You can set up a SEP as long as you are in business for profit, either full time or part time. The business can be run in many forms, including a sole-proprietorship or partnership (self-employment), corporation or a limited liability company. You don’t need to set up a corporation or limited liability company to have a SEP. This means that you can set up a SEP if you are a freelancer, a hairdresser, a consultant, a contractor, or a baker who sells cookies to your friends and neighbors. Consult your tax advisor if you are uncertain whether the structure of your business will allow for a SEP.