Remember bank notes increase in size, £50 notes are bigger than £20, £20 are bigger than £10 and so on…
I’ve found a counterfeit note, what do I do?
It is a criminal offence to hold onto or pass on counterfeit notes. If you suspect a note is counterfeit, take it to the police as soon as possible. They will give you a receipt and it will be sent off for testing, if your note is found to be legitimate then you will be given a refund. If you received the cash as part of payment for an item then read this.
The £20 note is most commonly counterfeited so here is what to look for: