The fare increase, approved by the government in August 2025, will apply to tickets and commuter passes purchased on or after Saturday. Tickets and commuter passes purchased by Friday will still be sold at current prices, even if the travel date or start of validity falls after the fare revision. JR East has warned that ticket counters and machines may become crowded ahead of the change as commuters rush to buy passes before the higher fares take effect. Off-peak commuter passes, which are about 15% cheaper than standard commuter passes, will continue to be offered, and their coverage area in the Tokyo metropolitan region will be expanded starting Saturday to include stations such as Kuki and Hiratsuka.