Customers have just a couple of weeks left to use or swap their old stamps after Royal Mail introduced barcoded stamps last year to improve security and efficiency as part of the company’s modernisation drive.

In January, Royal Mail extended the deadline by six months for using non-barcoded stamps, following the introduction of barcoded stamps in February 2022. As a result, stamps featuring the late Queen’s profile that don’t have barcodes will soon be invalid.

You can swap old for new by sending them off - the Post Office (if you can find one) has envelopes.

edit: fixing information about swapping