Frequently asked questions

Short, plain-language answers to the questions beginners ask most. Search, or browse by topic below.

Basics (UCITS, ETF)

What is UCITS?
UCITS is the European Union's quality mark for investment funds. If an ETF has the word "UCITS" in its name, it means the fund complies with strict European rules on diversification, transparency, and protection of assets. For a European beginner, "UCITS" in the name is the main sign that the fund is safe to buy.
What's the difference between an ETF and an ordinary fund?
An ETF (Exchange-Traded Fund) trades on an exchange like a stock — you can buy and sell it at any point during the trading day. An actively managed fund (Investmentfonds), by contrast, is bought from the management company once a day at the closing price and usually carries fees 5–10× higher (1–2% per year versus 0.1–0.5% for an ETF). An ETF is also more transparent — its holdings are published daily.
What do "accumulating" and "distributing" mean for an ETF?
An accumulating ETF automatically reinvests dividends inside the fund — the number of your shares doesn't change, but they rise in value. A distributing ETF pays dividends to your brokerage account quarterly or semi-annually. In Germany, accumulating ETFs are usually more convenient tax-wise (one tax event per year via the Vorabpauschale).

Choosing your first ETF

Where should a beginner in Germany start?
Open a brokerage account and regularly buy one broad global UCITS ETF (VWCE or IWDA) via a Sparplan (savings plan). Popular brokers with an automatic Sparplan are Trade Republic and Scalable Capital (Germany and several EU countries), Trading 212 (most of the EU), and Interactive Brokers (everywhere in the EU). Don't try to build a complex portfolio right away — you can do that in a year or two.
VWCE or IWDA — which should I choose?
VWCE covers around 3,700 companies worldwide, including emerging markets (China, India). IWDA covers around 1,400 companies from developed countries only (no emerging markets). Historically IWDA performed slightly better thanks to its US weighting, but VWCE is more diversified. For a beginner the difference is small — both work as a "one and done" holding.
What's the minimum amount to start?
Via a brokerage Sparplan (a plan of regular purchases) you can start with €10 per month at Trade Republic, Scalable Capital, and many other brokers. A Sparplan buys fractional ETF shares, so €25–50 per month is already a real investment. What matters is consistency, not the size of your first contribution. Example: €25/month × 30 years at 7% per year ≈ €30,000.
What is the "5/10/40 rule"?
This is a UCITS diversification rule: the base limit per issuer is 5%, which can be raised to 10%, but only on condition that all positions above 5% together do not exceed 40% of the fund's assets. For index ETFs (which simply track a stock index) the limit on a single company is higher — up to 20%, in special cases up to 35%. This protects against excessive concentration.

Taxes (Germany)

How are ETFs taxed in Germany?
In Germany there is a 25% Abgeltungsteuer (flat capital gains tax) on capital income (dividends and gains from selling ETFs), plus a Solidaritätszuschlag of 5.5% on the tax (not on the profit — it's a "surcharge on the tax"). In total, from a €1,000 profit about €263.75 is withheld (i.e. 26.375% — excluding church tax, which is added for church members). The Teilfreistellung then exempts 30% of the profit from equity ETFs, so the effective rate comes to about 18.5%. Since 2018 there is also the Vorabpauschale — a prepaid tax on accumulating ETFs, charged once a year in January. If your broker is based in Germany, all of this is withheld automatically — you don't have to declare anything yourself.
What is the Vorabpauschale?
It's a "prepaid tax" on accumulating ETFs in Germany (since 2018), levied on a notional minimum annual return even if you haven't sold anything. The amount is calculated from the Bundesbank base rate and the ETF's value at the start of the year, and is capped at the fund's actual increase in value over the year (in a losing year it is zero). It is paid automatically by the German broker in January — nothing is required on your part.
What is the 30% Teilfreistellung?
It's a relief for equity ETFs in Germany: 30% of the profit is exempt from tax. So the effective rate for equity ETFs is not 26.375% but about 18.5%. It applies automatically — you don't need to file any application. This relief is one of the reasons ETFs are more advantageous in Germany than direct investments in individual stocks.
Do I have to file a tax return because of ETFs?
If you have a German broker — usually no, the taxes are withheld automatically. A tax return (Anlage KAP) is needed if: your broker is abroad; you want to reclaim tax via the Sparerpauschbetrag (€1,000/year stays tax-free if you have submitted a Freistellungsauftrag); or you had losses from sales you want to offset. Tip: submit a Freistellungsauftrag at your bank — it's free and automates the refund.

Portfolio strategy

How many ETFs should a beginner's portfolio hold?
One is already enough. If you buy VWCE or IWDA, you already own a slice of thousands of companies worldwide. Adding complexity only makes sense when you have a concrete reason — for example, you want more weight in emerging markets or less in the US. Most experienced investors in Germany hold 1–3 ETFs — no more.
What is a "sector ETF" and when do you need one?
A sector ETF invests in just one industry (technology, healthcare, defence, ESG). It complements a broad ETF but doesn't replace it. A reasonable share of sector ETFs in a portfolio is at most 5–15%. Use them only if you understand what you're investing in and why.
What is a regular purchase (Sparplan / DCA)?
A Sparplan is the automatic purchase of an ETF for a fixed amount at regular intervals (usually monthly). The concept is called Dollar-Cost Averaging (DCA): you buy more shares when prices are low and fewer when they're high. It takes the "when should I buy?" question out of your decisions and smooths the result. The simplest and most effective approach for a beginner.
Can I invest a lump sum (a large amount all at once)?
Yes, and statistically it often gives a better result than splitting the amount up (because markets rise on average). But psychologically it's harder: if the market falls a week after your purchase, that's tougher to handle emotionally. A compromise: split the amount into 3–6 parts and buy monthly. This worsens the long-term result only marginally but gives psychological stability.

Risks and reality

Can my ETF go bankrupt?
As a structure — practically not. The fund's assets are held separately from the management company (at a custodian), and even if, say, BlackRock or Vanguard became insolvent, your ETF shares would remain yours. The real risks are: (1) a market drop of 30–50% within a year — it has happened and will happen again; (2) the closure of a small ETF (AUM < €100m) with possible tax consequences.
What should I do when the market falls?
Nothing. If you've bought a broad global ETF — keep your Sparplan running as planned. Market drops are a temporary phenomenon: historically the broad stock market has recovered after every crisis — the S&P 500, for instance, has lived through dozens of downturns over the decades and gone on to reach new highs. The biggest beginner mistake is selling at the bottom in a panic. If the decline worries you, stop looking at your portfolio for a few months.
What average return should I expect from an equity ETF?
Over the long term (10+ years) broad global ETFs have delivered 7–10% per year nominally and about 5% after inflation. That's the average return — in individual years it can be −30% or +35%. Don't anchor on the return of the last 1–3 years (2023–2025 were unusually high at about 20%/year — that's not the norm, it's a recovery after 2022).

About Strean

Is Strean a financial adviser?
No. Strean is an educational platform: we explain how ETFs, taxes, and markets work. We do not give individual recommendations on "where to put your money," and we do not receive commissions from brokers or ETF providers. For individual decisions, consult a licensed financial adviser. Important: look for a Honorar-Finanzanlagenberater — advisers who work for a fixed fee paid by you and receive no commissions from the providers of financial products. Ordinary "financial advisers" in Germany usually earn a commission from insurers and funds, which creates a conflict of interest — they tend to recommend the products that pay them more, not the ones that are best for you.
Which languages is Strean available in?
Strean is available in German and English. All articles, pages, and tools are translated into both languages. The language switcher is in the top-right corner of the site. The main audience is European beginners, especially in Germany.