Unlike trains you may be used to, Shinkansen do not have a specific area in each carriage for bags, so you will need to either place them behind the very last row of seats in the car, or smaller items can be placed on the overhead rail.

Storage for large suitcases on the Japanese Shinkansen in 2026 is governed by the "Oversized Baggage" rules. If your suitcase's total dimensions (length + width + height) are between 161 cm and 250 cm, you are legally required to reserve a "Seat with Oversized Baggage Area" in advance. These seats are located at the very back of the car, and your bag is stored in the space behind your seat. If you have a standard "check-in" size bag (under 160 cm), you can simply store it on the overhead racks, which are surprisingly deep and sturdy. For those who do not want to lug heavy bags through the station, Japan's Takuhaibin (Luggage Delivery Service) is the preferred 2026 method; for about $15–$20, you can have your large suitcases sent from your hotel in Tokyo directly to your hotel in Kyoto, allowing you to travel "hands-free" on the bullet train. This service is highly efficient and usually offers next-day delivery across the country.