What is a 401k Investment Fiduciary?
There are many different types of fiduciaries in the business world, and all of them are accountable to their clients in different ways. When it comes to qualified plans, such as a 401k, there are several professionals who are serving the plan in a fiduciary status. Several examples of those fiduciaries are record keeper, third party administer, the plan trustees, and the investment advisor, just to highlight a few. In this write-up, we will focus on the investment advisor and outline the differences between a 3 (21) and 3 (38) investment fiduciary.
3 (21) Investment Fiduciary
This type of advisor provides investment recommendations to the plan trustees. Ultimately, it is up to the trustees to accept or reject those recommendations from the investment advisor. Since the plan trustees make the final decision, they are accepting the liability that goes with making prudent investment decisions. They are also responsible for monitoring the investments and making sure they are suitable based upon the guidance provided by the Department of Labor under the ERISA statute.
Bottom line: The plan trustees and investment advisors are co-fiduciaries when it comes to all investment decisions.
3 (38) Investment Fiduciary
A 3 (38) investment fiduciary has full authority and responsibility when it comes to all the investment decisions for the plan. The 3 (38) fiduciary will select, monitor, remove, and make any changes to the plan’s investment options. The 3 (38) investment fiduciary reduces the trustees’ liability, as they are taking responsibility for all investment decisions.
Bottom line: With this arrangement, the plan trustees are delegating the investment responsibility to the advisor and the advisor is making the day-to-day investment decisions for the plan.

Click here to meet our team of professional fiduciaries.
Categories
Recent Insights
-

Talk Your Chart | Market Reversals, AI Interdependence, and What Investors Should Know | Ep. 74
In episode 74 of Talk Your Chart, Brett Horowitz is joined by Lane Jones, Chief Investment Officer at Evensky & Katz / Foldes, to examine some of the most surprising market behaviors of 2025. They break down this year’s historic intraday reversals, why strong economic data can still trigger weak market reactions, and how rate-cut…
-

Combining Donor-Advised Funds and Private Family Foundations for Charitable Giving
When families embark on a philanthropic journey, they often consider whether to create a private family foundation (PFF) or establish a donor-advised fund (DAF). Both vehicles are powerful tools, each with distinct advantages. In practice, many families find that using both together can provide the flexibility, simplicity, and impact they seek. With careful planning, the…
-

Here’s How To Take Your Wine Investment Portfolio to the Next Level
Many investors exploring the world of wine as an asset start with a handful of bottles or a platform account. However, the real challenge (and opportunity) lies in taking a portfolio from “starter” to strategically optimized.
-

The OBBA §179 Deduction: Conversations Every Business Owner Should Be Having
It’s all the buzz… Congress passed another “new law” — the One Big Beautiful Bill Act (OBBBA). In it, major changes to the OBBA §179 deduction start in 2025. For small and mid-sized businesses, this could result in significant tax savings and better cash flow when investing in equipment, technology, or improvements. Forget all the…
-

Collaborative Divorce: Navigating Legal and Financial Decisions with Clarity
Divorce can be one of life’s most challenging transitions, affecting both emotional well-being and financial stability. How the process unfolds can influence your future for years to come. Collaborative divorce offers an approach that emphasizes clarity, control, and cooperation. While it may not be right for everyone, it provides a structured path for families who…
