Yes, the Suica card (and Pasmo) works perfectly in Kyoto in 2026. Thanks to the "National Mutual Usage" system, IC cards from Tokyo are compatible with almost all major transit systems in the Kansai region. You can use your Suica to tap-and-go on the Kyoto City Subway, JR West lines, and Kyoto City Buses. It is also widely accepted at convenience stores (like 7-Eleven or Lawson), vending machines, and many taxis throughout Kyoto. However, there are two 2026 "fine print" items: First, you cannot easily "refund" a Suica card in Kyoto; that must be done in the Tokyo (JR East) area. Second, if you are traveling between regions (e.g., taking a local train from Tokyo to Kyoto), you cannot use the IC card for the entire journey; you must buy a separate Shinkansen ticket. But for daily hopping around the temples and shrines of Kyoto, your Tokyo-bought Suica is an indispensable and fully functional tool.