It really depends on the business you are starting, whether or not you are experienced in that business, and most important: TIMING. I made $114,000 my first year, but that's after 16 years in the business. On the other hand, my brother in law did not fair nearly so well running a couple of franchise sandwich shops - but then, that was not his business before hand either. I have a friend who has a business as a concierge - don't know how well he's doing, but it's not full time, and it is also not what he's been doing for the last 20 years. The best money is in what you're already doing, provided you do it well, have the contacts, and a crucial support system (like a key client that is basically your benefactor).