Aspects of the technology described herein provide an activatable postage. As an initial step, the activatable postage is printed on a media, such as an envelope or sticker. Initially, the activatable postage has no postage value and will not have any value until activated. Each instance of activatable postage comprises a unique identifier encoded in a machine-readable format. Postage value is added to the activatable postage through an activation process. In order to activate an individual instance of activatable postage, the unique identifier encoded in the activatable postage needs to be provided to the activation application. At the end of the activation process, a central database is updated to associate the unique identifier with a postal value calculated during activation. When the Postal Service receives an item with activatable postage it validates the activatable postage and then deactivates the activatable postage by updating the central database.