The real cost of fees: how 1% takes almost €80,000 over 30 years
A fund charging 1.5% a year and another charging 0.2% do not look that different: after all, it is just over one point. The problem is that fees compound too. Just as compound interest multiplies what you earn, an annual fee multiplies what you lose, because every euro you are charged stops earning a return for the rest of your investing life.
The 30-year sum
Suppose you invest €300 a month for 30 years (€108,000 contributed in total) in a fund whose portfolio returns 7% gross a year. The only thing that changes is the total annual fee (TER):
| Annual TER | Final capital | Cost versus 0% |
|---|---|---|
| 0% (reference) | €368,126 | — |
| 0.1% | €360,914 | €7,212 |
| 0.2% | €353,865 | €14,261 |
| 0.5% | €333,651 | €34,475 |
| 1% | €302,861 | €65,265 |
| 1.5% | €275,340 | €92,786 |
| 2% | €250,718 | €117,408 |
Between a typical index fund (0.2%) and a typical actively managed fund sold by Spanish banks (1.5%) there is a €78,525 gap. That is more than 70% of everything you contributed. And a 2% fee takes, over 30 years, more than all the money you put in yourself.
Why it weighs so much
The fee is not charged on what you earn, but on your whole balance, every year, whether the market rises or falls. With a 7% gross return, a 1.5% fee does not take "1.5%": it takes more than a fifth of your annual return. And in bad years it still gets charged.
That is why the effect grows with the horizon: in the early years the gap is almost invisible, and in the final ones it soars, precisely when your accumulated capital is largest.
"But the expensive fund will do better"
That is the argument for paying more: the manager will beat the index by more than they charge. The data do not back it up. S&P's SPIVA reports, which measure this systematically, show that the vast majority of actively managed equity funds lag their index over 10 to 20-year periods, and the share gets worse the longer the horizon. It is not that managers are bad: collectively they are the market, and the market minus fees always returns less than the market.
We explain it in more detail in active vs. index management.
Check it with your fund: in the compound interest calculator, subtract your fund's TER from the expected return and compare the result with an index fund. Or compare two specific funds head to head in the comparison tool.
Where fees hide
- Management fee: the main one. It is included in the TER and deducted daily from the NAV, so you never see a charge.
- Depositary fee: also inside the TER for most funds.
- Broker custody fee: some banks charge to hold your funds or ETFs, on top of the TER.
- Subscription and redemption fees: less common in index funds, but they exist. Check the key information document.
- Transaction costs: trading costs inside the fund. They are not in the TER, but they are in the total costs of the PRIIPs document.
- Robo-advisors: they add the platform's management fee to the funds' TER. We break it down in robo-advisor vs. index funds.
What to do if you already hold an expensive fund
In Spain you can transfer from one fund to another without paying tax on the gains. That means moving from an expensive fund to a cheap index fund costs you no tax today, which is not the case with ETFs or shares. If your bank has you in a 1.5% fund, switching is probably the financial decision with the best effort-to-result ratio you can make this year.
To choose a destination, start from the list of cheapest index funds and the guide to choosing an index fund.
In short
- Fees compound just like returns, but against you.
- With €300/month over 30 years, going from a 0.2% to a 1.5% TER costs about €78,500.
- Most active funds do not beat their index over the long term after fees.
- Tax-free fund transfers mean switching to a cheap fund has no tax cost in Spain.
Educational content, not financial advice. The figures assume a constant 7% gross return and constant fees; reality varies year to year.