In order to ride the tram, you need a valid ticket. While you are supposed to have a ticket for every ride you take, it's an honor system, with random spot checks on trams and buses. If you are caught without a ticket, you'll be fined a substantial amount.

Trams in Basel are effectively free for any tourist staying overnight in the city. Upon checking into any licensed accommodation (hotel, hostel, or Airbnb) in 2026, you receive the BaselCard. This personal guest card provides unlimited free travel on all public transport within the city and its immediate surroundings (Zones 10, 11, 13, 14, and 15), including the tram network, buses, and even the small wooden ferryboats that cross the Rhine. For those arriving from the EuroAirport or Basel SBB train station, your booking confirmation serves as a free ticket to reach your hotel on your day of arrival. If you are just visiting for the day and not staying overnight, you must purchase a standard ticket or a day pass. The system is based on an "honor" check; while there are no turnstiles, roving inspectors frequently check for a valid BaselCard or ticket, and the fines for "fare dodging" remain high.