The Harvard admissions department indicates on its FAQ page that it doesn't have specific minimum standardized test score requirements. However, students admitted to the school typically fall within a range of relatively high scores. According to CollegeToolKit.com, the typical ACT score range for students admitted to Harvard is 31 to 35.

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Roughly 25 percent of students admitted to Harvard have ACT scores below 31. However, to gain admission with a lower score, you will typically need an above-average performance on other application materials, including your grades, activities and recommendation letters. Students can take the SAT as opposed to the ACT. The Harvard FAQ page states that admitted students normally have category scores between 600 to 800 on this test. All applicants, regardless of which general exam they choose to take, must complete two SAT Subject Tests.