When is the “right” time to start test prep? For many students and families, the answer feels like a guessing game. Begin too early, and a student may burnout before they reach their target score. Start too late, and the pressure might skyrocket, likewise impeding performance. Finding the sweet spot for the ideal test prep timeline depends on an individual student’s goals, schedule, and test-taking habits.
Let’s explore what you should consider and outline strategies for early planning versus last-minute SAT and ACT prep.
Factors to Consider When Timing Test Prep
- Academic Baseline. Before deciding when to start test prep, it’s important to fully understand current skill level. What level of math has the student completed? Are they a strong student or will they need significant review/remediation to grasp the level of mastery needed for their target score? Did they take either the PSAT or PreACT at school? If so, how did they do? Even if they are a strong student, will their school performance definitely translate to top test scores? (You can read more about that here.) A diagnostic exam—even if you think you’re a few months away from beginning the test prep process in earnest—is a great way to gauge the starting point and identify strengths and weaknesses.
- Test Dates and Application Deadlines. Figuring out the optimal timeline for test prep begins with knowing when the scores are needed by. Work backwards from college application deadlines (not as simple as early decision or regular decision, especially athletic recruitment is in play) to determine the latest possible test date. Knowing these dates will help you structure an appropriate timeline. Make sure you familiarize yourself with testing dates for either the SAT1 or ACT2.
- Extracurricular Commitments. Take a close look at schedule. If you’re juggling sports, music lessons, or other time-consuming commitments, make sure you really have the bandwidth to add another venture. Think of test prep as another extracurricular activity or class in school when determining if you have enough time to really devote to studying. Make sure you don’t just assess your schedule during the school year but over summer as well. Some students’ schedules will be better for spreading prep out over a longer period while others’ indicate an intense program may yield the best results.
- Test-Taking Style. Some students are naturally confident test-takers who may need only a brief review, while others struggle with testing anxiety and benefit from a more gradual approach. Tailor the timeline to the student’s unique stance on testing to maximize the efficiency of the test prep process.
Ideal Timelines for the SAT and ACT
Note that the time frames refer to the last possible test date that will work for college application deadlines.
- Early Starters (10-12 months out): Ideal for students targeting top scores or needing extensive content review. Starting this early allows for gradual learning and spaced practice without rushing in addition to sitting for multiple administrations of the test.
- Standard Start (6-8 months out): This timeline works for most students. It provides enough time to cover all the material, practice regularly, take several practice tests, and take the actual test enough times to reach their target score.
- Last-Minute (2-3 months out): For students with busy schedules or those needing a refresher, this timeline focuses on reviewing key concepts and taking practice tests. Depending on the exact timing, they may be able to take the test twice. However, it’s not ideal for those who need significant skill-building.

Early Planning vs. Last-Minute Prep
Finding the right balance between early planning and last-minute prep is essential. Each approach has its advantages and risks, and the best choice depends on a student’s personality, academic readiness, and time constraints. Here’s a closer look at what each method offers.
Early Planning Pros
- Gradual learning with spaced repetition improves retention.
- Reduces stress by spreading prep over time.
- Builds confidence through repeated exposure to test formats.
- More opportunities to take the actual test.
Early Planning Cons
- Students may lose momentum or interest if the timeline is too long.
- It can be challenging to maintain focus over an extended period.
Last-Minute Prep Pros
- Intense, focused preparation can work for students who thrive under pressure.
- Practice closer to the test date may feel more relevant.
Last-Minute Prep Cons
- Limited time to address weak areas or build foundational skills.
- Increased stress and a lack of opportunity for full-length practice tests.
- Fewer opportunities to take the actual test.
How to Build the Right Test Prep Timeline
Building an effective test prep timeline requires understanding unique needs and setting clear, achievable goals. A well-structured plan can reduce stress, build confidence, and ensure consistent progress. Here are the steps to take:
- Set Goals Early. Work to define realistic goals based on target colleges. Knowing the average scores and test optional policies will help guide the timeline.
- Schedule Regular Check-Ins. Plan progress assessments to track improvement and adjust the timeline if needed. Regularly scheduled practice tests are especially helpful.
- Plan for Multiple Test Dates. Consider scheduling two or three test dates. The first attempt can serve as a baseline, with subsequent tests used to refine and improve scores.
- Factor in Breaks. Avoid burnout by scheduling breaks during holidays or busy extracurricular seasons. Consistent, focused effort over time is more effective than cramming.
Timing is everything when it comes to SAT and ACT prep. By considering unique needs, academic baseline, and schedule, you can create a plan that leads to success without unnecessary stress. Whether you start early or opt for a more focused approach, the key is to be intentional and flexible. With a thoughtful plan in place, you can feel confident and prepared to tackle the SAT or ACT.
Looking for personalized guidance? Reach out to learn more about how we can help your family create the perfect prep strategy.
A Note About Changes to the ACT
The ACT is undergoing several significant changes that will affect students starting in April 2025 for online tests and September 2025 for all test formats. Here’s what you need to know:
Science Will Be Optional
- The Science section will no longer contribute to the composite score. While it will still be scored on a 1-36 scale, the composite score will average only English, Math, and Reading. Science will still be scored on the 1-36 scale, appearing as a separate score.
- Students who take paper-based tests before September 2025 will still see Science included in the composite score, and those scores will be “grandfathered” for future reporting.
Shorter Test Format
- The ACT will be approximately one-third shorter, reducing total testing time to about two hours.
- English and Reading passage lengths will be reduced, and students will have more time per question across sections.
- Math will have fewer advanced-level questions, and answer choices will drop from five to four.
Impact on Prep
- Plan for Format Consistency: Students graduating in 2026 should aim to complete testing before September 2025 to avoid switching formats mid-prep.
- Update Science Prep: Focus on integrated scientific reasoning and adjust practice materials for changes in section emphasis.
- Adapt to Timing Changes: Timed practice is key to mastering shorter sections with more time per question.
1 The SAT is offered 8 times a year: March, May, June, August, September, October, Novembe
2 The ACT is offered 7 times a year: February, April, June, July, September, October, and
This piece first appeared on our Substack. Read it there or subscribe to get new essays on testing, admissions, and learning in your inbox.