I am in the process of switching bank accounts. My salary has been paid into the new account but the process of changing everything over isn't complete as yet as my old account is still open and functioning. I don't have enough money in the old account to cover the mortgage which comes off on the 1st of the month, does anyone know if I should put enough cash in the old account to cover mortgage just in case the switching process isn't complete by the 1st? Or given it's the banks responsibility to switch everything over, would they be OK if I 'missed' the next mortgage payment? (ie didn't charge me or give me bad credit rating)