King Charles III Banknotes – From print to pocket

The first King Charles III banknotes entered circulation on 5th June 2024, read on to discover their journey from print to pocket…

King Charles III Banknotes
Credit: Bank of England


King Charles III banknotes finally enter circulation

On 5th June 2024, all denominations of UK banknotes featuring King Charles III entered circulation.

You can find out everything you need to know about the new notes, including details about their special security features and how to get your hands on one here >>

*** April 2024 – UPDATE ***

The King is presented with the first low numbered banknote of each denomination

On 9th April 2024, King Charles was presented with new banknotes of each denomination featuring his image. The portrait on the new notes is based on an engraving of a picture of His Majesty taken in 2013.

The governor of the Bank of England, Andrew Bailey and chief cashier, Sarah John visited His Majesty at Buckingham Palace where the new notes were presented. Mr Bailey told The King it was a “big moment” as previously, it had been only his mother Queen Elizabeth II who had appeared on British banknotes.

King Charles III is presented with the first low numbered banknotes bearing his image
Credit: POOL/AFP via Getty Images

The King was presented with some of the first low numbered notes of each denomination, with the following serial numbers:

£5 CA 01 000001
£10 HB 01 000001
£20 EH 01 000001
£50 AJ 01 000001

Did you know? The letters at the beginning of a banknote’s serial number indicate its position on the sheet on which it’s printed. The 6 numbers that follow the letters refer to the number on the sheet the note is printed on.

*** February 2024 – UPDATE ***

CONFIRMED – King Charles III banknotes to enter circulation from June 2024

The Bank of England have confirmed that new banknotes featuring King Charles III would begin entering circulation from 5th June 2024.

We can expect to see new £5, £10, £20 and £50 notes featuring The King’s portrait on the obverse, however the reverse designs will remain unchanged. Currently, banknote reverse designs feature Sir Winston Churchill, Jane Austen, JMW Turner and Alan Turing (from the £5 to £50 respectively).

Production of the new King Charles III £10 banknotes 
Credit: Bank of England Flickr
Production of the new King Charles III £10 banknotes
Credit: Bank of England Flickr

The new notes will only be issued when there is sufficient demand or to replace worn or damaged older notes featuring Queen Elizabeth II – meaning that both monarchs will co-circulate on UK banknotes for the foreseeable future. The Queen Elizabeth II notes that are already in circulation will still be accepted in shops even after the new notes start to enter circulation.

Did you know? There are approximately 4.7 billion Queen Elizabeth II banknotes currently in circulation, worth an estimated £82 billion!

*** January 2024 – UPDATE ***

The first King Charles III banknotes go on display in the Bank of England Museum

New King Charles III banknotes are due to go on display as part of a special exhibition in The Bank of England Museum. Whilst we’ve seen some images of the new polymer notes featuring The King, this will be the first opportunity to see the them in person before they go into circulation later in the year.

The Future of Money exhibition will open in the Bank of England Museum on 28th February
Credit: Bank of England Museum

As well as the new banknotes, the Future of Money exhibition will feature digital currencies, crypto assets, the increasing role of AI and explore the lifespan of cash.

The free exhibition will open in the Bank of England Museum on 28th February and will run until September 2025.

*** November 2023 – UPDATE ***

The Bank of England begin printing millions of King Charles III banknotes

The Bank of England have announced that banknotes featuring King Charles III are being printed at a rate of 6 million in 24 hours. However despite this, the new notes won’t begin circulating until mid-2024.

King Charles III banknotes in production
Credit: Bank of England Flickr
King Charles III banknotes in production
Credit: Bank of England Flickr

The delay in new notes entering circulation is caused by machines such as self service tills not being able to recognise the new image.

The Bank of England’s chief cashier, Sarah John, said “There is a lot to do to ensure that machines used up and down the country can accept the banknotes. They all need to be adapted to recognise the new design, with software updates, and that takes months and months. Otherwise, we will be putting a banknote out there that people simply would not be able to use.”

