Definition
The prudent expert standard is the ERISA fiduciary standard of care requiring a plan fiduciary to act with the care, skill, prudence, and diligence that a prudent person familiar with the relevant matters would use — a standard elevated above ordinary prudence to that of an expert in the field.
Why it matters
The prudent expert standard is often described as the highest fiduciary standard known to law. It requires a plan fiduciary not merely to act as a reasonable person would, but as a prudent person familiar with the specific matter at hand — a subject-matter expert — would act. Naming the standard explicitly makes clear why plan fiduciaries evaluating specialized arrangements such as lifetime income options are expected to develop or obtain expertise sufficient to conduct the evaluation.
How it works
The prudent expert standard is the ERISA-specific reading of the Section 404(a)(1)(B) prudence duty. The statutory language requires the fiduciary to act "with the care, skill, prudence, and diligence under the circumstances then prevailing that a prudent man acting in a like capacity and familiar with such matters would use." Case law and Department of Labor guidance have interpreted the "familiar with such matters" phrase as an elevation from ordinary prudence to expert-level prudence — a fiduciary is expected to know what a prudent expert in the field would know when making the decision. Where the fiduciary lacks the necessary expertise directly, the standard is satisfied by engaging an appropriate expert (an investment consultant, an actuary, a specialized counsel) and by making decisions on the basis of that expert's analysis, subject to the fiduciary's continuing duty to evaluate the expert's work rather than defer to it uncritically. The standard is procedural in emphasis — courts evaluate the process by which a decision was made at least as heavily as the outcome that resulted from it.
In practice
For an individual DC plan participant, the prudent expert standard is what places the responsibility for evaluating investment and lifetime income options on the plan's fiduciaries as experts, rather than as generalists. Individuals do not need to become experts themselves; the plan's fiduciary infrastructure is expected to do that evaluation and document it. What an individual can reasonably ask is whether the plan committee has documented an expert-level evaluation of any specific option — particularly a lifetime income option, where the analytical requirements are more specialized than for a standard investment option. Plan fiduciaries evaluating in-plan lifetime income options are directly on the hook for the elevated standard; documentation of the process — including the analytical framework applied, the comparative benchmarks used, the expertise consulted, and the rationale for the resulting decision — is what satisfies the standard whether or not the outcome is later contested.
Related terms
- ERISA Section 404
- Prudent investor rule
- ERISA fiduciary
- Named fiduciary
- Investment policy statement
- Fiduciary breach
- Safe harbor annuity selection
- Realized value