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When should you take the SAT or ACT? Build a calm testing plan

The best testing plan works backward from application deadlines and forward from a student’s actual readiness.

By Lock InSeptember 24, 20267 min read
Illustrated weekly calendar

The short answer

For many students, junior year is the main testing year. College Board says most students first take the SAT in spring of junior year and may take it again in fall of senior year. ACT describes junior year as the most common testing period because students have completed more of the tested coursework.

That is a starting point, not a rule. Your course sequence, sports or performance calendar, accommodations, target colleges, and early-application plans may move the timeline earlier or later.

Step 1: check whether scores will help

  • Review the current testing policy on every college’s official admissions site. Policies can differ by school, program, scholarship, and application year.
  • Look at score ranges for enrolled students, but treat them as context—not a promise of admission or a minimum you must reach.
  • Check scholarship rules separately. A test-optional admissions policy does not automatically mean every scholarship is test-optional.

Step 2: compare the tests before committing

Take one timed, official practice SAT and one timed, official practice ACT under realistic conditions. Compare not only the scores, but also pacing, fatigue, confidence, and how much unfamiliar content appeared.

Most U.S. colleges accept either exam. Pick the test that gives you the clearest path to improvement, then concentrate your practice there instead of preparing for both indefinitely.

Step 3: choose a first date and a backup date

  • 9th grade: focus on coursework and familiarity. Formal SAT or ACT testing is rarely the priority.
  • 10th grade: use a practice test or school-administered assessment to learn the format and identify gaps.
  • 11th grade: choose a first official date after a focused preparation window, often winter or spring, and reserve a later date if a retake would be useful.
  • 12th grade: test only when the score-return date fits your application or scholarship deadlines. Do not assume a late score will arrive in time.

Step 4: prepare in weekly units

Start with a diagnostic. Turn the result into a short list of skills, then practice in small weekly blocks: one content gap, one timed set, and one review of missed questions. Full-length practice tests are useful checkpoints, but reviewing why you missed a question is where much of the learning happens.

If practice scores have flattened, ask whether the next hours are likely to change the outcome. Time spent testing has an opportunity cost: schoolwork, sleep, activities, essays, and relationships still matter.

A simple decision rule

Register when you can name the score’s purpose, protect a realistic preparation window, and receive results before the deadline that matters. Retake when your practice evidence suggests meaningful room to improve—not simply because another date exists.

Sources and further reading

Testing dates and college policies change. Confirm current dates with SAT or ACT and each college’s policy before registering or applying.