Becoming an occupational therapy assistant (OTA) requires an associate or bachelor’s degree from an accredited program, a minimum of 16 weeks of clinical fieldwork, and a passing score on a national certification exam. The entire process typically takes two to three years from start to finish, and the career pays a median salary of $68,340 per year with strong job growth ahead.
What Occupational Therapy Assistants Do
Occupational therapy assistants work directly with patients to help them regain or develop the skills they need for daily life and work. That might mean guiding someone through exercises after a stroke, helping a child with developmental delays practice fine motor skills, or teaching an older adult how to use adaptive equipment to dress independently. OTAs carry out the treatment plans designed by occupational therapists (OTs), who handle evaluations and diagnosis. The OTA is the person spending the most hands-on time with patients, tracking progress, adjusting activities in the moment, and reporting back to the supervising OT.
OTAs work in hospitals, rehabilitation centers, schools, skilled nursing facilities, and outpatient clinics. Employment is projected to grow 19 percent from 2024 to 2034, which is significantly faster than average for all occupations.
Step 1: Complete Prerequisite Courses
Before you can enter an OTA program, most schools require a set of prerequisite courses. Common prerequisites include human anatomy with lab, physiology with lab, general psychology, medical terminology, statistics, and an introduction to occupational therapy. Programs generally expect a cumulative GPA of at least 2.75 on all prior college coursework, with a B- or better in each prerequisite course. Anatomy and physiology courses often need to have been completed within the last five years to count.
If you’re coming straight from high school, you can usually knock out these prerequisites during your first year of community college. If you already have some college credits, check which ones transfer. Meeting prerequisites before applying keeps you on the fastest timeline.
Step 2: Earn a Degree From an Accredited Program
The non-negotiable requirement is graduating from a program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE). ACOTE is recognized by both the U.S. Department of Education and the Council for Higher Education Accreditation, and graduating from one of its approved programs is what makes you eligible to sit for the national certification exam and apply for state licensure. If your program isn’t ACOTE-accredited, you cannot become licensed.
You have two degree options. An associate degree in occupational therapy assisting (OTA-A) is the traditional route, typically completed in about two years. A bachelor’s degree option (OTA-B) also exists and takes longer but covers additional coursework. Both degree levels prepare you as an entry-level practitioner, and both lead to the same credential and the same job title. Most OTAs enter the field through the associate degree path.
Your coursework will cover human development, conditions and diagnoses you’ll encounter in practice, therapeutic techniques, anatomy, kinesiology, and professional ethics. Programs vary in size, cost, and location, so compare graduation rates, exam pass rates, and job placement rates when choosing a school.
Step 3: Complete Fieldwork
Every ACOTE-accredited program includes mandatory clinical fieldwork built into the curriculum. This is where classroom learning becomes real patient care. Fieldwork happens in two levels.
Level I fieldwork introduces you to clinical settings through observation and limited participation. It’s woven into your coursework throughout the program. Level II fieldwork is the intensive, hands-on portion: a minimum of 16 weeks of full-time clinical placement. You’ll work in more than one practice area or up to three different settings, giving you exposure to varied patient populations. Part-time fieldwork is allowed if it’s at least 50 percent of a full-time equivalent schedule, though that extends the timeline.
Fieldwork placements are typically arranged by your program, though you may have some input on settings. Expect to function much like an entry-level OTA by the end of your Level II placement, with a supervising therapist reviewing your work.
Step 4: Pass the NBCOT Certification Exam
After graduating, your next step is the certification exam administered by the National Board for Certification in Occupational Therapy (NBCOT). Passing this exam earns you the credential COTA, which stands for Certified Occupational Therapy Assistant. The passing score is 450.
The exam tests your clinical reasoning, knowledge of treatment approaches, and understanding of ethical practice. It’s a multiple-choice, computer-based test, and most programs prepare you for it throughout the curriculum. Many graduates use additional study guides or prep courses in the weeks before sitting for the exam. You must have graduated from an ACOTE-accredited program to be eligible.
Step 5: Get Your State License
Every U.S. state, the District of Columbia, and Puerto Rico require OTAs to hold a license or registration before practicing. State requirements vary but generally include proof of passing the NBCOT exam, a completed application, a fee, and sometimes a background check or jurisprudence exam covering your state’s specific practice laws.
To give you a sense of costs, New York charges $147 for an OTA license and offers a $70 limited permit that lets you begin working under supervision while your full license is processed. Other states have their own fee structures and timelines. Check your state’s occupational therapy licensing board for exact requirements, as some states have additional steps that can add a few weeks to the process.
Keeping Your Certification Current
Your COTA credential isn’t permanent. NBCOT requires certificants to complete at least 36 units of continuing education during each renewal cycle. These units can come from a mix of competency assessment units (structured self-assessments) and professional development units (courses, conferences, publications, and similar activities). Most states tie their license renewal to ongoing NBCOT certification, so staying current with your continuing education keeps both your national credential and state license active.
Timeline and Cost Overview
If you’re starting from scratch, expect about two years for an associate degree program, plus the time needed for prerequisites if you haven’t completed them. Here’s a rough breakdown of what you’re looking at:
- Prerequisites: One to two semesters, depending on your starting point
- OTA program: Approximately two years for an associate degree, including fieldwork
- NBCOT exam and state licensure: A few months after graduation for application processing and testing
Tuition varies widely depending on whether you attend a community college or a private university. Community college programs tend to be the most affordable path. Factor in costs for the NBCOT exam, state licensure fees, and any required background checks when budgeting.
Salary and Career Growth
The median annual wage for occupational therapy assistants was $68,340 as of May 2024. Salaries vary by setting, geographic location, and experience. OTAs working in hospitals or outpatient centers often earn differently than those in schools or home health. With 19 percent job growth projected over the next decade, demand is driven largely by an aging population that needs rehabilitation services and by expanded recognition of occupational therapy’s role in schools and mental health settings.
Some OTAs eventually pursue a master’s degree to become full occupational therapists, which opens up evaluative and supervisory responsibilities along with higher earning potential. Others specialize within the OTA role, building expertise in pediatrics, hand therapy, geriatrics, or mental health through continuing education and clinical experience.