Yes, Singapore MRT cards, specifically the EZ-Link and NETS FlashPay cards, do have an expiration date. Standard adult EZ-Link cards are typically valid for five years from the date of manufacture. After this period, the card can no longer be topped up or used for transit or retail payments. You can check your card's expiry date at any General Ticketing Machine, SimplyGo Kiosk, or through the SimplyGo mobile app. In 2026, as Singapore has fully transitioned to the SimplyGo system, many travelers are now using their contactless bank cards (Visa/Mastercard) or mobile wallets (Apple Pay/Google Pay) directly at the gantry, which do not have a separate transit-specific expiry. If your physical EZ-Link card has expired, you can often "transfer" the remaining stored value to a new card or a bank account by visiting a SimplyGo Ticket Office. It is important to stay proactive about checking your card's status, as an expired card will result in a "declined" message at the fare gate, which can be a significant inconvenience during the busy rush hour in the world-class Singapore Mass Rapid Transit system.