You can take the SAT as many times as you want, but most students take the test 2 or 3 times. We recommend taking the PSAT or a practice test two years before you finish high school. Plan ahead to take the official SAT in spring or winter one year before you finish school. If you are unhappy with your score, that leaves you time to prep and take it again before application deadlines. Your scores are good for 5 years.