In Montana, employees are not entitled to job-protection under workers’ compensation laws. Your employer is not required to hold your job open for you and may replace you or fire you while you’re out on workers’ comp leave. However, there is one major exception: It is illegal for your employer to fire you because of the fact that you have applied for or received workers’ comp benefits.
However, as long as your termination is for a legitimate business reason — such as your company needs to get the work done — that is legal. (Montana is the only state that requires employers to have “good cause” for firing an employee who has completed an initial probationary period.)