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

Four 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. The same material is also on video, if that is how you would rather work through it.

Four 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 levels
How large does the gap between two annual percentage fees become over one horizon, with everything else held identical?
Compare structures
At what portfolio value does a flat annual fee cost less than a percentage one, and which is cheaper on either side of it?

The four overlap as little as they can. The calculator computes; the explainer teaches the mechanism and needs no figures at all; one comparison measures how far apart two fee levels finish, and the other locates the portfolio value at which two differently shaped prices cost the same.

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. It is 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 four UBWHY pages above are what has been finished on investment costs, and the video is the same material in the other medium. A new one is listed here when it is published, never before it exists and never as a placeholder for something that might.