a way for the company to compensate for these inconveniences.

While parking fees, service fees, and processing fees may be relevant in different contexts—such as charges for optional services or administrative handling—late fees specifically address the situation of a user returning a car past the agreed-upon return time. This makes late fees the only applicable charge for a late return scenario among the given choices.