No, you cannot return a Pasmo or Suica card for a refund in Osaka. While these "IC cards" are cross-compatible and can be used to pay for trains and buses in Osaka (on the JR and Subway lines), they are issued by companies based in the Tokyo (Kanto) region. To get your ¥500 deposit and remaining balance back, you must return the card to a station office of the issuing company in the Tokyo area (such as a Tokyo Metro or Keikyu station). In Osaka, the local equivalent is the ICOCA card; if you buy an ICOCA, you can return it in Osaka or Kyoto at any JR West ticket office. For 2026 travelers, if you are finishing your trip in Osaka but have a Pasmo, the best strategy is to spend the remaining balance at a convenience store or airport shop before you leave Japan, as the cards are valid for 10 years and the ¥500 deposit is a small price to keep it as a souvenir for your next visit.