Do you or someone you know have a tin under the bed with a cash stash.
After 30 September, paper £20 and £50 banknotes will no longer be legal tender. Anyone who still has old paper notes needs to use them or deposit them at their bank or a Post Office before that date.
In total, there are over £14bn worth of old paper notes still in circulation with an estimated £6bn worth of paper £20 notes featuring the economist Adam Smith, and over £8bn worth of paper £50 banknotes featuring the engineers Boulton and Watt. That is more than 300 million individual £20 banknotes, and 160 million paper £50 banknotes.
It is one year since the Bank issued the polymer £50 banknote featuring the scientist Alan Turing, on what would have been his 109th birthday.