Stocks, bonds & funds
What a fund's expense ratio costs over decades
A mutual fund fee calculator: clients enter an investment, monthly contributions, years, gross return and expense ratio, and see the ending value with and without fees and the total cost.
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How much do mutual fund fees cost over time?
Fees reduce the return every year, and the lost amounts would themselves have compounded. A 7% gross return with a 1% expense ratio leaves 6%; over long periods, that gap can consume a double-digit percentage of the ending value. Comparing ending values with and without fees shows the full cost.
When fee disclosures or statements arrive
Fee disclosures, articles about index funds and conversations with friends make clients question what they pay. They want to know whether fees matter enough to act on, and they search for a clear number.
What the client types into a search box
“how much am I paying in fund fees”
How a client works through it
Enter the investment
Initial amount and monthly contributions.
Set years and gross return
Return before fees.
Enter the expense ratio
The fund's annual fee.
See the cost
Ending value with and without fees, cost of fees and fees as a share.
What lands in your inbox
When a client asks your firm to review the result, the request arrives as a contact record with their inputs and results attached, by email and, on paid plans, by webhook to your CRM.
Received
Investment size, contributions, years and expense ratio show assets and fee exposure. High expense ratios on large balances suggest a prospect paying more than necessary, a clear opportunity for review.
Reading the cost of fees
Ending Value (No Fees) and Ending Value (With Fees) show the two outcomes. Cost of Fees is the gap, and Fees as % of No-Fee Value expresses how much of the potential result fees consume.
Total Contributions shows what the client put in; the fee cost is often a surprisingly large fraction of it.
Results shown: Cost of Fees · Ending Value (With Fees) · Ending Value (No Fees) · Total Contributions · Fees as % of No-Fee Value.
One percentage point
A 7% gross return with a 1% fee becomes 6% net. On $100,000 for 30 years with no contributions, 7% grows to about $761,200 and 6% to about $574,300: the 1% fee costs roughly $186,900 at year 30.
Why would an advisory firm show fees openly?
Clients ask about fees anyway, and a firm that answers transparently earns credibility. The calculator shows the cost of high-fee products a prospect may hold elsewhere, which opens a portfolio review.
It also lets fee-only and fee-transparent firms explain their own value proposition honestly.
Follow-ups this request opens
- Review all-in costs across the client's accounts
- Compare with lower-cost alternatives
- Consider tax costs of switching funds in taxable accounts
- Explain the firm's advisory fee and value
What this calculator leaves out
- Constant gross return and fee.
- Loads, trading costs and advisory fees are not separately included.
- Taxes are ignored.
- Monthly compounding assumed.
Platform disclaimer shown under the calculator: Estimates only. Assumes a constant gross return and expense ratio with monthly compounding; loads, transaction costs and taxes are not included.
Compliance note for firms
Fee comparisons used in marketing must be fair and balanced. If an adviser compares its own fees, include all costs and avoid implying superior performance. Keep the client in control of the inputs.
Not legal advice. See our disclaimer and the guide to compliance for client calculators.
Terms your client sees in the calculator
These definitions appear in the calculator's collapsible Definitions block, so clients don't have to call to ask what a label means.
- Expense ratio
- The annual percentage of fund assets deducted to pay for management, administration and other operating costs. It is taken from the fund’s returns rather than billed to you, so it is easy to overlook. This calculator subtracts it from the gross return every year, which is how a 1% fee compounds into a large dollar cost.
- Gross return
- The return the fund’s investments earn before fees are deducted. The calculator assumes it stays constant every year, which real markets do not do. The same assumed gross return is used for both the with-fee and no-fee scenarios, so the gap between them is due only to fees.
- Net return
- The return you actually receive after fees: here, the gross return minus the expense ratio. A 7% gross return with a 1% fee leaves a 6% net return. The difference looks small in any one year but compounds, because the fee is taken from a balance that would otherwise have kept growing.
- Cost of fees
- The ending value with no fees minus the ending value with fees. It includes both the fees themselves and the growth those dollars would have earned if they had stayed invested. That lost compounding is why the cost over decades is far larger than the fee rate times your contributions.
- Compounding
- Earning returns on previous returns as well as on the original money. This calculator compounds monthly, so each month’s growth is added to the balance before the next month is calculated. Fees work against compounding in the same way: every dollar removed stops earning for all the years that remain.
- Sales load
- A commission some mutual funds charge when you buy shares (front-end load) or sell them (back-end load), separate from the expense ratio. It is a one-time percentage of the amount invested or redeemed. This calculator does not include loads, so for a load fund the true cost is higher than shown.
In our glossary: Expense ratio · Compound interest
Mutual Fund Fees calculator: questions from firms and clients
What is an expense ratio?
The annual percentage of assets a fund charges to cover its costs.
Is a 1% fee high?
It depends on the product and services; the calculator shows its long-run cost.
Does it include advisory fees?
Add them to the expense ratio for an all-in figure.
Are sales loads included?
No.
Should I switch to cheaper funds?
Possibly, but switching in taxable accounts can trigger capital gains. Ask the firm.
Why does a small fee matter so much?
Because it compounds, reducing the base every year.
Are taxes included?
No.
Which plan includes it?
Network. See pricing.
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Embed the Mutual Fund Fees calculator on your firm's site in an afternoon and receive requests with the numbers already filled in.
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