ETFs are marketed as the low-cost alternative to actively managed funds. That story is mostly true, but it leaves out important details. The headline fee is only one of four costs you actually pay, and a « cheap » ETF can quietly become an expensive one if you ignore the rest. Here is what investors actually pay.
Last verified: May 2026
Key takeaways
- The headline fee (TER) understates true cost: Most ETFs charge 0.05% to 0.50% per year, but spreads, custody, and tax friction add 0.10% to 0.50% more.
- Bid-ask spreads matter at every trade: Liquid ETFs trade at 0.01% spreads. Illiquid niche ETFs can cost 1.0% per round-trip.
- Custody fees vary by 10x between brokers: Swiss banks charge 0.20% to 0.50% per year custody. Some neobrokers charge zero. Over decades, this is the biggest hidden cost.
- Tax drag is real: US-domiciled ETFs lose 15% of dividends to foreign withholding for Swiss investors. Irish-domiciled ETFs recover more of this.
- For most investors, ETFs are still cheaper than active funds: Total ETF cost of ownership typically lands at 0.30% to 0.80% per year. Active mutual funds rarely come in below 1.5%.
What makes ETFs cheap (in theory)
An ETF, or exchange-traded fund, is a basket of securities (stocks, bonds, commodities) that trades on an exchange like an individual stock. Most ETFs simply replicate an index: the S&P 500, the MSCI World, the Swiss Market Index. The fund manager does not pick winners. They buy the index components in the right weights and let the basket run.
Because there is no active manager making decisions, the underlying fees are dramatically lower than active funds. A typical broad-market ETF has a Total Expense Ratio (TER) of 0.05% to 0.30% per year. The cheapest US S&P 500 ETFs charge as little as 0.03%. Compare this to an actively managed Swiss equity mutual fund at 1.0% to 2.0% per year and the gap is staggering.
Over 30 years, a 1.5% annual fee difference on a CHF 100,000 portfolio (assuming 6% gross returns) costs you over CHF 200,000 in lost compound growth. That is the mathematical case for ETFs in one sentence.
The four real costs of owning an ETF
The TER is what gets advertised, but it is one of four costs. Understanding all four is the difference between a cheap-looking ETF and a genuinely cheap portfolio:
- Total Expense Ratio (TER): The annual management fee, deducted continuously from fund value. This is the headline number. For a CHF 10,000 position at 0.20% TER, you pay CHF 20 per year invisibly.
- Bid-ask spread: Every time you buy or sell on the exchange, you pay the spread between the bid (what buyers offer) and the ask (what sellers want). Liquid ETFs like a large S&P 500 fund have spreads under 0.05%. Niche thematic ETFs can have spreads over 1.0%.
- Brokerage and custody fees: Your broker or bank charges to execute trades (CHF 5 to CHF 50 per trade in Switzerland) and to hold your portfolio (custody, 0.0% to 0.50% per year). For long-term investors, custody is the silent compounding cost.
- Tax drag: Foreign withholding tax on dividends, less recoverable for non-Swiss-domiciled ETFs. US-domiciled ETFs lose 15% on dividends for Swiss investors after the treaty. Irish-domiciled ETFs recover more thanks to better US treaty access.
ETF vs. active fund: a real-money comparison
Here is what a typical Swiss investor actually pays over a year on a CHF 50,000 global equity position, using realistic numbers for each option:
| Cost component | Cheap broad ETF | Niche thematic ETF | Active mutual fund |
|---|---|---|---|
| TER (annual) | CHF 25 (0.05%) | CHF 250 (0.50%) | CHF 750 (1.50%) |
| Spread (4 trades/year) | CHF 10 (0.02%) | CHF 200 (0.40%) | Included in NAV |
| Custody (annual) | CHF 100 (0.20%) | CHF 100 (0.20%) | CHF 100 (0.20%) |
| Tax drag | CHF 30 (Irish-domiciled) | CHF 75 (US-domiciled) | CHF 30 |
| Total annual cost | CHF 165 (0.33%) | CHF 625 (1.25%) | CHF 880 (1.76%) |
The cheap broad ETF really is cheap. The thematic ETF is closer to an active fund than its marketing suggests. The active mutual fund is the most expensive in all scenarios, even with no trading costs.
