Yes they do. Cigarettes come with an expiration date electronically marked on the box. For your best bet at ensuring a great quality smoke, make sure to check the date before purchasing smokes. A good rule of thumb is that once you hit the 6 month limit, store them in your refrigerator and not in your freezer as freezing causes condensation on the inside of packaging, which may soften or make cigarettes stale or dampen smoke taste.