What qualifications do you need to be a choreographer?

You need a highschool education, an easy place to get stage experience in the drama and arts industry. If you're out of highschool, you can still participate in school plays (musicals) locally to gain entry level experience in this field. You may also resource YouTube and other places for information and instructions on how to choreograph. Unfortunately, there may be only one or two good schools for choreography in the United States, and depending on where you live, going to one of those schools is probably a waste of time.