Serving as a 401(k) plan sponsor comes with important fiduciary responsibilities.

Under ERISA, employers sponsoring retirement plans are expected to act in the best interest of plan participants while maintaining prudent oversight of investments, fees, service providers, and plan administration.

For many HR and finance teams, fiduciary responsibility can feel overwhelming because the obligations extend far beyond simply offering a retirement plan.

At Basic Capital, we believe fiduciary oversight should feel more transparent, organized, and manageable. A strong fiduciary process can help employers reduce compliance risk while creating better retirement outcomes for employees.

This checklist outlines some of the key fiduciary responsibilities plan sponsors should regularly review throughout the year.

1. Regularly Review Plan Fees and Expenses

One of the core fiduciary responsibilities for employers is ensuring retirement plan fees remain reasonable relative to the services being provided.

That includes reviewing:

• Recordkeeping fees

• Investment management fees

• Advisor compensation

• Administrative costs

• Revenue-sharing arrangements

Plan sponsors should understand how fees are structured and whether participants can clearly see the total cost of the plan.

At Basic Capital, we believe transparent pricing helps employers make more informed retirement plan decisions while reducing confusion around hidden fee structures.

Fiduciary Checklist

✔ Review fee disclosures annually
✔ Confirm all plan costs are documented clearly
✔ Evaluate whether fee structures remain competitive
✔ Understand how advisor and provider compensation is paid

2. Monitor Investment Options Prudently

ERISA requires fiduciaries to act prudently when selecting and monitoring plan investments.

This does not necessarily mean always choosing the highest-performing funds. Instead, employers should maintain a documented process for evaluating:

• Investment performance

• Risk characteristics

• Expense ratios

• Fund manager changes

• Investment lineup diversification

Plan sponsors should also review whether the investment lineup continues to support participant retirement goals across different risk profiles and life stages.

Modern retirement platforms increasingly provide more flexibility and visibility into investment oversight, helping employers and advisors manage fiduciary responsibilities more effectively.

Fiduciary Checklist

✔ Review investment performance regularly
✔ Maintain an updated Investment Policy Statement (IPS)
✔ Document investment committee decisions
✔ Evaluate whether investment options remain appropriate for participants

3. Monitor Service Providers and Advisors

Fiduciary responsibility also extends to monitoring the providers supporting the plan.

This includes:

• Recordkeepers

• Advisors

• Payroll providers

• Third-party administrators

• Fiduciary service providers

Employers should periodically evaluate whether service providers:

• Continue delivering expected services

• Maintain reasonable pricing

• Support compliance requirements effectively

• Improve the participant experience

• Align with long-term retirement plan goals

At Basic Capital, we believe employers benefit from retirement partners that support plan sponsors transparently while helping simplify administration and compliance oversight.

Companies exploring retirement plan modernization can also review our For Employers resources to learn how modern retirement infrastructure can support fiduciary oversight and operational efficiency.

Fiduciary Checklist

✔ Review provider agreements regularly
✔ Confirm fiduciary responsibilities are documented clearly
✔ Evaluate service quality and participant support
✔ Monitor provider fee transparency

4. Ensure Timely Contribution Deposits

Employers are responsible for ensuring employee salary deferrals and employer contributions are deposited into the plan within required timeframes.

Late contribution deposits are one of the most common retirement plan compliance issues and can create:

• DOL penalties

• Excise taxes

• Fiduciary breach concerns

• Additional correction work

Payroll integration and contribution monitoring processes should be reviewed regularly to reduce operational risk.

Fiduciary Checklist

✔ Verify payroll integrations regularly
✔ Monitor contribution timing consistently
✔ Reconcile payroll and plan records
✔ Address deposit errors immediately

5. Maintain Required Participant Notices and Documentation

Plan sponsors are also responsible for providing required participant disclosures and maintaining accurate plan documentation.

This may include:

• Safe harbor notices

• Summary Plan Descriptions (SPDs)

• Fee disclosures

• Blackout notices

• Participant communication records

Proper documentation helps demonstrate fiduciary diligence if the plan is ever audited or reviewed.

Fiduciary Checklist

✔ Maintain organized compliance documentation
✔ Track required participant notices
✔ Confirm annual disclosures are distributed properly
✔ Retain fiduciary meeting records and plan amendments

6. Monitor Participation and Retirement Readiness

While not always viewed as a traditional compliance task, monitoring employee participation and retirement readiness has become increasingly important for modern plan sponsors.

Low participation rates can contribute to:

• Nondiscrimination testing failures

• Poor retirement outcomes

• Lower employee engagement

• Increased compliance complexity

At Basic Capital, we believe modern retirement experiences can help improve long-term participation and participant engagement through:

• Better technology

• Transparent retirement planning

• Simplified enrollment

• Personalized retirement experiences

Fiduciary Checklist

✔ Monitor participation rates throughout the year
✔ Review employee contribution trends
✔ Evaluate retirement readiness metrics
✔ Improve employee communication and enrollment support

7. Review Fiduciary Processes Regularly

Fiduciary responsibility is not a one-time exercise. Employers should maintain ongoing governance processes that demonstrate consistent oversight and prudent decision-making.

That often includes:

• Regular fiduciary committee meetings

• Documented review processes

• Compliance calendars

• Service provider evaluations

• Investment reviews

Strong governance processes can help reduce risk while creating a more scalable retirement administration structure as companies grow.

Fiduciary Checklist

✔ Schedule recurring fiduciary reviews
✔ Maintain documented governance procedures
✔ Review compliance calendars annually
✔ Reevaluate plan structure as the company evolves

Final Thoughts

Fiduciary responsibility is one of the most important aspects of managing a 401(k) plan, but it does not need to feel overly complicated or reactive.

At Basic Capital, we believe modern retirement infrastructure should help employers:

• Simplify compliance oversight

• Improve operational efficiency

• Increase transparency

• Support stronger retirement outcomes

• Reduce administrative friction

As retirement plans become more complex, employers with stronger governance processes, better visibility into plan data, and more modern retirement technology may be better positioned to manage fiduciary responsibilities confidently over the long term.

Ready to modernize your company’s retirement plan experience? Get started with Basic Capital to learn how our platform helps employers streamline administration, improve retirement outcomes, and support long-term fiduciary oversight.