Investment Fee Calculator
Enter an investment, expected return, annual fee, and time horizon to see how much fees quietly compound away. A 1% fee looks tiny, but over decades the difference is striking.
How it works
How a small fee compounds into a large drag
A fee is charged on your whole balance every year, not just on your gains. Because the slice it removes can no longer compound, the gap widens faster the longer you stay invested. At a 7% return over 30 years, a 1% annual fee can quietly consume roughly a quarter of the balance you would otherwise have ended with. The US SEC has illustrated the same idea: on a 100,000 dollar portfolio earning 4% over 20 years, a 1% fee leaves tens of thousands of dollars less than a 0.25% fee would.
How to read your result
Lost to fees is the difference between the two projections, not money taken upfront. Final value without fees assumes the full return compounds; final value with fees compounds at the return minus the fee. Try lowering the fee from 1% to 0.25% and watch how much of the gap closes.
Caveats
The projection assumes one constant return every year, which real markets never deliver. A lower fee is also not the only thing that matters: tracking quality, tax treatment, and how a strategy actually performs all count. A few active strategies do justify their cost, but reliably beating a low-cost option after fees is rare.
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How a 1% fee quietly erodes your compounding →
Frequently Asked Questions
Why does a tiny 1% fee matter so much?
The fee comes out of your entire balance every year, and whatever is removed can no longer compound. Over decades, that lost compounding adds up to a large share of your money.
What counts as a fee?
A fund or ETF expense ratio is the classic one, but trading commissions, platform charges, and advice fees all erode returns the same way. Add them together to see your true annual cost.
Where can I find the fee I am paying?
For a fund or ETF, look for the expense ratio or ongoing charges figure in the fact sheet or prospectus. Brokerage and platform fees are listed separately in their published fee schedule.
Is a higher-fee fund ever worth it?
Occasionally, but very few products reliably beat a low-cost option over the long run after costs, so a low fee is a sensible default rather than a guarantee.
Does a lower fee guarantee a better result?
No. A low fee improves your odds, yet tracking accuracy, tax efficiency, and the underlying strategy still shape the final outcome.
How does this calculator apply the fee?
It compounds your balance at the return with no fee, and at the return minus the fee with one, then shows the difference. It assumes a constant return and ignores taxes.
This calculator is an educational estimate, not individual investment advice. It ignores taxes.