Well you can start a business with cash but you do have to file paper work out the ass and also have some type of explanation for the money (don't worry if you tell them you got it as a loan from a family member they would probably leave it alone.The bank on the other hand sounds off to the Gov. just in case you didn't pay tax on it, or worse.) The best way to do it is just get a loan of the amount you have (Not getting a full amount bc of interest). If you do that then you draw less attention to your self. I have been thinking about the same thing for a while. Good luck man I hope I helped.:thumbsup: