Webthe average certified occupational therapist assistant salary in the united states is $63,502 as of august 27, 2024, but the range typically falls between $57,303 and $70,258. Webthe average hourly pay for an occupational therapy assistant (ota) is $27. 72 in 2024. Visit payscale to research occupational therapy assistant (ota). Occupational therapy assistants help people facing physical or mental challenges gain or regain the skills. Webthe average salary for an occupational therapist assistant is $92,427 per year in united states. Salaries estimates are based on 19 salaries submitted.