Yes, you absolutely need a bag tag for any luggage you intend to check or even carry on when traveling in 2026. For checked luggage, the airline will provide a sticky "barcode" tag at the airport which is essential for the automated sorting systems to get your bag to the right plane. However, you should also have a personal contact tag on the outside of every bag. This tag should include your name, phone number (with country code), and email address; for security reasons, many experts suggest omitting your home address. Furthermore, in 2026, many frequent travelers also use electronic bag tags (like those from BAGTAG) or "Smart" tags like Apple AirTags or Tile hidden inside the bag. These allow you to track your luggage in real-time via your smartphone, providing peace of mind and an extra layer of security should the airline's physical paper tag be torn off during transit or if the bag is misrouted.