The provision of a salary, essentially a fixed amount of pay for each pay period, is also considered a type of insurable earnings. Other forms of compensation also fit into the broad category of insurable earnings.Commissions and bonuses that are sometimes granted above and beyond wages and salary are included.he provision of a salary, essentially a fixed amount of pay for each pay period, is also considered a type of insurable earnings. Other forms of compensation also fit into the broad category of insurable earnings.