When you can change 20 pound note?

Answer 1

The 'old style'Elgar 20 Pound Note was officially withdrawn on 30 June 2010. The new notes depicting the Scotsman Adam Smith are now the only ones that are legal tender. The old style notes can be exchanged for the new ones free of charge from any UK bank.

You need to have an account at the bank you take them to to be changed up otherwise they will refuse. You can send or take them to the Bank of England in Threadneedle St, London to be changed though.

Answer 2

The Bank of England advises -

Some banks, building societies, and Post Offices may still accept the most recent of the notes withdrawn from circulation for deposit to customer accounts or exchange for current series notes. However, agreeing to exchange these notes is at the discretion of the individual institution. and

All Bank of England notes from which legal tender status has been withdrawn remain payable at face value forever at the Bank of England in London. Any such notes may be presented for payment either in person during business hours, or sent to us by post.