No, you do not need a degree to work as a sales representative. If you prefer not to go the college route, there are still job opportunities for you as a sales representative. In fact, almost 17% of sales representatives have only a high school diploma. That's not to say that a college degree will not be preferred by some companies. About 45% of sales reps have a bachelor's degree, and 13 % have an associate's degree in business, marketing, communication, and psychology.