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Understanding Your 401k Fees
Retirement

Understanding Your 401k Fees

Last Updated: Published: Published: December 2026 ⏱ Reading time: 6 minutes
Updated for 2026
⚠ Disclaimer: This content is for informational and educational purposes only and does not constitute financial, tax, or investment advice. Results from calculators are estimates and may not reflect your actual situation. Consult a qualified financial professional before making financial decisions. Full terms

High fees are the silent killer of retirement wealth. A 1% difference in fees can cost you over $150,000 over a lifetime of investing.

Key Takeaways

High fees can eat your retirement. Learn how to spot them and lower them.

  • Types of Fees
  • How to Check
  • Frequently Asked Questions
  • Conclusion
  • Related Calculators

Types of Fees

  • Expense Ratios: The cost to own a mutual fund or ETF. Look for index funds under 0.10%.
  • Admin Fees: Costs charged by the 401(k) provider to run the plan.
  • Advisory Fees: Charges for managed accounts or advice (often 0.50% or more).

How to Check

Read your annual fee disclosure required by the Department of Labor. If your plan offers only high-cost funds, campaign for better options or contribute just enough for the match and invest the rest in an IRA.

Frequently Asked Questions

How much should I save for retirement?

Aim to save at least 15% of your income annually.

What is the difference between a 401(k) and an IRA?

A 401(k) is employer-sponsored, while an IRA is an individual account you open yourself.

When can I retire?

It depends on your savings and lifestyle, but typically between ages 60 and 67.

Conclusion

You can't control the market, but you can control your costs. Keeping fees low is the only guaranteed way to improve your investment returns.

Sources & References

  1. DOL — A Look at 401(k) Plan Fees — Department of Labor guide to understanding and comparing 401(k) plan fees. Accessed February 2026.
  2. Investor.gov — How Fees Affect Your Investment — SEC resource on how even small fees compound to reduce retirement savings. Accessed February 2026.
  3. IRS — 401(k) Plans — IRS overview of 401(k) plan rules, including fee disclosure requirements. Accessed February 2026.
  4. DOL — Fiduciary Responsibilities — Employer fiduciary duties regarding 401(k) fee transparency and plan management. Accessed February 2026.

Sources and References

  1. Internal Revenue Service. "Retirement Plans." www.irs.gov. Accessed 2026.
  2. Social Security Administration. "Retirement Benefits." www.ssa.gov. Accessed 2026.
  3. Internal Revenue Service. "401(k) Contribution Limits." www.irs.gov. Accessed 2026.