Definition of pension plan funding: group Immediate Participation Guaranteed (IPG) contract annuity

modification of the group deposit administration annuity under which an employer participates in the investment (which may prove to be adverse as well as favorable), mortality, and expense experience of the plan on an immediate basis. Under the IPG, contributions are paid into a fund to which interest is credited. At retirement, an immediate annuity is purchased for the employee. The size of the benefit will depend on the benefit formula used and the investment, mortality, and expense experience of the plan.