Yes, you must register all of your employees for COIDA, regardless of whether they are casual or permanent staff. The Compensation for Occupational Injuries and Diseases Act (COIDA) states that all employers who employ one or more employees must register with the Compensation Fund. This includes casual workers, temporary workers, and contractors. There are a number of reasons why you should register all of your employees for COIDA irrespective of the legal requirements: To protect your employees: COIDA provides compensation to workers who are injured or contract occupational diseases as a result of their work. This includes medical expenses, temporary or permanent disability benefits, and death benefits for dependents. To comply with the law: Failure to register your employees for COIDA is a criminal offense. You could be fined or even imprisoned for not complying with the law. To avoid personal liability: If an employee is injured or contracts an occupational disease and you have not registered them for COIDA, you could be held personally liable for their compensation. To register your employees for COIDA, you will need to complete a COIDA registration form (WC2 form) and submit it to the Compensation Fund. If you want more information on the process you can read more about COIDA Registration here.