Two cases decided in January—one by the Sixth Circuit and another by the District Court for the District of Columbia—offer a cautionary tale to plan sponsors who rely on a statute or regulation that allows retroactive amendments to tax-qualified plans. Both cases involved a change to the interest and mortality assumptions that pension plans use to calculate the minimum amount of a lump sum distribution. The change was expressly authorized by a statute, but the Pension Benefit Guaranty Corporation said “not so fast”—leaving the plan sponsors responsible for several million dollars in additional liabilities.
The cases offer a cautionary tale for plan sponsors: practices that are permitted in one context will not necessarily be accepted in other contexts. For this reason, it is important to conduct a thorough analysis before relying on agency guidance or accepted practice.