What are the costs of a train reservation?
The costs of a train reservation consists of two different fees:
Train reservation fee: Prices vary considerably depending on the train. See list of train reservation fees
Booking fee: €8 per train with an unlimited number of travelers per train. This covers the booking process and printing of your reservations.
Example: A 2nd class reservation for 2 travellers on the Thalys high-speed train from Paris to Amsterdam costs: 2 x €25 train reservation fee + €8 booking fee = €58.
If you have an Interrail Premium Pass, you can book your reservations for free using the Interrail.eu Reservation Service.