You must pay the Gatwick Airport drop-off charge online or via an automated phone system; you cannot pay at a physical booth or barrier while at the airport. The charge is £6 for a stay of up to 10 minutes, with an additional £1 charged for every minute thereafter up to a maximum of 20 minutes. The system uses Automatic Number Plate Recognition (ANPR) cameras to log your vehicle's entry and exit. You have until midnight the day after your visit to make the payment. To pay, you can visit the official Gatwick Airport website and set up a "Post-Pay" account or a "Auto-Pay" account if you are a frequent visitor. Failure to pay within the allotted timeframe results in a Parking Charge Notice (PCN) of £100 (reduced to £50 if paid within 14 days). This system was implemented to reduce congestion and encourage the use of public transport, so ensure you have a digital device ready to settle the fee shortly after dropping off your passengers.