Best Practices for Managing Multi-Currency Portfolios as a European Retail Investor

Investing across borders is easier than ever for Europeans, but a multi-currency portfolio introduces new risks and costs. If you hold assets in USD, GBP, CHF, or other currencies, you face FX fees, currency risk, and tax complications—on top of your usual investment decisions. This tutorial will show you, step by step, how to manage these challenges using EUR-centric examples and actionable instructions for popular brokers like DEGIRO and Trade Republic.

As we covered in our complete guide to money management in Europe, mastering multi-currency investing is a key skill for building wealth in a global market. Here, we’ll go deeper—so you can invest internationally with confidence and control.

Step 1: Map Your Currency Exposures

What to do: List all your investments and note which currency each is denominated in. For example, a US-listed S&P 500 ETF is in USD, but an Xetra-listed ETF on the MSCI World may be in EUR or USD—always check the factsheet or broker details.

• Log in to your broker (e.g., DEGIRO or Trade Republic).
• Export your portfolio or manually note each asset’s ISIN, name, and currency.
• Use a spreadsheet or a free tool like Portfolio Performance (available across Europe) to tag each holding by currency.

Why it matters: You can’t manage what you don’t measure. Knowing your currency mix is the foundation for controlling risk and costs.

What can go wrong: Many investors assume EUR-listed ETFs are always EUR-denominated. In fact, some EUR-listed funds still hold USD assets, exposing you to USD risk. Always verify the “fund currency” and “trading currency.”

Step 2: Understand and Quantify Your FX Risk

What to do: Calculate how much of your portfolio is exposed to non-EUR currencies. For each asset, note the percentage of its value in your total portfolio and its base currency. Add up exposures: e.g., 50% EUR, 40% USD, 10% GBP.

• In Portfolio Performance, set “currency” for each asset and use the built-in “Allocation by currency” report.
• If using a spreadsheet, add a column for “weight in portfolio” and sum by currency.

Why it matters: Currency swings can boost or erode your returns. For example, if the EUR strengthens against the USD, your US stocks are worth less in EUR—even if the S&P 500 is flat.

What can go wrong: Ignoring FX risk can mean nasty surprises. In 2022, the EUR/USD dropped 10%—so a US ETF lost value in EUR terms, even if the US market was stable.

Step 3: Minimize FX Fees When Trading

What to do: Review how your broker handles foreign currency transactions and what they charge for FX conversion. For DEGIRO and Trade Republic:

• DEGIRO: By default, they automatically convert EUR to the asset’s currency at each trade, charging a 0.25% fee. You can enable the “Active” currency account to hold USD, GBP, etc., and manually convert when rates are favorable (official FAQ).
• Trade Republic: All trades are settled in EUR, and they use internal FX rates—typically with a 0.25–0.30% spread. No multi-currency accounts.

1. Log in to your broker.
2. For DEGIRO: Go to Account → Currency Settings → Enable “Active” for USD/GBP if you want to manage FX manually.
3. For Trade Republic: No manual FX option; all conversions are automatic.

Why it matters: Small FX fees add up, especially with frequent trading or larger amounts. On a €10,000 USD ETF purchase, a 0.25% fee is €25—each way.

What can go wrong: Buying UK or US stocks frequently or using recurring plans without checking FX rates/fees can quietly eat into your returns.

Step 4: Decide If and How to Hedge Currency Risk

What to do: Decide if you want to hedge your foreign currency exposure. For most long-term investors, some FX risk is acceptable, but you may want to hedge if you have large non-EUR holdings or a short investment horizon.

• Look for EUR-hedged share classes (e.g., “iShares S&P 500 EUR Hedged UCITS ETF”, ISIN: IE00B3ZW0K18).
• On DEGIRO or Trade Republic: Search for ETFs with “EUR hedged” in the name.
• Compare the ongoing charges (TER) and performance—hedged funds cost more and may lag in strong EUR years.

Why it matters: Hedging reduces currency swings but isn’t free. Over the long term, EUR-hedged funds may underperform due to costs.

What can go wrong: Many investors hedge everything “just to be safe”—but hedging costs compound and can reduce your total return. Also, not all asset classes have good hedged options.

Step 5: Track and Report Multi-Currency Performance

What to do: Use a tool that can report your returns in EUR, regardless of asset currency. Portfolio Performance (free, open source) lets you set your base currency to EUR and tracks all FX effects automatically.

• Import your broker’s CSV export into Portfolio Performance.
• Set “EUR” as your base currency in settings.
• Check the “Performance (EUR)” dashboard to see true returns after currency moves.

Why it matters: Only by viewing your portfolio in EUR can you see your real performance and risk. Many brokers show returns in “asset currency,” hiding FX effects.

What can go wrong: Relying on broker dashboards can mislead you—especially if you have multiple brokers or trade in several currencies.

Step 6: Prepare for Tax and Reporting Implications

What to do: Check how your country taxes foreign dividends, capital gains, and FX gains/losses. Keep detailed records of:

• Each trade’s EUR value (even if bought in USD/GBP)
• Dividends received, with EUR equivalent on payment date
• Any FX gains (some countries, e.g., Germany, tax these if you actively convert currencies)

• Download annual tax reports from your broker (DEGIRO: “Documents” → “Annual Statement”; Trade Republic: “Documents” → “Tax Certificate”).
• If unsure, consult a tax advisor familiar with cross-border investments. See our guide on how to choose a financial advisor in Europe.

Why it matters: Tax authorities want everything in EUR, not USD/GBP. Mistakes can lead to penalties or missed deductions.

What can go wrong: If you report gains in the original currency, you may over- or under-pay tax. Not tracking dividend FX can also cause issues.

Common Mistakes in Multi-Currency Portfolio Management

• Assuming EUR-listed ETFs are always EUR-hedged. Many track USD assets unhedged—check the factsheet.
• Ignoring cumulative FX fees. Frequent small trades in foreign currency assets can quietly erode returns.
• Over-hedging. Paying for EUR hedging on all assets can drag your portfolio, especially over long periods.
• Neglecting tax records. Failing to record EUR values for each transaction can complicate tax reporting.
• Using only broker dashboards. These often don’t show FX-adjusted returns or aggregate across accounts.

Next Steps

• Review your current portfolio for hidden FX exposures—use the mapping process above.
• Compare your broker’s FX fees and consider switching to one with lower costs or better currency management tools.
• Explore portfolio tracking tools that handle multi-currency reporting (like Portfolio Performance).
• For broader context, see our complete guide to money management in Europe.
• If you’re just starting out, our step-by-step emergency fund guide can help you build a solid EUR base before adding currency risk.

Disclaimer: This article is for educational purposes only and does not constitute financial advice. Always do your own research and consider consulting a qualified financial advisor before making investment decisions.