Personal Finance · Explainer
How investment fees compound against you
A fee is charged on the whole balance every year, including on the growth that the fee itself prevented.
The short answer
- Ongoing charges apply to assets, not to profits, so they are paid in losing years too.
- Platform fees, fund charges, spreads and FX costs stack on top of one another.
- Published cost disclosures make the total comparable across providers.
Fees are the one variable in investing that is known in advance. Returns are uncertain; the charge is contractual. That asymmetry is why cost is the first thing worth examining in any product.
The stack
- Fund ongoing charges, deducted daily inside the fund's price.
- Platform or custody fees, charged on the account balance.
- Trading commissions and the bid-offer spread on each transaction.
- Currency conversion, where the account and the asset differ.
- Exit, transfer or account-closure charges.
Why the effect grows
A percentage charge levied annually on the balance removes both the amount taken and every future return that amount would have earned. Over a long horizon the cumulative shortfall is far larger than the sum of the fees paid, which is why small differences in headline percentages are not small.
When paying more is defensible
Cost is a criterion, not the only one. Access to a needed market, tax wrapper availability, execution quality and the stability of the provider all carry value. The point is to know what the premium buys.
Sources
- How fees affect returns — U.S. SEC
- Investment cost disclosure — ESMA
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How this article was produced
- Responsible desk:
- Personal Finance
- Published:
- 4 Aug 2026, 06:30 UTC
- Last updated:
- 4 Aug 2026, 06:30 UTC
- Verification:
- Figures and quotations checked against primary sources under our fact-checking policy and editorial standards.
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This article is general financial information and journalism, not personalised financial, investment, tax or legal advice.