TESTS College The majority of four-year colleges require that students submit ACT or SAT scores as part of the application process. ACT/SAT test scores are just one of the many factors colleges use to decide whether or not to accept an applicant. All colleges accept both ACT and SAT scores. You should take the ACT and/or SAT in the spring of your junior year. If you want to improve your scores, you will then have time to retake them. If you’re applying to a competitive program or college, or applying for a scholarship, having high test scores can be important. You can retake the ACT and SAT multiple times. The best way to prepare for the ACT and SAT is to take college prep courses in high school.