In 2026, you cannot use a regular Suica tap to pay for a Shinkansen (bullet train) journey at the gate like you would for a local subway. The Shinkansen requires a separate fare structure that includes both a base fare and a limited-express surcharge, which a standard IC card cannot calculate. However, there are two ways to use your Suica with the Shinkansen: first, you can link a pre-purchased Shinkansen e-ticket to your Suica via services like SmartEX or JR East's "Touch de Go!" system. Second, you can use the balance on your Suica at a ticket machine to buy a physical Shinkansen ticket. For tourists in 2026, the "Touch de Go!" service is particularly useful for non-reserved seats in the JR East area (like Tokyo to Nasu-Shiobara), as it allows you to tap in and out of the Shinkansen gates directly once you have registered your card at a dedicated kiosk at the station.