Cashiers are generally required to have at least a high school diploma or GED certificate. Becoming a cashier does not necessarily require a high school level education, but having a diploma or an equivalent drastically improves your chances of getting hired into a cashier position. Those without a high school diploma can take a GED test to earn a nationally recognized credential equivalent to a high school degree. A cashier with strong grades in mathematics and economics classes will have a natural skill set for the responsibilities they’ll have as a cashier. Although post-secondary education is not usually required for a cashier, employers may prefer candidates with a stronger educational background, and an associate’s or bachelor’s degree in a business-related field can provide a foundation for a cashier to seek advancement in their industry.