It depends on how you see your business developing. If your customers are going to pay via BACs or similar, you won't want to change bank account details midstream. Selling your business might go better if you are able to pass over the bank account as well. Also you might want to be building up your profile with the bank. If you join the Federation of Small Businesses you can get free banking through the Co-op bank. I have a Santander account that I opened when they were offering free banking for life, not available anymore. Hope it goes well for you.