This is not a difficult thing to do.
To check or amend the bank details used for paying PAYE and NI contributions to HMRC, follow these steps:
Click the Setup menu and select Company Maintenance.
Click the relevant Company to select it, then press the BACS Details button.
View and amend the following details stored under Electronic Payment Details:
Sort Code.
Account No..
Account Name.
📌 Note: You must press Ctrl+M to enter modify mode in order to make changes.