A more sustainable transition

Taking guidance from the Royal Household, the new banknotes will only be issued to replace worn or damaged Queen Elizabeth II notes, consequently two monarchs’ portraits will co-circulate for some time!

This transition phase will minimise the environmental and financial impact of the change, in keeping with the King’s vision for a more sustainable future.

His Majesty’s portrait will now appear on the front of the notes, however there will be no changes to the current reverse designs:

  • Winston Churchill (£5)
  • Jane Austen (£10)
  • JMW Turner (£20)
  • Alan Turing (£50)
King Charles III £5 Banknote
King Charles III £5 Banknote
King Charles III £10 Banknote
King Charles III £10 Banknote
King Charles III £20 Banknote
King Charles III £20 Banknote
King Charles III £50 Banknote
King Charles III £50 Banknote

But, any serious collector knows that it’s not just the design you should be looking out for…

King Charles III Banknotes – ‘Rare’ Serial Numbers to look for


Remember the excitement when the first polymer £5 note was issued?

I’m willing to bet that every single person in the country checked theirs at some point to see if they were lucky enough to find one with the prefix AA01.

AA01 serial number on the Polymer £5 note.
Could King Charles III's banknotes be as in demand?
AA01 serial number on the Polymer £5 note.

The annual Bank Of England charity auction held at Spink and Son Ltd in London auctioned off a Queen Elizabeth II polymer £5 note with the serial number AA01 000017 for £4,150.

And the following year, a Jane Austen Polymer £10 note with the serial number AA01 000010 sold for a staggering £7,200 – over double the guide price!

As King Charles III becomes only the second monarch to appear on circulating Bank of England notes, i’m expecting a similar level of demand for the first run of AA01 notes during His Majesty’s reign.


Considered collectable due to the machine gun connotations, polymer notes with the prefix AK47 were thought to be worth tens of thousands of pounds following the new £5 release in 2016.

This idea emerged after a £5 banknote with the prefix AK47 fetched a winning bid of £80,100 on eBay.

The seller must have been overjoyed with the jackpot amount but unfortunately the buyer had no intention of paying up.

Polymer £5 with AK47 serial number. eBay listing on 13th October 2016) showing £65,901.00 asking price.
Could the King Charles III banknotes be worth a similar amount?
Polymer £5 with AK47 serial number. eBay listing on 13th October 2016)

Continue learning about ‘rare’ serial numbers to look out for >>

The first King Charles III 50p Coin

King Charles III 50p – now in circulation.

The first coin bearing the portrait of King Charles III entered circulation in December 2022 – have you found on in your change yet? Use our helpful collector map to see where in the UK they’re being spotted to help you hunt one down >>

Join our Community Group of Facebook to swap with other collectors!

Swap, learn, and share with other collectors on the only official Change Checker Facebook group >>

How to spot a counterfeit banknote!

In 1725, printed banknotes were first introduced in the UK, with the purpose of fixed denominations. The £20 banknote came first and following a shortage of metallic currency during the Seven Years’ War in 1759, £10 and £15 notes were issued. 

The £5 note was the last to be introduced in 1793. But since their introduction, banknotes have been subject to fraudulent behaviour, so much so, additional banknotes have been executed partly to make forgery of such more difficult. 

Fraudulent notes are also called ‘counterfeit banknotes’ and although less and less are going into circulation — with less than 1 in 40,000 banknotes being counterfeit in 2021 — it’s still an important topic to discuss!

Although polymer banknotes are a lot harder to replicate than the traditional paper ones, you should still check your notes when you receive them. But the questions is, how do you spot a counterfeit banknote? 


For every polymer banknote, a good starting point is to look at its size.

The higher the value, the larger it is. Here we can see the approximate sizes of the £5, £10 and £20 polymer banknotes:

The sizes of the £5, £10, and £20 polymer banknotes in comparison to one another.
The sizes of the £5, £10, and £20 polymer banknotes in comparison to one another.

