Investment Fee Impact Calculator

See how an annual investment fee erodes returns over decades versus the same portfolio with no fee.

By Konstantin Iakovlev · Updated September 2026 · Source: SEC

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Without Fees

$761,225.50

With Fees

$574,349.12

Total Fees Lost

$186,876.39

Growth Comparison

Year 5$133,822.56 vs $140,255.17
Year 10$179,084.77 vs $196,715.14
Year 20$320,713.55 vs $386,968.45
Year 30$574,349.12 vs $761,225.50

Use the Investment Fee Impact Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

Fees that look trivial on a fact sheet quietly erode a portfolio over decades, and this tool makes that erosion visible. By running a portfolio that pays an annual fee against the same portfolio with no fee across a long holding period, it shows just how far apart the two final balances drift.

Projections rest on a compound annual growth rate adjusted for the drag of annual fees. The balance with fees is FV = P * (1 + (R - F))^N and the balance without fees is P * (1 + R)^N, where P is the principal investment, R is the annual return rate, F is the annual fee percentage, and N is the number of years; the gap between them is the Total Fees Lost. To compare two funds, run the calculator once with each fund's fee.

Treat the output as an estimate rather than a guarantee, since past performance never dictates future results. Investors who chase advertised returns while ignoring the fee attached to them often misjudge what a fund actually delivers. One more caveat worth carrying: taxes on capital gains will trim your net returns further, and those are not modeled here.

Example: Investing $50,000 for 30 Years

  1. 1 You invest $50,000 once and expect a 7% average annual return before fees over 30 years. With no fee, the calculator's Without Fees figure is $50,000 × 1.07^30 = $380,612.75.
  2. 2 Fund A charges 1.5%. Enter a 1.5% fee: the balance with fees is $50,000 × 1.055^30 = $249,197.56, and fees cost $131,415.19.
  3. 3 Fund B charges 0.2%. Rerun with 0.2%: $50,000 × 1.068^30 = $359,838.46, with $20,774.29 lost to fees. Fund B finishes $110,640.90 ahead of Fund A.
  4. 4 This example clearly illustrates how even a seemingly small difference in annual fees can lead to a massive disparity in your wealth accumulation. Choosing low-cost investments is a powerful strategy for long-term financial success.

Source: SEC · Last updated: September 2026

Frequently Asked Questions

How much do investment fees cost over time?
A 1% annual fee on a $100,000 portfolio over 30 years at a 7% return leaves $574,349, against $740,169 in a 0.10% fee fund, about $166,000 in lost growth (and about $187,000 compared with no fee at all). Fees compound against you just as returns compound for you, making even small fee differences hugely impactful over decades.
What is a reasonable investment management fee?
Index funds charge 0.03-0.20%. Robo-advisors charge 0.25-0.50%. Financial advisors charge 0.50-1.00% of assets under management. Actively managed mutual funds charge 0.50-1.50%. Any fee above 1% should deliver clearly demonstrated value through superior returns, tax planning, or comprehensive financial planning.
How do I find out what fees I am paying?
Check the expense ratio listed in your fund prospectus or on the fund's website. For advisory fees, review your advisory agreement. Look for the total cost including fund expenses, advisory fees, platform fees, and transaction costs. Many investors do not realize they are paying multiple layers of fees.

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