The cost of obtaining RBT (Registered Behavior Technician) certification can vary depending on several factors. To begin with, the initial expense involves the 40-hour training course, which is a mandatory requirement. The price for this course can range from $100 to $400, depending on the provider. Additionally, there is a $50 application fee that must be paid to the Behavior Analyst Certification Board (BACB). Once the application is approved, candidates must pass the RBT exam, which costs $45. Furthermore, some individuals may choose to invest in study materials or preparatory courses, which can add to the overall expense. Lastly, maintaining the certification requires an annual renewal fee of $35, along with ongoing supervision costs, which can vary. In summary, the total cost of becoming an RBT includes the 40-hour training course, application fee, exam fee, potential study materials, and annual renewal fees. The initial training course can cost between $100 and $400, the application fee is $50, and the exam fee is $45. Additional expenses may include study materials and the annual renewal fee of $35, along with any supervision costs.