Education
TER explained: what the total expense ratio covers — and what it does not
A figure that works invisibly every day — and becomes very visible over 30 years.
Last updated: 14 August 2026 · By The Acutic Research Team
The TER (total expense ratio) states a fund's annual ongoing charges as a percentage of fund assets. It is accrued pro rata daily inside the fund — never billed separately — and is therefore already reflected in the unit price. Complete it is not: the fund's internal trading costs, spreads, and all investor-side costs sit outside it.
What the TER covers — and what it does not
| Included | Not included |
|---|---|
| Management fee · depositary · index licensing · audit · registration and publications | Internal transaction costs (brokerage, bid-ask spreads) · swap fees of synthetic ETFs · performance fees · investor-side costs (order fees, spread at acquisition, custody fees) · the investor's taxes |
The PRIIPs key information document (Regulation (EU) 1286/2014) additionally reports estimated internal transaction costs — its cost figure is therefore broader than the TER.
How costs compound over decades
Costs act like a negative return — and compounding amplifies both. The table shows €10,000 at a constant 7% gross annual return; every figure is computed from the formula at render time:
| Annual cost | after 10 years | after 20 years | after 30 years |
|---|---|---|---|
| 0.07% | €19,543 | €38,194 | €74,643 |
| 0.50% | €18,771 | €35,236 | €66,144 |
| 1.50% | €17,081 | €29,178 | €49,840 |
Formula: end value = €10,000 × (1 + 0.07 − cost)years. Simplification: constant gross return, annual accrual; real returns vary and the TER accrues daily. After 30 years, €24,803 separates the cheapest and the priciest variant — the 1.50% case ends roughly 33% lower.
Tracking difference: the fuller lens
For index funds, tracking difference (index return minus fund return over the same period) measures what actually arrives: all costs, but also offsets such as securities-lending revenue. It can therefore come in below the TER — or above it when replication is weak. Two funds with identical TERs can differ markedly here.
Frequently asked questions
Is the TER debited from my account separately?
No. Ongoing charges are taken pro rata daily out of fund assets and are therefore already reflected in the unit price. No booking appears on your account — the TER shows up only as a return drag.
Does the TER include the fund’s trading costs?
No. Costs arising when the fund rebalances — brokerage, bid-ask spreads, and swap fees in synthetic ETFs — sit outside the TER. The PRIIPs key information document reports a separate, broader cost line that includes estimated internal transaction costs.
Why can an ETF do better than its TER implies?
Securities-lending revenue and tax-efficient replication can offset part of the costs. That is why tracking difference — index return minus fund return over the same period — is the fuller lens: it measures what actually reaches the investor.
Is the TER defined uniformly by law?
Not entirely. The figure follows industry convention; what is binding are the cost disclosures of the PRIIPs key information document (Regulation (EU) 1286/2014), whose “ongoing costs” are broader than the TER. Two providers may classify edge items differently.
Further reading: Sharpe ratio explained: what the metric tells you — and what it does not and Teilfreistellung for ETFs: the 30% explained simply. Create free account.
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