Even though the referee job is considered a part-time gig, referees in the NFL must do more than show up for the game once a week. They are also required to spend at least 35 hours each week preparing for the event, studying the rules and training physically. Travel time is also a part of the assignment. Rookie referees usually start at around $78,000 annually.
While baseball referees and umpires typically make more than NFL referees, they also work multiple games each week.Learn more about Salaries