Brits have been told to keep an eye out for a major change to the banknotes they receive from this week.

Notes carrying the portrait of King Charles III will be issued for the first time on June 5, the Bank of England confirmed.

The portrait of Charles will appear on existing designs of all four banknotes (£5, £10, £20 and £50), with no other changes to the existing designs.

Polymer banknotes featuring the portrait of the late Queen Elizabeth II will remain legal tender, and will co-circulate alongside the King Charles III notes.

The Herald: The portrait of the King will appear on existing designs of all four banknotes, with no other changes to the existing designsThe portrait of the King will appear on existing designs of all four banknotes, with no other changes to the existing designs (Image: Bank of England/PA Wire)

The new banknotes will only be printed to replace those that are worn, and to meet any overall increase in demand for banknotes.

The Bank of England said its approach is in line with guidance from the Royal Household, to minimise the environmental and financial impact of this change.

This means that people will start to see the new King Charles banknotes in their wallets very gradually.

Images of the new King Charles banknotes were first unveiled in December 2022.

The King’s image will appear on the front of the banknotes, as well as in cameo in the see-through security window.

Although the notes that enter circulation on June 5 will feature a new portrait of the monarch, the reverse side of each note will remain unchanged.

The current series of banknotes features Sir Winston Churchill on the £5, Jane Austen on the £10, JMW Turner on the £20 and Alan Turing on the £50.

People will be able to exchange Queen Elizabeth II banknotes for King Charles banknotes through the Bank of England, although certain restrictions will apply. The Bank said further details about this will be provided closer to the time.

Coins bearing the official effigy of the King first appeared in circulation in post offices around the UK from December 2022.

The first Bank of England note to feature Queen Elizabeth II’s portrait was a £1 note issued in 1960.