what type of retirement plans
A traditional pension plan that defines a benefit for an employee upon that employee's retirement is a defined benefit plan. In the U.S., corporate defined benefit plans, along with many other types of defined benefit plans, are governed by the Employee Retirement Income Security Act of 1974 (ERISA).
It can be offered to your employees instead of a more conventional retirement plan (such as a 401(k) plan), or to supplement such a plan. Each of your participating employees establishes and maintains a separate IRA, and elects to have a certain amount deducted from his or her pay on an after-tax basis.