[theold]

While the majority of paper £20 and £50 banknotes in circulation have been replaced with new polymer versions, there are still over £6 billion worth of paper £20 featuring the economist Adam Smith, and over £8 billion worth of paper £50 banknotes featuring the engineers Boulton and Watt, in circulation.

The Bank of England will be withdrawing legal tender status of paper £20 and £50 banknotes after 30 September 2022. After this date, paper £20 and £50 banknotes will no longer be legal tender.

https://www.bankofengland.co.uk/news/202...-banknotes