£9billion in old paper bank notes across the UK still remain to be cashed in, despite them losing their status as legal tender last year.
However, all isn't lost, as there's still time to swap the old currency for the newer plastic notes. Paper £20 and £50 notes became the last old currencies to lose their legal tender status across the UK on September 30, 2022 - meaning that you can't go to the shop and spend them anymore.
The Mirror reports that these old paper notes were of course phased out by polymer plastic notes, due to their increased stability and structure - as well as being much harder to counterfeit. But according to a data study from the BBC through a Freedom of Information request made to the Bank of England - around 455million paper notes remain in circulation.
