Here is your quick checklist. Look at the stamp closely. Does it have a small, square, two-dimensional barcode next to the Queen’s head? Yes? Then it’s valid. No barcode? Then it’s from the old era, and you can’t mail it anymore.
It’s like checking the date on a carton of milk, but much more fun. You might find a little treasure in your drawer. “Look, a fully functioning Queen stamp with barcode!”
2nd Class Stamp Photos and Premium High Res Pictures - Getty Images
This is actually a neat thing for collectors. These stamps are a distinct, short-lived design. They represent the final chapter of the Queen’s reign printed with the new system. That’s kind of a big deal for a tiny piece of paper.
What Happened to the Old Queen Stamps (Without Barcodes)?
If you have a pile of non-barcoded Queen stamps, don’t throw them away in anger. The Royal Mail offered a “Swap Out” program. You could exchange your old stamps for new barcoded ones. That program ended in July 2026, though some exceptions apply for special issues.
But for the barcoded ones? No swap needed. You just lick and stick. So that stamp in your drawer is a working piece of history. It’s like finding a cassette tape that still plays in your modern sound system.
