No, QR codes do not have expiration dates. Static QR codes are created only once and work whenever scanned without expiration. You can consider the expiration date for dynamic QR codes to be the last day payment should be made. If payment is not made, dynamic QR codes expire and stop working. However, once payment is made, dynamic QR codes become active and work as usual. To avoid ever encountering QR code expiration, you can click the link to access the article that lists all tips.