Don’t go to all of the trouble to set up a corporation and then fail to follow corporate guidelines that ensure you’re adequately protected.  One red flag that will have courts ignoring the formation of your corporation is if you combine your personal and business activities, such as accounts and record keeping.

 The corporation must have separate bank accounts from its shareholders.  That means you have to be careful not to deposit business funds directly into your personal checking account. 

 The only time you can mix the business and personal accounts is if you launch a sole proprietorship or partnership, but even then it makes it very confusing to run a business.