Topic
Investment Fees: What They Actually Cost
A fee quoted as a small annual percentage is deducted again and again, and the money deducted stops earning. Over a long horizon those two effects together can move a modelled ending value by considerably more than the fees themselves add up to.
Cost is the one variable arithmetic can price, and pricing it is not the same as judging it. A lower fee creates a lower hurdle; it does not, on its own, establish that the cheaper option is better value.
Start here
Three finished pages cover this subject, and they answer different questions. Start with whichever one matches yours — none of them assumes you have read the others.
Calculate
Investment Fee Drag Calculator
Run the model on your own balance, contributions, horizon, assumed return and fee structure. It runs entirely in your browser: UBWHY does not receive what you enter, stores none of it, and puts none of it in a link.
Understand
How Investment Fees Compound Into Lost Wealth
Why a small annual investment fee can create a much larger long-term difference, why the second component of that difference is signed, and where the arithmetic stops.
Read the explainer: How Investment Fees Compound Into Lost Wealth
Compare
1% vs 0.2% investment fees
One controlled thirty-year plan, run at both fee levels with every other assumption held identical, stating the ending-value gap and the return hurdle in full.
Three different questions
- Calculate
- What do these fees do to a modelled outcome under my own assumptions?
- Understand
- Why does the ending-value difference become larger than the money actually deducted?
- Compare
- What changes when one fee structure is held against another under identical assumptions?
The three overlap as little as they can. The calculator computes; the explainer teaches the mechanism and needs no figures at all; the comparison measures one controlled case.
What that looks like in one controlled scenario
US$500.00 a month for 30 years, at an illustrative 7.00% gross annual return, with everything except the annual percentage fee held identical.
- 1.00% annual fee
- US$481,147.36
- 0.20% annual fee
- US$562,166.52
- Difference in modelled ending value
- US$81,019.15
- Extra gross return the higher-fee path would need to finish level
- 0.86 percentage points a year
Outputs of a UBWHY calculation model applied to the assumptions above, from verified test case FD-8. They are not historical returns, expected returns, the performance of any product, or a forecast. The full assumptions, both paths and the solved hurdle are on 1% vs 0.2% investment fees.
A lower fee is not automatically a better product
Everything above prices one variable. Two real options that differ in cost can also differ in:
- risk, and how it is managed
- advice, and who is accountable for it
- service, and what happens when something goes wrong
- implementation quality
- tax handling
- administration
- access to something otherwise unavailable
- behavioural support
A higher fee creates a higher hurdle. Whether the additional value justifies that hurdle is a separate question — a judgement about a specific option, for a specific person, and not something a projection can answer.
Nothing on this page or the pages it links is financial, legal or tax advice, and no product, provider or platform is named, ranked or recommended anywhere in this topic.
What this guide covers
The three pages above are what UBWHY has finished on investment costs. A new one is listed here when it is published — never before it exists, and never as a placeholder for something that might.