Maybe a stupid question but I never understand how you practically make such transition as you have to put (income) taxed money in it but you have to pay tax again if you get it out?
(of course this doesn't apply to a special case where you "fill" the company with salary from a consultancy job (if this is even possible))
You are allowed to be an employee on the payroll of your own company. Getting
a 1099 already establishes a trader/investor as self employed, which can be wrapped up in the mighty I.R.S tax benefits of incorporation.