> It is like this in most western countries. This is not the case in the USA. There is no general federal legal requirement to register a business or obtain a

> It is like this in most western countries. This is not the case in the USA. There is no general federal legal requirement to register a business or obtain a business license in order to sell things. However, there are specific industries for which business licenses are required (at any of the federal, state and local levels) and forming an LLC might help personal assets if you are sued.