You now have until 31 July 2023 to use 1st and 2nd class stamps without barcodes after a Royal Mail U-turn – here's what you need to know

Which stamps are still OK to use after July 2023? – SuperLucky

Royal Mail extends deadline to use up non-barcoded stamps to July

When do old stamps go out of date? Royal Mail deadline and how to

Which stamps are still OK to use after July 2023? – SuperLucky

Whats The Barcode For? NEW Royal Mail Stamps 2023 - when to use

What can I do with old first and second class stamps and when do

Old Stamps: Can you still use them?

You can no longer use stamps without a barcode - Saga Exceptional

Did I mess up? : r/CasualUK

Can I still use old first and second-class stamps? Royal Mail