Where the hidden costs come from
Three hidden costs catch most investors off guard:
Tracking error. An index ETF aims to replicate its benchmark but never matches it exactly. Costs, cash drag from dividends, and replication method (full vs. sampling vs. synthetic) all create slippage. A good broad ETF tracks within 0.05% of its index. A poorly-managed niche fund can drift by 0.50% per year.
Trading frequency. ETFs are tradeable like stocks, which seduces some investors into trading frequently. Every trade costs spread and (in Switzerland) a 0.075% stamp duty. Over a year, an active ETF trader can rack up costs that exceed an active fund’s TER. The same instrument can be cheap or expensive depending on how you use it.
Custody at private banks. Traditional Swiss private banks charge custody fees of 0.30% to 0.50% per year on portfolios under CHF 1 million. On a CHF 100,000 portfolio, that is CHF 300 to CHF 500 per year, just for the bank to hold your securities. Cheap ETFs inside an expensive custody account stop being cheap.
If avoiding custody drag is a priority, Alpian’s investment mandate is structured with transparent all-in fees that include custody, advisory, and trading.
How to choose a genuinely cheap ETF
For a Swiss investor building a long-term portfolio, four criteria filter the market down to the genuinely cheap options:
- TER under 0.20% for core exposures: Global equity, US equity, European equity, and developed-markets bonds should all be available at 0.20% or below. If you are paying more for these, you are paying for someone’s marketing budget.
- Irish or Luxembourg domicile (for non-Swiss equities): Better tax treaty access than US-domiciled funds for European investors. Look for « UCITS » in the name.
- Assets under management over CHF 100 million: Larger funds have tighter spreads, lower closure risk, and lower tracking error.
- Physical replication, not synthetic: Physical ETFs actually hold the underlying securities. Synthetic ETFs use swap agreements and carry counterparty risk. For long-term core holdings, physical is the simpler, safer choice.
For most Swiss investors building a portfolio from scratch, a portfolio of 3 to 5 broad ETFs covering global equities, Swiss equities, and global bonds will deliver a total cost of ownership around 0.30% per year. That is the cheap that the ETF marketing actually delivers.
If you would rather not select ETFs yourself, Alpian’s investment mandate handles selection, rebalancing, and tax optimisation as part of a single all-in fee from CHF 2,000 minimum.
Frequently asked questions
Are all ETFs actually cheap?
No. Broad-market ETFs tracking major indices are genuinely cheap at 0.05% to 0.20% TER. Niche thematic ETFs (clean energy, cybersecurity, robotics) often charge 0.40% to 0.75%, similar to many active funds. The label « ETF » does not guarantee low cost.
What is a good TER to look for?
For core global equity exposure, a TER below 0.20% is achievable and reasonable. The cheapest US S&P 500 ETFs go as low as 0.03%. For Swiss equity, expect 0.15% to 0.25%. For emerging markets, 0.18% to 0.30% is competitive. Anything significantly above these ranges should justify why it costs more.
Should I prefer US-domiciled or Irish-domiciled ETFs?
For Swiss residents, Irish-domiciled ETFs (UCITS) are generally preferred. They have better access to the US-Ireland tax treaty (15% withholding) compared to what a Swiss investor would get from a US-domiciled fund, and they avoid US estate tax complications. The cost difference can be worth 0.20% to 0.40% per year on dividend-heavy holdings.
Can I trade ETFs frequently to time the market?
You can, but it is rarely a good idea. Each round-trip trade costs you spread, brokerage, and (in Switzerland) stamp duty. Active traders typically underperform buy-and-hold investors after costs. ETFs are tax-efficient buy-and-hold instruments, not day-trading vehicles.
What is the minimum amount to start with ETFs?
In Switzerland, you can begin investing in ETFs with a few hundred francs, since many Swiss brokers offer fractional shares and zero commissions on selected ETFs. For a managed approach where ETFs are selected and rebalanced for you, opening an Alpian account requires a CHF 2,000 minimum investment.
Related reading: ETFs decoded: understanding the basics, active vs passive investment, and deconstructing investment fees.
