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!


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

– Find and identify the coins in their pocket
– Collect and track the coins they have
– Swap their spare coins with other Change Checkers

Change Checker Web App Banner 2 Amends 1024x233 1 1024x233 - Your January 2019 Scarcity Index update!

Sign up today at: www.changechecker.org/app

Basingstoke 

  • NatWest, 3 London Street, Old Market Square, Basingstoke, RG21 7NS

Bath

  • HSBC, 41 Southgate, Bath, BA1 1TN
  • NatWest, 8-9 Quiet Street, Bath, BA1 2JN

Birmingham 

  • HSBC, 130 New Street, Birmingham, B2 4JU 
  • Lloyds Bank, 36-38 New Street, Birmingham, B2 4LP 
  • NatWest, 144 New Street, Birmingham, B2 4NY 
  • Santander, Unit 6, Caxton Gate, Corporation Street, Birmingham, B2 4LP 
  • TSB, 134 New Street, Birmingham, B2 4NS 
  • Virgin Money, Temple Point, 1 Temple Row, Birmingham, B1 5YB

Bradford 

  • Santander, 9 Nelson Street, Bradford, BD1 5AN 

Bristol

  • Eurochange, Cribbs Causeway, Bristol, BS34 5QT

Cwmbran

  • NM Money, 15 South Walk, Cwmbran, NP44 1PU

Edinburgh

  • TSB, 28 Hanover Street, Edinburgh, EH2 2DS 

Leeds 

  • HSBC, 33 Park Row, Leeds, LS1 1LD 
  • Santander, PR Work Café, 10-12 Park Row, Leeds, LS1 5HD 
  • Yorkshire Bank, 94-96 Briggate, Leeds, LS1 6NP

Leicester 

  • Santander, Carlton Park, King Edward Avenue, Narborough, Leicester, LE19 0AL 

Liverpool 

  • Santander, 45 Lord Street, Liverpool, L2 6PB 
  • TSB, 81-83 Lord Street, Liverpool, L2 6PG

London 

  • Barclays, 2 Churchill Place, Canary Wharf, London, E14 5RB 
  • Barry’s Food & Wine, 149 Hoxton Street, London, N1 6PJ
  • HSBC, 165 Fleet Street, London, EC4A 2DY 
  • Halifax, 118-132 New Oxford Street, London, WC1A 1HL 
  • NatWest, 1 Princes Street, London, EC2R 8BP 
  • NatWest, 34 Henrietta Street, London, WC2E 8NL 
  • NatWest, 10 Southwark Street, London, SE1 1TJ 
  • Post Office, 52 Blackfriars Road, London, SE1 8NN 
  • Post Office, 39-41 Farringdon Road, London, EC1M 3JB 
  • Post Office, 11 White Kennet Street, Houndsditch, London, E1 7BS 
  • Post Office, 19a Borough High Street, London, SE1 9SF 
  • Post Office, 125-131 Westminster Bridge Road, London, SE1 7HJ 
  • Santander, 48-54 Moorgate, London, EC2R 6EJ 
  • Santander, 164-167 Tottenham Court Road, London, W1T 7JE 
  • Santander, 2 Triton Square, Regents Place, London, NW1 3AN 
  • The Cooperative Food, 185 Old Street, Shoreditch, London, EC1V 9NP 
  • TSB, 55 Bow Bells House, Cheapside, London, EC2V 6AT 
  • Virgin Money, 154-158 Kensington High Street, London, W8 7RL

Manchester

  • Lloyds Bank, 42-46 Market Street, Manchester, M1 1PW 
  • NatWest, 1 Hardman Blvd, Manchester, M3 3AQ 
  • TSB, 21 Market Street, Manchester, M1 1WR 

Margate 

  • Santander, 110-112 High Street, Margate, Kent, CT9 1JR 

Milton Keynes 

  • Santander, 201 Grafton Gate East, Milton Keynes, MK9 1AN

Newcastle 

  • Santander, 112-118 Northumberland Street, Newcastle, NE1 7DG 

Salford

  • Barclays, Unit 2 Blue, MediaCityUK, Salford, M50 2AD 
  • Lowry Outlet Mall, The Lowry Designer Outlet, Salford Quays, M50 3AH

Sheffield 

  • Post Office, 12 Ellesemere Road, Sheffield, S4 7JB 
  • Yorkshire Bank, Fargate, Sheffield, S1 1LL

Swindon 

  • Nationwide, Nationwide House, Pipers Way, Swindon, SN3 1TA 

Wales 

  • Post Office, 56-58 Oxford Street, Mountain Ash, Mid Glamorgan, CF45 3HB 
  • Santander, 5-7 Queen Street, Cardiff, South Glamorgan, CF10 2AF