Airbnb and Booking.com are two of the most popular websites for finding vacation rentals. Both Airbnb and Booking.com charge a service fee to the property owner and also keep a portion of the rental fee. Airbnb takes about 15% of the total rental amount, and Booking.com takes between 16% and 17%. While this may seem like a lot, it is important to remember that these websites provide valuable services. They promote the properties to a wide audience and process all payments for the property owner. They also provide customer support and help resolve any issues that may arise. As a result, their fees are generally considered fair.