Yes, you can absolutely use a PASMO card in Kyoto in 2026. Since the nationwide integration of Japanese IC cards (the 10-card interoperability agreement), PASMO is fully functional on almost all major transit systems in Kyoto, including the Kyoto City Subway, the Hankyu Railway, the Keihan Railway, and most city buses. While PASMO is originally issued by private railway and bus operators in the Tokyo/Kanto region, it works interchangeably with Kyoto’s local ICOCA or Tokyo’s Suica. You can tap your PASMO card at the ticket gates just as you would in Tokyo, and it will automatically calculate the correct fare. The only minor limitation is that you generally cannot "return" a PASMO card for a refund in Kyoto; that must be done in the Kanto region where it was issued. However, you can top it up (recharge) with cash at ticket machines in Kyoto or via mobile apps like Apple Wallet or Google Pay instantly, making it a perfectly viable and convenient tool for navigating the ancient capital without needing to purchase a new local card.