No, in 2026, two people cannot use the same Clipper card for a single journey on Bay Area transit systems. The "Next Generation Clipper" system, which fully rolled out in 2024–2025, requires each individual rider to have their own unique payment method—whether that is a physical card, a digital card in a mobile wallet (Apple Pay/Google Pay), or a contactless credit/debit card. Because many transit agencies like BART and Caltrain use "tag-on/tag-off" distance-based pricing, the system cannot track two separate journeys on one card simultaneously. If you attempt to "pass back" a card to a companion, the second tag will likely be ignored or trigger an error. For families traveling in 2026, the most efficient method is to have each person use their own smartphone's mobile wallet. However, children and seniors requiring discounted fares must still use their own individually registered, age-verified Clipper accounts to receive the appropriate subsidies.