How long does a refrigerated cake last?

Homemade Cakes:

* Uniced or Unfrosted: 1-2 days

* Iced or Frosted: 3-5 days

Store bought cakes:

* Unopened : 3-4 days past its "sell-by" date.

* Opened: About a week if resealed tightly

Note: Store-bought iced cakes generally have an "expiration date" stamped on the package.