Security Features

Crucially, you should always check your polymer banknotes for the following key security features:

Changing hologram:

  • All polymer notes when tilted from side to side and up and down, should feature word changes within their holograms.
  • For the £5 banknote, the words should change between ‘Five’ and ‘Pounds’, the £10 banknote between ‘Ten’ and ‘Pounds’ and so on. 

See-through windows:

  • Each banknote of denomination has a metallic image over the see-through window on it.
  • Both the £5 and £10 polymer notes have gold foil on the front of the note within this part and silver on the back.
  • The £20 note has a blue and gold foil on the front of the note for the metallic image and silver on the back.
  • Lastly, the £50 note has gold and green foil on the front and silver on the back.

Feel of polymer and raised print:

  • Polymer is a thin and flexible material so check that the material of your banknote feels this way.
  • On each denomination banknote as well, the words ‘Bank of England’ should feel raised.

Foil patches:

  • Each banknote denomination will have a different foil patch on it.
  • For the £5 note, this is a green foil patch — it is circular and spells ‘BLENHEIM’ to commemorate where Churchill was born.
  • The £10 note has a copper foil patch, and this is shaped as a book.
  • Check it contains the letters ‘JA’, in tribute to Jane Austen.
  • A purple foil patch shaped in a circle with a ‘T’ at its centre, to represent JMW Turner, is imprinted on the £20 note and lastly, a metallic red foil patch can be found on the £50 note and contains the letters ‘AT’ for Alan Turing.
  • The patches can all be located behind the silver crown on the front of the notes.

The queen’s portrait in the see-through window:

  • The Queen’s portrait which is printed within the see-through window can be found on all the banknotes with the respective denomination and the words ‘Bank of England’ printed twice.
  • For example, on the £5 note the inscription ‘£5 Bank of England’ will be printed twice around the windows edge.

This is a just a small selection of the security features that you can find on your polymer banknote. Can you name some of the other features? Let us know in the comments below!

Counterfeit banknotes have no monetary value and cannot be reimbursed. The best thing to do if you encounter a counterfeit banknote is take it to your nearest police station.

They will ask you to fill out a form and once taken from you, will send the suspect note(s) to the National Crime Agency and if found to be counterfeit, to the Bank of England for further examination. 

If you’re interested in coin collecting, our Change Checker web app is completely free to use and allows users to:

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£19bn in old UK banknotes and coins not cashed in!

£18.9bn worth of paper banknotes and round pounds remain in circulation, with over 113 million of these being £5 notes! Despite it being nearly five years since the paper £5 note lost its legal tender status*, it seems people are holding on them.

In fact, you might just have one in your pocket/wallet/down the back of the sofa right now!

Whilst the paper £10 and £5 notes have been withdrawn from circulation, the £20 and £50 paper banknotes will hold their legal tender status until 30 September 2022.

According to the Bank of England, 775 million paper banknotes remain in circulation:

  • Paper £5 notes in circulation: 113 million
  • Paper £10 notes in circulation: 73 million
  • Paper £20 notes in circulation: 360 million
  • Paper £50 notes in circulation: 209 million

That’s a lot of banknotes!

*Whilst the paper £5 and £20 notes are no longer legal tender, they will always be exchanged by the Bank of England for their face value.

There are also supposedly £105m of old round pound coins in circulation, according to the Royal Mint.

After more than 30 years in the nation’s pockets, the familiar round £1 coin was replaced with an all new, 12-sided £1 coin in 2017, in a bid to crack down on counterfeiting.

It lost its legal tender status at midnight on 15 October 2017 and the Royal Mint asked the public to return their round pounds as they phased in the new 12-sided coin.

However, out of 1.6 billion round pounds to be returned, about 1.45 million were counterfeits!

The UK’s 12-sided £1 coin is described by the Royal Mint as the ‘most secure in the world’, with a string of anti-counterfeiting details. Find out more about the security details of this coin here!

Round pounds can still be deposited at high street banks – but can no longer be spent in shops.

Have you held on to your round pounds or paper notes? Let us know in the comments below!

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