401(k) fees: A breakdown of 401(k) plan costs
401(k) plan fees: Trustee costs
Some fees, such as those charged for loans, are not included in the data from the "401k Averages Book." The total includes investment costs, record keeping and administrative costs, document preparation, and trustee costs. Of all these costs, trustee costs are least expensive, ranging from nothing for large plans to $8 a year for small plans. Trustees from large plans sometimes get compensated from revenue-sharing fees, crediting any surplus back to the plan. They have authority over plan assets and typically serve as fiduciaries to the plan.