Could your King Charles III Banknote be worth £17,000?

Whenever new banknotes are issued, it causes quite a stir in the collecting community, with serious collectors rushing to secure the notes with the lowest serial numbers.

The Bank of England generally hold back some of the notes with the earliest serial numbers, donating them to the monarch, people or institutions that were involved in the development of the note, but others can fetch hefty sums at auction!

Notes under the hammer

Spink & Sons recently held four auctions for each denomination of the new King Charles III banknotes to raise funds for charity, and a whopping £914,127 was raised overall!

A selection of King Charles III Banknotes

The proceeds from the auctions will be shared between 10 charities that have been chosen by the Bank of England:

  • Childhood Trust
  • The Trussell Trust
  • Shout
  • Carers UK
  • Demelza
  • WWF-UK
  • The Brain Tumour Charity
  • London’s Air Ambulance Charity
  • Child Bereavement UK
  • The Samaritans

At the auction for the King Charles III £10 banknotes, a single £10 note with the serial number HB01 000002 sold for an astonishing £17,000!

The £50 banknote auction even broke the record for the highest lot sold in a Bank of England banknote auction. A sheet of 40 £50 banknotes sold for £26,000 – 13 times their face value!

Which serial numbers should you be looking out for?

Whilst the very first banknotes aren’t released into general circulation, there are other serial numbers that are also considered collectable.

JMW Turner £20 Notes

As the polymer £20 note featured JMW Turner on the reverse, some serial numbers matching key dates relating to the painter became highly collectible. For example, 23 041775 represents Turner’s date of birth, whilst 19 121851 relates to his death and 17 751851 would be his birth and death combined.

JMW Turner features on the £20 note.
Image Credit: Bank of England

True Turner fans might also look for 18 381839 representing the date he painted ‘The Fighting Temeraire’ (which featured on the new £20 note) and the date the painting was exhibited at the Royal Academy respectively.

Alan Turing £50 Notes

The £50 note features famous scientist and mathematician, Alan Turing, and similarly to the £20 note, certain serial numbers matching key dates relating to Alan Turing became collectable.

The Polymer £50 note features famous scientist and mathematician, Alan Turing
Image Credit: Bank of England

Serial numbers such as 23 061912 (which represents Turing’s date of birth), 07 061954 (which relates to his death) and 09 071941 (which represents the date that the enigma code was cracked by Turing and his team at Bletchley Park during WW2) are all ones to look out for. .

Others include AK47, due to the machine gun connotations, and 007 which could be desirable to James Bond fans.

The hunt is on!

With this news that King Charles III banknotes have recently sold for much more than face value, the hunt is on to find others with interesting or collectable serial numbers.

If you’ve come across any King Charles III banknotes, let us know in the comments where you found it and whether it’s got an interesting or rare serial number!


Safely store your banknote collection

If you do have any King Charles III banknotes in your collection that you don’t fancy parting with, you can securely store them in the Change Checker Complete Polymer Banknote Collecting Pack, which now includes spaces for King Charles III banknotes!

Secure your Complete Polymer Banknote Collecting Pack >>

Here’s where you can find the new King Charles III Banknotes…

The new King Charles III Banknotes entered circulation on 5th June 2024, and collectors have been rushing to secure the ones with the lowest serial number. The branch manager at Sunderland City Post Office even said people were queueing waiting for their doors to open on 5th June to get their hands on the new notes.

King Charles III £5, £10 and £20 banknotes
King Charles III £5, £10 and £20 banknotes

Only a select few places are stocking the King Charles III banknotes, so far so here’s where you can get your hands on them…

Post Offices 

  • Sunderland City, SR1, 1RR
  • The City of London, EC2M 5TE
  • Moorgate, EC2M 5TE
  • Broadway, SW1H 0AX
  • Houndsditch, E1 7BS
  • Piccadilly Plaza in Manchester, M2 1BB
  • Portsmouth, PO1 1AB
  • Birmingham, B2 4AA
  • Great Massingham, PE31 6HP
  • Tetbury, GL8 8DB
  • Minchinhampton, GL6 9BN
  • Windsor, SL4 1AA
  • Woodstock, OX20 1SP
  • Poundbury, DT1 3AZ

The Bank of England Counter

  • Threadneedle Street, London, EC2R 8AH – The counter will be issuing new King Charles III banknotes from 5th June to 11th June 2024 with a limit of £300 per customer.

