A profitsharing plan accepts discretionary employer contributions. There is no set amount that the law requires you to contribute.Find general information about 401(k) plans, the tax advantages of sponsoring the plan and the types of plans available. (a) Requirements for qualification. A 401(k) Profit Sharing Plan allows employees to take charge of their own retirement and defer a portion of their income to the plan. Plan assets are often invested wholly in the employer's stock. Profitsharing contributions aren't based on employee participation. The term "employer" is again essential to recognizing an "employee pension benefit plan" within the meaning of ERISA.