Mistaken bank transfer: what a business should do after paying the wrong account

A transfer sent to the wrong account is not automatically a fraud case. The business may have entered an incorrect account number, used an old supplier template or selected the wrong beneficiary. The recovery route depends on what went wrong, how quickly the error is reported and whether the receiving account still holds the money.

Report the payment error as soon as it is discovered

Contact the sending bank through an official channel immediately and state that the payment was sent to the wrong beneficiary or account details. Provide the date, amount, payment reference, intended payee and the account details actually used. Ask the bank to begin its recovery or recall process and obtain a case reference.

Speed matters because a mistaken payment is easier to recover while the money is still in the receiving account. If the error is identified minutes after a Faster Payment rather than several days later, the receiving provider has a better chance of locating and restricting the funds before they are withdrawn or transferred onward.

The bank normally executes the payment using the unique identifier you supplied

The Payment Services Regulations 2017 say that where the payment service user supplies an incorrect unique identifier, the provider is not normally liable for defective execution simply because the money followed that incorrect identifier. For a UK bank transfer, the relevant identifiers can include the sort code and account number or other account details required by the payment route.

This is why a payment can reach the wrong person even when the business entered the intended supplier name in its own accounting system. Confirmation of Payee can reduce the risk before payment, but the finance team still needs to check account details and any warning shown by the bank before releasing a material transfer.

The sending provider must make reasonable efforts to recover funds sent using a wrong identifier

The same Regulations require the payer's provider to make reasonable efforts to recover funds where the user supplied an incorrect unique identifier. The receiving provider must cooperate by giving the sending provider relevant information for collection of the money. The sending provider may be able to charge a recovery fee where the framework contract allows it.

Recovery is not a guarantee that the money will come back. The recipient may have spent the funds, the account may be empty or the case may require further legal action. If the sending provider cannot recover the money, the Regulations say that, on written request, it must provide the payer with available relevant information so the payer can pursue repayment.

Build one record showing exactly how the payment instruction was created

Save the supplier invoice, payment approval, beneficiary template, Confirmation of Payee result, bank confirmation and any communication that led to the account details being used. The Financial Ombudsman says disputed-payment cases can require the original payment instruction, where the money went, attempts to reverse or claw back the transfer, account statements and provider correspondence.

Separate a typing error from a fraud-induced change. If the finance employee transposed two digits, the case is a mistaken payment. If the details came from a fake supplier email, the incident may also involve APP fraud. That distinction can affect complaint and reimbursement routes, so record the source of the bank details rather than simply calling every wrong payment a scam.

Protect the real supplier relationship while the recovery process runs

If the intended supplier has not been paid, contact them quickly and explain the situation. Do not assume the bank's recovery process cancels the commercial obligation. The invoice may still be due, and the supplier may be entitled to suspend delivery or charge late-payment interest under the contract.

Decide whether the business has enough liquidity to pay the genuine supplier before the mistaken money is recovered. For a £40,000 error, paying twice temporarily can create a serious working-capital gap. Escalate the decision to finance leadership rather than leaving an accounts-payable employee to choose between supplier default and a second large transfer.

Fix the beneficiary process rather than blaming one employee

Review why the payment was possible. Common causes include duplicate supplier names, old bank templates, manually typed account numbers, ignored Confirmation of Payee warnings and weak approval of bank-detail changes. Use verified beneficiary templates and restrict who can edit them.

For material payments, separate beneficiary creation from payment approval. Require an independent check when an existing supplier changes bank details, and keep a trusted contact number outside the change request. A well-designed payment process should make the common human error difficult to turn into a large cash loss.