Just in case you don’t think the U.S. Department of Labor is serious about going after misclassification of workers :

Since 2009, the U.S. Department of Labor (DOL) has been cracking down on misclassification of workers. The DOL has just issued another document that confirms its determination to enforce those provisions of the Fair Labor Standards Act and the Internal Revenue Code that require employers to do the following for employees (but theoretically not for independent contractors):