Things changed when the PATRIOT act was passed. You need to *prove* that the business name is yours – and in the case of a sole proprietorship, that means you have to go through the hassle of an "assumed name" filing with the state.

The one I’m with allows two names per personal account so I can do a business name (a DBA) on it. The other bank I was with required ANY business name to be a separate account from a normal personal account–mostly because they knew that large numbers of checks would likely be coming through it and a personal account they limit the number of checks you can deposit per month at something like 21.

Unfortunately even a small business ‘business’ account can cost you with fees (a fee to set it up) and it’d be structured differently than a personal savings or checking account. I didn’t like how my one bank did it so I went to a different bank and didn’t have any problem there.

So the answer is yes and no, depending on the bank itself and their rules.