How much do investment fees really matter?

Fees matter a great deal over the decades a financial independence plan runs, because they are taken from your whole balance every year and the money they take never compounds for you. A difference that looks tiny — 1% a year against 0.2% — can cost about a fifth of what you would otherwise end with after 30 years. Cost is also one of the few things about investing you control in advance.

How a small percentage becomes a large sum

The US Securities and Exchange Commission illustrates this with a $100,000 portfolio growing 4% a year for 20 years under ongoing fees of 0.25%, 0.50% and 1%, and shows the gap widening every year. Here is the same idea over a longer, more typical horizon:

Measured against what you earn rather than what you hold, fees look larger still. If a portfolio returns 7% and inflation is 3%, your real gain is about 4% — and a 1% fee takes a quarter of it.

Count every layer

• The fund’s own ongoing charge (expense ratio, TER or ongoing charges figure).
• A platform or account fee for holding the funds.
• An adviser’s fee, whether a percentage of assets, a flat fee, or commission built into the product.
• Entry and exit charges or sales loads.
• Trading costs: commissions, the gap between buying and selling prices, and currency conversion when you buy abroad.

The SEC suggests asking for every fee in writing, how each is charged, and how much the investment has to rise before you break even.

Does paying more buy a better result?

On average, no. Sharpe’s arithmetic shows the average active investor must trail the market by roughly the extra cost, and S&P’s SPIVA scorecard found 93% of US large-cap funds trailed the S&P 500 over the 20 years to the end of 2025. Morningstar’s 2025 study found the cheapest fifth of US funds returned 8.7% a year over the decade to 2024 against 5.6% for the most expensive fifth — and investors in the cheapest funds actually captured more of that return.

Fees when you are drawing on your savings

Fees keep running once you stop earning. If you plan to draw 4% a year from a portfolio that also pays 1% a year in fees, it has to support 5% — a quarter more than the withdrawal alone.

1. List every account and fund you hold.
2. Find each fund’s ongoing charge in its key information document or fact sheet.
3. Add any platform and adviser fee, as a percentage of what you hold.
4. Multiply the total by your balance: that is what you pay a year, in money.
5. Compare it with an equivalent low-cost option before deciding whether the extra is buying something you value.

Common mistakes

• Looking only at the fund’s charge and missing the platform or adviser layer.
• Paying a percentage-of-assets fee that grows every year as your balance grows, without checking what it buys.
• Choosing a product because it is “free” when the cost sits inside the price or the spread.

In your plan

Nivritee has no setting for ongoing fund, platform or adviser charges: the projection grows your savings at your return assumptions. So the return you enter should be after those costs. If you pay about 1% a year in all, take 1% off the return you would otherwise assume (how to choose it).