In 2019, The Bank of England revealed Alan Turing as the new face of the £50 banknote.

In their search to find an eminent British scientist to feature on the £50 note, a total of 227,299 nominations were sent to The Bank of England. 989 eligible characters were narrowed down to a shortlist of just 12 before Turing was finally selected.

Change Checker is so excited to reveal that today the design of this BRAND NEW £50 note has been officially confirmed by The Bank of England.

Source: Bank of England.

In keeping with Turing’s code-breaking legacy, this brand new £50 has been declared as the most secure yet.

What features on the new £50 note?

UK £50 Banknote. Source: The Bank of England.

This brand new banknote is FULL of exciting features. Including:

  • A photo of Turing from 1951 which is part of the National Portrait Gallery’s collection
  • A table and mathematical formulae from Turing’s 1936 paper “On Computable Numbers, with an application to the Entscheidungsproblem”
  • A design of Turing’s trial model of his famous Automatic Computing Engine (ACE) Pilot Machine
  • Technical drawings for the British Bombe, one of the primary tools used to break Enigma-enciphered messages
  • A quote from Turing, from an interview in The Times newspaper (June 1949): “This is only a foretaste of what is to come, and only the shadow of what is going to be”
  • His signature from the visitor’s book at Max Newman’s House in 1947 which is on display at Bletchley Park
  • Ticker tape depicting Alan Turing’s birth date (23 June 1912) in binary code.

In addition to these amazing design features, there are of course a series of security features, similar to those we’ve seen on our £5, £10, and £20 polymer notes, including holograms and see-through windows.

GCHQ Collaboration

 In recognition of Turing’s code-breaking expertise, the Bank of England have collaborated with GCHQ on the intelligence and cyber agency’s toughest puzzle ever – based on the Turing £50 bank note design.

GCHQ’s Turing Challenge is a set of 12 puzzles that have been put together by intelligence staff at GCHQ, where problem solving and a diverse mix of minds are at the heart of its work to help protect the UK from increasingly complex threats

Who was Alan Turing and why is he being featured on a £50 note?

Alan Turing Aged 16 – Credit: TuringArchive.org

Alan Turing was most famously known for accelerating Allied efforts to read German Naval messages enciphered with the Enigma machine.

His work is said to have been key to shortening World War Two and saving millions of lives.

In addition to his work during World War Two, Turing played a pivotal role in the development of early computers, first at the National Physical Laboratory and later at the University of Manchester.

In 2013, he was given a posthumous royal pardon for his 1952 conviction for gross indecency. 

Speaking of the new note, Andrew Bailey, the governor of the Bank of England, said: “Turing was a leading mathematician, developmental biologist, and a pioneer in the field of computer science. By placing him on our new polymer £50 banknote, we are celebrating his achievements, and the values he symbolises.”

Polymer Notes

This brand new £50 note is the last in the Bank of England’s collection to switch from paper to polymer, following the popularity of the polymer £20, £10 and £5 notes.

The banknote will enter circulation on 23 June, which would have been the mathematician’s birthday.

Alan Turing £50 note voted as Change Checker’s favourite polymer note!

As the brand new £50 note is the last in the Bank of England’s collection to switch from paper to polymer, we asked you to vote for your favourite polymer note.

The results are in!

The Alan Turing £50 has been revealed as Change Checkers’ favourite polymer banknote, taking over 40% of the votes!

We’re certain collectors will be eager to add this banknote to their collections when it’s released later in the year. Will you? Let us know in the comments below!


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8 Comments

  1. Susan B on March 28, 2021 at 10:43 am

    He was a courageous prime minister who brought us through the war. He never gave up and we wouldn’t be where we are today without him.

  2. Joseph poole on March 27, 2021 at 7:30 pm

    The country needs a unique 50 pound note that cannot be duplicated and the people can start using them again

  3. Jane on March 26, 2021 at 3:34 am

    Turing wins the note vote for me! Always loved £50 note anyway, he was a true, but sadly unsung hero in his day, and I will look forward to adding to my collection in June. Collecting has been a great support and cause for smiles over the last year, especially for my 81 year old mum!

  4. Paul Carew on March 25, 2021 at 5:42 pm

    About time this genius was given proper respect and adulation for his great mind and inventions.

  5. Roy Walker on March 25, 2021 at 4:28 pm

    Have a Large print of J.W Turner on my wall that’s featured on the bank note

  6. Peter Croft. on March 25, 2021 at 2:13 pm

    Alan Turings efforts shortened WW2 and saved millions of lives, an excellent choice for him to be on the new £50 Pound note.

  7. Michael Heeley on March 25, 2021 at 12:38 pm

    Unique at the time as was Churchill

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