Bank of England Postal Exchange Service

  • You can obtain King Charles III banknotes using the Bank of England’s postal exchange service from 5th June to 30th June 2024 with a limit of £300 per customer.
    Apply for postal exchange service here >>

If you’ve managed to get your hands on a King Charles III banknote, let us know where in the comments!


A closer look at the first ever King Charles III Banknotes

Find out everything you need to know about the new banknotes and their special security features by reading our blog >>

How much is my polymer £20 note worth?

*** UPDATE ***

With the impact of Covid-19 meaning less people are using cash, it seems older, paper banknotes aren’t being cashed in! According to reports, 24.5 billion paper banknotes are still out there!

Whilst the paper £20 is technically still legal tender, the new polymer notes have been causing quite a stir in the collecting community.

Back in 2016, the first-ever polymer banknote was issued to replace the paper £5 note, with a cleaner, safer and stronger alternative.

Since then, we’ve seen the introduction of the polymer £10, featuring the portrait of Jane Austen and this year saw the issue of the polymer £20 note, featuring JMW Turner’s portrait.

2020 JMW Turner Polymer £20 Note

We’ve seen the £5 and £10 notes prove incredibly popular with collectors, with particular notes selling on eBay for way over face value!

But what makes a banknote collectable? Well… It’s all to do with serial numbers!

We previously listed the serial numbers that you should be looking out for on the Polymer £20 note, from AA01 to AK-47, and unsurprisingly, some are proving more popular than others, but which ones are likely to fetch the most on the secondary market?

Well, we’ve done the hard work for you by taking a look at which polymer £20 note serial numbers are selling for the most on eBay and which ones you should be looking out for.

How much is the polymer £20 worth?

‘Rare’ polymer £20 banknotes

Recurring numbers

If you’ve been lucky enough to find a £20 note with a series of recurring numbers, like the 777777 serial number, you may want to keep hold of it as we’ve seen some which are currently selling on eBay for around £400 – over 20 times its face value!

Serial number 777777. Credit: eBay

Similar serial numbers have sold for prices within the same range. The 333333 serial number also sold for £400, so it seems collectors everywhere are desperate to get their hands on a recurring number note!

Serial number 333333. Credit: eBay

Another type of serial number you should be keeping an eye out for, is a ‘ladder’. These are serial numbers that have consecutive numbers, like this ‘001122’ note.

Serial number 001122. Credit: eBay

One lucky collector got his hands on this note but at a hefty £529…  Other ladder numbers include ‘012345’ and these could currently fetch you a very respectful £350 on the secondary market!

AA numbers

As with previous polymer note issues, the lower serial numbers for the new £20 have proven popular with collectors, with the current average selling price for the AA notes coming in at £40! That’s two times the note’s face value!

Serial number: AA50. Credit: eBay

At the annual Bank of England charity auction held at Spink and Son Ltd in London the very first polymer note, the £5, with the serial number AA01 000017 auctioned for £4,150! However, this year, the £20 note with serial number AA01 000010 sold for a staggering £7,500, over FOUR times its starting price!

Serial number: AA01 000010 auction. Credit: Spink

AK47

Considered collectable due to the machine gun connotations, polymer notes with the prefix AK47 were thought to be worth well over face value following the new £5 release in 2016.

A quick look at the most recent eBay sold prices for this serial number, on the new £20 note, show that people are willing to pay £11 over its face value!

Serial number AK47. Credit: eBay

What about the £50 note?

The Bank of England will be issuing a new polymer £50 in 2021 featuring the scientist Alan Turing.

£50 Polymer Banknote Concept. Credit: Bank of England

We can’t wait to see the new polymer £50 when it’s issued!

So there we have it, the current selling prices for your polymer £20 notes! With less cash being used during the current climate and therefore less notes in circulation, it’s possible this has added to the collectability of these new polymer £20 notes.

Are you a banknote collector and if so, which notes do you have in your collection? Let us know in the comments below!


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