COTA® Exam Pass Rates: What the Numbers Actually Mean for Your Prep

Most candidates pass the Certified Occupational Therapy Assistant (COTA®) exam, not always  on their first attempt. Recent pass-rate data from the National Board for Certification in Occupational Therapy (NBCOT®*) shows that not every candidate passes the COTA® exam on their first attempt. While the numbers can feel daunting, the right preparation can help you approach exam day with confidence. Here’s what you can do to set yourself up for success on your first attempt.

How NBCOT® Reports COTA® Pass Rates (And Why It’s Confusing)

The NBCOT® reports two types of COTA® exam pass rates:

1. First Time New Graduates:  pass rates for those  who have graduated within the year and who passed on their first attempt.
2. All New Graduates: pass rates for those who graduated within the year and who passed regardless of the number of attempts.

Pass rates for all new graduates have been higher than those for first-timers over the years, suggesting that candidates eventually pass even if it’s not on their first attempt. However, because the retake fee is $430, most students feel financial pressure to prepare thoroughly and pass on their first try.

The Current COTA® Pass Rate Breakdown

The first-attempt pass rate in 2025 was 67%. For all new graduates, including those who tested more than one time, 85% passed. Historically,  the percentage for all new graduates tends to stay in the mid-to-high 80s. 

For context, COTA® examinees receive pass-or-fail results and must meet a scaled score of 450 (the passing standard) in a 300 to 600 range. 

Why First-Time Pass Rates Are Lower Than People Expect

First-timers can underestimate the COTA® exam’s difficulty, so they may be unfamiliar with the exam format, struggle with time management during the 4-hour, 190-item exam, or miss studying the higher-weighted content domains thoroughly. 

Furthermore, many students rely on passive study habits (i.e., rereading notes or rewatching lectures) instead of layering in more effective active recall methods, such as timed practice questions or exams.

Even then, candidates make the mistake of testing too early simply because they’ve achieved exam eligibility. You have a 90-day window to take the COTA® after receiving your Authorization to Test (ATT) letter—don’t schedule your exam date sooner if you’re not well prepared.

How to Improve Your Chances of Passing the COTA® Exam

A smart study strategy makes a real difference when preparing for the COTA®. Successful first-time takers use practice exam performance as an indicator of real exam readiness, ensuring they’re ready for the real deal come exam day. 

Retakers, on the other hand, tend to do better on subsequent attempts because they’re familiar with the exam. They can use their failed report to understand what they missed, see how close they were to passing, and adjust their strategy. 

With that in mind, performance data is key to determining whether you’re COTA-ready. Using performance tracking in a COTA-style question bank, map your progress across content categories to see how well you understand the exam’s content, items, and difficulty. Don’t rely solely on the overall percentage correct—while it may feel rewarding, your real exam results won’t report this score.

Lastly, structured, extended study timelines are ideal for COTA® prep. Cramming near the test date won’t help you be part of the percentage who’ve passed. Give yourself enough time to prepare within your 90-day testing window. 

How to Use Pass Rate Data to Strengthen Your Own Prep

Now that you understand NBCOT COTA® exam pass rates, here’s how to use them to your advantage. 

• Benchmark your practice scores against the passing threshold, not just against classmates: While it’s nice to see how you measure up against your peers, you should use the passing threshold as your comparative standard. Candidates can fail even though they’re just under the threshold. 
• Identify weak content areas early enough to actually address them: Ideally, you should make studying weaker areas one of your first priorities. Otherwise, you’ll find yourself scrambling to fill in the gaps before the exam, or worse, miss it on the exam entirely.
• Build in enough runway before your test date to act on data: We don’t want to sound like a broken record, but did we mention you need time to actually study? Make practice questions and exams a regular part of your study routine to better prepare for the COTA® and address knowledge gaps sooner rather than later.

Common Mistakes That Lower Your Odds of Passing the First Time

We’ve outlined some do’s for COTA exam prep, but do you know how to avoid the don’ts? 

1. Assuming a high overall pass rate means the exam is easy: Don’t underestimate the COTA® exam difficulty. Many OTA students struggle with this exam on their first attempt.
2. Not tracking performance by content category, only overall score: Content-category performance can identify major knowledge gaps. This matters because some content domains are weighted more heavily than others in the COTA exam outline. 
3. Scheduling the exam based on eligibility timing rather than readiness: You may want to schedule the exam date ASAP to get it over with, but just because you’re eligible doesn’t mean you should. Give yourself enough time to study and get ready. 
4. Relying on passive review instead of practice questions under timed conditions: You need to practice time management for the 4-hour-long exam. Use COTA-style practice questions and exams to build stamina and develop test-taking strategies for exam day. Real practice generates real results. 

While the COTA® exam pass rates for first-timers may seem intimidating, don’t sweat it. With the strategies above and the right resources, you can be among those who pass. 

*NBCOT® and COTA® are registered trademarks owned by National Board for Certification in Occupational Therapy, Inc. TrueLearn is not affiliated with or endorsed by National Board for Certification in Occupational Therapy, Inc.