Royal Mail will allow customers to swap stamps for the equivalent value of new barcoded ones.
The postal group is moving to barcoded stamps as part of its modernisation drive, which also includes added security features and new services.
As part of the drive, Royal Mail has launched a scheme that will let customers swap regular stamps for barcoded ones.
Non-barcoded stamps will remain valid to use until February 2023.
The development will let customers watch and share videos by scanning the barcoded stamps in the Royal Mail App.
Eligible stamps are the regular first and second class “everyday” stamps.
Nick Landon, Royal Mail’s chief commercial officer, said: “As we move to this exciting new era of barcoded stamps, please check your kitchen drawers, wallets and purses for older non-barcoded stamps and make sure you use them up by 31 January 2023.
“If you can’t use them up by then, we have set up a swap out scheme as a simple way to swap your old stamps for our new, digitally-enabled ones. Welcome to the new world of barcoded stamps.”