Paper £20 and £50 notes will no longer be accepted as legal tender after today 30th September 2022. The last day for spending paper £20 and £50 notes is therefore today.
However, your money will not be lost. Many banks will accept withdrawn notes as deposits from customers. The Post Office may also accept old paper notes as a deposit into any bank account you can access at the Post Office.
Alternatively you can swap paper notes for polymer money at specific Post Office branches.