What is TER? ETF fees explained — and what 0.2% really costs over 30 years
Every ETF factsheet shows a TER — total expense ratio — expressed as a percentage per year. It looks tiny: 0.07% here, 0.45% there. But TER is deducted every single year, on your entire balance, for as long as you hold the fund, which makes it one of the few return-drags you can predict with certainty. Understanding what it covers, what it hides, and how it compounds is foundational ETF knowledge.
What the TER includes — and what it leaves out
The TER bundles the fund's ongoing operating costs: the management fee paid to the issuer, index licensing fees paid to providers like MSCI or FTSE Russell, custody and administration, audit, and regulatory reporting. It is deducted from the fund's assets daily in tiny slices, so you never see a bill — the cost simply shows up as the fund lagging its index by roughly the TER each year.
What the TER does not include matters just as much. Internal transaction costs from rebalancing, the bid-ask spread you pay when buying and selling, your broker's order fees, and any taxes are all on top. Conversely, funds can also earn money back through securities lending, which is why some ETFs track their index more tightly than their TER would suggest. The cleanest single metric is tracking difference — the fund's actual return minus the index return — which captures all of this at once. TER is the promise; tracking difference is the receipt.
Your product, in the feed our readers actually scan.
580 × 120 in-feed · native in-feed slot
How a 0.2% difference compounds over 30 years
Small percentages become large euros when compounded over decades. Take two funds tracking the same index, one charging 0.12% and one charging 0.32%, and invest €300 a month for 30 years at a 6% gross annual return. The cheaper fund grows to roughly €297,000; the more expensive one to about €286,000. The 0.2% fee gap quietly consumed around €11,000 — several years of contributions — without the expensive fund doing anything worse except charging more.
This is why fee comparisons belong at the start of fund selection, not the end. It is also why the trend in the UCITS market has been relentlessly downward: core global index exposure that cost 0.50% a decade ago is now available below 0.20%, and switching from an old expensive fund to a modern cheap one can be worthwhile even accounting for the transaction costs — though mind the tax consequences of selling.
When a higher TER can be worth paying
Cheapest is not automatically best. A slightly more expensive fund can be the better buy if it has meaningfully better tracking difference, a much larger fund size (which improves spreads and reduces closure risk), a share class your broker executes for free in a savings plan, or a domicile with better withholding-tax treatment for your situation. A 0.05% TER advantage is instantly erased by a wider spread if you trade a small, illiquid fund.
The practical rule: use TER to shortlist, then compare tracking difference, fund size, spread and domicile among the finalists. Our screener shows TER and fund size side by side across the UCITS universe precisely so this comparison takes minutes rather than hours.
A final note on where TER matters most: it scales with your balance, not your contribution. In year one of a €100-a-month plan, the difference between 0.12% and 0.32% is about 24 cents — genuinely irrelevant. By year twenty, with six figures invested, the same gap costs hundreds of euros annually. This is why fee discipline is a habit worth building early, before it is expensive: the fund you choose casually today is often the fund you still hold, out of inertia and tax friction, when the fee finally bites.
Key takeaway
TER is the most predictable drag on your returns and the easiest to minimise — but it is a shortlisting tool, not a verdict. Check the tracking difference before you decide, and remember that every 0.1% saved annually is money that compounds for you instead of the fund issuer.
This article is educational content, not investment advice. Capital is at risk; past performance does not predict future returns. Tax treatment depends on your individual circumstances and country of residence.