A. The bonus is, in the mind of the company, a gift rewarding seniority as a salesman, so it is still linked to sales, generally not specifically. Also, it is an incentive, in view of which the junior salestaff is motivated to work harder and not to look for other employment. All employees, old, new, and prospective, take such bonuses under consideration as an attractive factor of salary. And is it not subject to taxes and considered "Wages" just like the baseline salary? All this shows that you are working for it. And Allah knows best.