https://secure.ybonline.co.uk/interest-rates/business/business-banking-tariff
https://www.tsb.co.uk/business/accounts/compare-business-tariffs/
It’s usually around 30p per electronic transaction, if you have a cash based account. If you have an electronic account (where banks differentiate), you get charged higher fees for paying in or withdrawing cash.
Essentially, whatever they can slap a charge on, they will.
Also worth pointing out, whilst we’re talking about cheques, that there are business banking charges for depositing cheques in most cases.