In a world where many colleges and scholarship programs still require standardized test scores, determining when to take the SAT is an especially critical part of the admissions process. While most students take the SAT during their junior year of high school, some start taking it as early as their sophomore year, and others keep testing well into their senior year of high school. It all depends on your test-taking goals, target universities, and current aptitude. The trick is to start taking tests early enough that you can get a little practice under your belt, but not so early that you haven’t had sufficient time to study. It’s a bit of a balancing act, which is why we created this guide to help you figure out exactly when to prepare for, register for, and take the SAT. Here’s what you need to know.