How long is meat good after the expiration date?

It isn't. That's why it's called an "expiration date." Eating it past that date could be harmful, and you risk getting a disease such as E. Coli. If the food was stored properly as indicated on the package, the food is good to eat quite long after the expiration date. The expiration date is similar to a guarantee, for consumers; for example, restaurants. If you see any change in the food or are not sure, or have doubts, throw the food away. If the food is not stored properly as indicated on the package label it may be bad long before the expiration date.