King Charles III banknotes unveiled Following the death of Queen Elizabeth II, the Bank of England has unveiled new polymer banknotes featuring King Charles III DETAIL FROM NEW £20 NOTE DETAIL FROM EXISTING £20 NOTE Notes featuring Queen remain legal tender New notes will enter circulation from mid-2024 as old ones wear out. Portrait, which also features in see-through security window, is only change to existing designs £5 note features former Prime Minister Winston Churchill on reverse £10: Author Jane Austen on reverse £20: Painter JMW Turner on reverse £50: Mathematician Alan Turing on reverse Sources: Bloomberg, Bank of England Pictures: Bank of England © GRAPHIC NEWS