Adding a 3(16) Fiduciary Service to Your Small Business Retirement Plan

Fiduciary responsibilities: If you’re a small business retirement plan sponsor, then by law you’re a fiduciary and must act in your plan participants’ best interests.

Delegation of duties: A 3(16) fiduciary can handle day-to-day responsibilities like managing paperwork and deadlines—tasks that would otherwise fall on you.

Time and risk reduction: Delegating administrative and compliance duties to a 3(16) fiduciary can reduce your administrative burden and potential liability.

Offering a retirement plan to employees makes you a fiduciary, meaning you’re legally bound to make decisions in the best interest of your employees who participate in the plan. Under the Employment Retirement Income Security Act of 1974 (ERISA), all retirement plan sponsors are fiduciaries held to rigorous standards.

For many small business owners, managing ongoing compliance, deadlines, and fiduciary risk can quickly become overwhelming, especially without dedicated internal expertise. If you’re thinking about whether adding a 3(16) fiduciary service to your plan makes sense, understanding what the role includes, and what it replaces, is a helpful place to start.

What does a 3(16) fiduciary do?

A 3(16) fiduciary takes on many of the administrative roles and responsibilities that would otherwise fall to the plan sponsor, allowing employers to be more hands‑off while reducing their fiduciary exposure. This typically includes overseeing day‑to‑day plan administration, managing compliance‑related tasks, and helping ensure the plan continues to operate in accordance with ERISA requirements.

While third‑party administrators (TPAs) and recordkeepers can provide guidance, support, and processing services, a 3(16) fiduciary is authorized to make and execute administrative decisions on behalf of the plan. That means the responsibility—and the associated liability—for those decisions shifts away from the plan sponsor and onto the 3(16) fiduciary.

This distinction matters because service providers that do not act as fiduciaries don’t assume the same level of responsibility or accountability. For small business owners, delegating administrative fiduciary duties can significantly reduce both day‑to‑day workload and potential risk.

Benefits of adding a 3(16) fiduciary service to a small business 401(k)

Adding a 3(16) fiduciary service to your 401(k) plan can offer meaningful advantages, especially when managing ongoing compliance and administrative responsibilities becomes challenging. In addition to saving time, a 3(16) fiduciary can help plan sponsors more effectively operate their 401(k) plan by:

Limiting fiduciary responsibilities and potential liability for the plan sponsor
Minimizing administrative tasks associated with day-to-day plan management
Helping keep the plan compliant with ERISA (while plan sponsors maintain some oversight responsibility)

Together, these services are designed to reduce day‑to‑day complexity while helping plan sponsors meet ERISA requirements with greater confidence.

Because each 3(16) fiduciary provider offers a different mix of administrative services and features, it’s important to work with your financial advisor to determine which option is the best fit for your business needs and goals.

Explore Ascensus 3(16) fiduciary administrative services

We provide best-in-class support for your day-to-day plan management responsibilities and create efficiencies with routine monitoring, reporting, notice delivery, and distributions management.

Our 3(16) Fiduciary Administrative Services help to reduce your workload and limit your responsibility as a plan sponsor by:

Handling fiduciary obligations and ensuring key functions are documented properly
Monitoring timely submission of payroll and the transfer of funds
Preparing and signing Form 5500
Identifying missing contributions
Locating missing participants
Approving distributions
Approving loans and monitoring loan payments
Authorizing incoming rollovers
Managing Qualified Domestic Relations Order (QDRO) process
And much more

Ready to get started?

If managing compliance requirements, documentation, and fiduciary risk feels difficult to balance alongside running your business, a 3(16) fiduciary service may be worth exploring. For more information about 3(16) fiduciary services or small business 401(k) plans, contact us at 833-893-3233.

Adding a 3(16) Fiduciary Service to Your Small Business Retirement Plan

What does a 3(16) fiduciary do?

Benefits of adding a 3(16) fiduciary service to a small business 401(k)

Explore Ascensus 3(16) fiduciary administrative services

Ready to get started?

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