In 2026, whether you need to "validate" a ticket in Zurich depends on how the ticket was purchased. If you buy a digital ticket through the SBB Mobile app or the ZVV website, you do not need to validate it; the ticket is automatically activated for the time and date selected at the time of purchase. However, if you buy a physical multi-trip card (Mehrfahrtenkarte) from a station kiosk, you must physically "stamp" or validate it at the small orange or blue machines on the platform or near the bus/tram stop before boarding. For a standard single-use paper ticket bought at a machine, it is usually pre-validated for immediate travel. Zurich operates on an "Honor System" with random ticket inspections; if you are caught on a train, tram, or bus with an unvalidated multi-trip card or no ticket at all, you will be issued a significant on-the-spot fine (typically CHF 100 or more). A "pro tip" for 2026 is to use the EasyRide feature in the SBB app, which tracks your journey via GPS and automatically charges you the correct, validated fare at the end of the day.