The startup last year announced plans to join the image clearing system, a move that would have enabled customers to remotely deposit cheques into their account by taking a snapshot of the paper instrument on their mobile camera.

Monzo is one of a clutch of banks bidding for funding from the RBS bail-out scheme, and is working overtime to deliver a credible model for a business banking service.

In stopping work on cheque image clearing, the app-only bank says that fewer than than 0.1% of its digitally-savvy customers have ever deposited a cheque.

James Berry, payment scheme manager, Monzo, describes the pull-back as a "pause", but admits that the bank has no room in its calendar to pencil in a future date.

"As with most things at Monzo, we’ll revisit it at a later date, armed with a bit more data and re-assess the impact this will have against any other projects we’ve got coming up."

Invoice scams take place when fraudsters trick businesses into transferring money by posing as legitimate payees. £92.7 million was lost by businesses to such scams in 2018, according to UK Finance’s latest Fraud the Facts 2018 report. There were 3,280 invoice and mandate scam cases involving businesses over the year, with an average loss per case of over £28,000. £29.6 million of the money lost to this type of fraud was returned to business customers.

Separate research from UK Finance’s Business Payments Survey has found that over four in ten (43 per cent) businesses were unaware of the existence of invoice fraud. The survey of 1,500 firms across the UK found that:

Over half (55 per cent) of sole traders were aware of the threat of invoice fraud compared to two-thirds (68 per cent) of small business and over four in five (84 per cent) large businesses.
Smaller firms were also less likely to have experienced invoice fraud, with around one in twenty (six per cent) of sole traders having been targeted compared to one in four (26 per cent) larger firms.
Only one in seven (14 per cent) sole traders have taken steps to protect themselves from these kinds of scams, compared to around half (47 per cent) of small businesses and two thirds (63 per cent) of large firms.

Katy Worobec, Managing Director of Economic Crime at UK Finance, said:

“Invoice fraud could happen to businesses of all sizes. It’s vital that all employees are trained to identify potentially fraudulent transactions and follow the advice of our Take Five to Stop Fraud campaign.

“The gangs behind this type of fraud are increasingly sophisticated and will often get hold of details that allow them to pose convincingly as regular suppliers.

“If a someone contacts you asking for a supplier’s bank account details to be changed, always verify with that supplier separately on the phone or in person, using the contact details you have on file.

“If you suspect you’ve fallen victim to fraud, contact your bank immediately and report it to Action Fraud.”

Invoice fraud involves criminals targeting businesses by posing as a regular supplier and making a request for their bank account details to be changed, often by email. Businesses are then tricked into sending money to an account controlled by the fraudster rather than the genuine supplier. Often the criminals will try to acquire details from businesses, such as the date when regularly payments are due, to make their approach more convincing.

Advice from the Take Five to Stop Fraud campaign on how to stay safe from invoice scams:

Always confirm any bank account details directly with the company either on the telephone or in person before you make a payment or transfer any money.
Criminals can access or alter emails to make them look genuine. Do not use the contact details in an email, instead check the company’s official website or documentation.
If you are making a payment to an account for the first time, transfer a small sum first and then check with the company using known contact details that the payment has been received to check the account details are correct.
Contact your bank straight away if you think you may have fallen victim to an invoice or mandate scam.