Retirement Plan Guide
Understanding Retirement Plan Fees: What Form 5500 Reveals
Retirement plan fees compound over decades and can reduce your final savings by hundreds of thousands of dollars. DOL Form 5500 data makes these costs visible for the first time.
A 1% difference in annual plan fees may sound trivial, but over 30 years it can reduce your retirement savings by 25% or more. Form 5500 filings make plan costs transparent, but only if you know where to look and how to interpret the numbers.
Why Fees Are the Most Important Number Most Workers Ignore
Most retirement plan participants can name their employer match percentage but not their plan's total fee. This is a problem, because fees are the one retirement variable that is entirely within the plan sponsor's control and that compounds relentlessly against you over decades. A $500,000 balance paying 1.5% annually in fees loses $7,500 per year, money that would otherwise be earning returns.
The DOL requires plans to disclose fees on Form 5500 precisely because they recognized this problem. Schedule C lists every service provider and their compensation. But the data is buried in regulatory filings that most participants never see. PlainRetire makes this data accessible so you can evaluate whether your plan's costs are reasonable.
The challenge is that "reasonable" depends on plan size. A plan with $100 million in assets can negotiate institutional pricing that a plan with $1 million cannot. Comparing your plan to all plans is misleading, compare it to plans of similar size and type.
What Form 5500 Tells You About Fees
What it tells you: Schedule C reports direct and indirect compensation paid to all service providers receiving $5,000+. Direct compensation comes straight from plan assets. Indirect compensation (revenue sharing, 12b-1 fees) is paid from investment fund expenses to the recordkeeper or other providers. The total of both types represents the plan's all-in cost for services.
What it does not tell you: Form 5500 reports aggregate amounts, not per-participant costs. It also does not separately report investment management fees embedded in fund expense ratios, those are disclosed in fund prospectuses, not Form 5500. The total cost of participating in a plan is the sum of Form 5500-reported fees PLUS the expense ratios of the investment options you choose.
How to use it: Look up your employer's plan on PlainRetire and note the total assets and service provider compensation. Divide compensation by assets to get a rough fee percentage. Compare to similar-sized plans in your industry.
Plan Size and Fee Economics
Large plans
0.1-0.3% of assets
$1B+ in assets
Mid-size plans
0.5-1.0% of assets
$10M-$100M
Small plans
2-3%+ of assets
Under $1M
What it tells you: There is a strong inverse relationship between plan size and fee percentage. The largest plans (billions in assets) may pay 0.1-0.3% of assets in total fees. Mid-size plans ($10M-$100M) typically pay 0.5-1.0%. Small plans (under $1M) can pay 2-3% or more, because fixed administrative costs are spread across fewer assets.
What it does not tell you: Lower fee percentages do not always mean better value. A $50 billion plan paying 0.15% may actually be getting worse service than a $50 million plan paying 0.75%, because the absolute dollar amounts are vastly different. Fee percentage is useful for peer comparison but not for absolute quality assessment.
How to use it: Find plans of similar size to yours on PlainRetire and compare fee percentages. If your plan is significantly above the peer median, it may be worth raising with your plan committee.
What This Means for You: Evaluating Your Plan
0.2% of assets
0.75% of assets
2.5% of assets
Step 1, Find your plan. Search for your employer on PlainRetire and review the plan summary, including total assets, participant count, and service provider details.
Step 2, Calculate the fee percentage. Divide total service provider compensation by total plan assets. This gives you a rough administrative fee rate.
Step 3, Compare to peers. Look at other plans of similar size in your industry. If your plan's fee percentage is notably higher than the median, the costs may be unreasonable.
Step 4, Talk to your employer if fees are high. Plan sponsors have a fiduciary duty to ensure reasonable fees. If your plan is paying significantly more than comparable plans, raising the issue with your HR department or plan committee is appropriate, and legally, they must take fee concerns seriously.
Frequently Asked Questions
What fees does Form 5500 disclose?
Schedule C requires plans with 100+ participants to disclose all service providers receiving $5,000+, including direct compensation (paid from plan assets) and indirect compensation (revenue sharing, 12b-1 fees). Both types reduce participant returns.
How much do typical 401(k) fees cost?
Total plan costs typically range from 0.5% to 2.0% of assets annually. A 1% fee on $500,000 costs $5,000/year. Over 30 years, the difference between 0.5% and 1.5% can reduce final savings by 20-30%.
How do I compare my plan to benchmarks?
Compare total service provider compensation as a percentage of assets to similar-sized plans in your industry on PlainRetire. Plans with $10M+ should generally pay less than 1% of assets. Compare within your size tier, not against the largest plans.
Can I do anything about high plan fees?
Yes. Plan sponsors have a fiduciary duty to ensure reasonable fees. Raise concerns with HR or the plan committee, they must review fees regularly. You can also supplement with an IRA if plan fees are excessive.
Sources: DOL EBSA, Form 5500 Datasets.
Last updated: April 2026
