Covered Calls for European Investors: A Step-by-Step Guide to Boosting EUR Income in 2026

If you’re a European investor seeking to boost your income from stocks or ETFs you already own, the covered call strategy can be a practical way to generate extra EUR each month. In this guide, you’ll learn exactly how to sell covered calls—from choosing the right shares, to executing the trade on a European-accessible platform, to understanding risks, tax implications, and pitfalls unique to the EU context.

What is a Covered Call and Why Use It?

A covered call involves selling a call option on a stock or ETF you already own. This gives another investor the right (but not the obligation) to buy your shares at a set price (the strike price) before a certain date (the expiration date). In exchange, you receive an option premium—immediate income in EUR. If the share price stays below the strike price, you keep both your shares and the premium. If it rises above, your shares may be sold at the strike price (potentially capping your upside).

Step 1: Confirm You Have Eligible Shares or ETFs

What to do: Check your portfolio for stocks or ETFs you own in lots of 100 shares (the standard contract size for most options, including on EU exchanges). For example, if you own 200 shares of Vanguard FTSE All-World UCITS ETF (VWCE), you can sell up to two covered calls.

Why it matters: You must own the underlying shares to cover the option—otherwise, you risk being forced to buy shares at market prices if assigned (a risk called being “naked”).

What can go wrong: If you try to sell a call without owning enough shares, your broker may block the trade or, worse, allow a risky naked call—potentially leading to unlimited losses.

• In DEGIRO: Go to “Portfolio”, confirm you have at least 100 shares of the stock or ETF you plan to use.
• In Interactive Brokers: Log in to Client Portal → Portfolio tab → Check position quantity.

Expected outcome: You should now identify which holdings are eligible for covered calls.

Step 2: Choose the Right Stock or ETF for Covered Calls

What to do: Select a stock or ETF with high liquidity and available options trading. Popular choices for European investors include:

• VWCE (Vanguard FTSE All-World UCITS ETF, listed in EUR)
• iShares Core MSCI World UCITS ETF (EUNL)
• Large-cap European stocks (e.g., Nestlé, ASML, Siemens)
• US stocks with EUR-denominated options access (e.g., Apple, Microsoft via Interactive Brokers)

Why it matters: Not all stocks or ETFs have liquid options markets in Europe. Illiquid options can mean poor pricing and difficulty closing your position.

What can go wrong: Thinly traded options may have wide bid-ask spreads, reducing your premium income or making it hard to exit the trade early.

Step 3: Select the Strike Price and Expiration Date

What to do: Decide at what price you’d be willing to sell your shares (strike price) and how long until the option expires (expiration date).

• Strike price: Choose a price above the current market price if you want to keep your shares, or at-the-money if you’re willing to sell.
• Expiration: Most European investors use monthly expiries (e.g., the third Friday of each month), but weekly options are available for some assets.

Why it matters: The further out-of-the-money your strike price, the less premium you receive, but the lower the chance of shares being called away. Shorter expiries offer more flexibility; longer ones lock in the premium for longer.

What can go wrong: Setting the strike price too low may result in your shares being sold below your target price, while setting it too high may result in little to no premium income.

EUR Example: Suppose VWCE trades at €110. You sell a 1-month call with a €115 strike and receive a €0.80 premium per share. You receive €80 for 100 shares.

Step 4: Place the Covered Call Trade

What to do: Enter the trade in your broker’s platform:

• In DEGIRO: Go to “Products” → “Options” → Search for your stock/ETF → Choose the strike and expiry → Click “Sell to Open” for the call option → Enter quantity (e.g., 1 contract for 100 shares) → Review and confirm.
• In Interactive Brokers: Client Portal → Trade → Options → Find your asset → Select call option → Click “Sell” → Enter quantity → Submit order.
• In Saxo Bank: Trade → Derivatives → Options → Select asset → Find call option → Place sell order.

Why it matters: The “sell to open” order creates the covered call. You receive the premium in your account (in EUR for EU-listed assets).

What can go wrong: Choosing the wrong contract (e.g., wrong strike, expiry, or asset) can expose you to unwanted risks. Always double-check before confirming.

Expected outcome: You should now see a new “short call” position in your account and an immediate credit (premium) in your cash balance.

Step 5: Manage the Position Until Expiry

What to do: Monitor your stock/ETF price and the value of the sold call option as expiry approaches.

• If the share price stays below the strike: The option expires worthless, you keep both your shares and the premium.
• If the share price rises above the strike: Your shares may be “called away” (sold at the strike price). You keep the premium and receive the strike price in cash.
• You can also “buy to close” the call early if you want to keep your shares, but this may reduce your net income.

Why it matters: Proper monitoring lets you react if your view changes or if you want to avoid assignment.

What can go wrong: Unexpected share price spikes can result in missing out on further gains, or you may incur losses if you have to close the call at a higher price.

EUR Example:

• Scenario A (stock stays at €110): Option expires worthless. You keep €80 premium, still own 100 shares.
• Scenario B (stock rises to €117): Shares are called away at €115. You keep €80 premium + €500 capital gain (€115 - €110 x 100 shares). Missed out on extra €2/share upside, but total income is €580.

Step 6: Understand Tax Implications in Europe

What to do: Check your country’s tax treatment for option premiums and capital gains. In most EU countries:

• Premium income is taxed as capital gains (same as stock sales) or as “other income”.
• Capital gains on shares sold via assignment are also taxable.
• Some countries (e.g., Germany, France) have a tax allowance for capital gains; others (e.g., Italy, Spain) tax all gains from the first euro.

Why it matters: After-tax returns may be lower than expected. You may need to declare option trades separately on your tax return.

What can go wrong: Failing to report option premium income or assignment events can result in fines or audits.

Common Mistakes with Covered Calls in Europe

• Selling calls on illiquid stocks/ETFs: Stick to large, liquid assets with tight bid-ask spreads.
• Ignoring tax reporting: Always track premiums and assignment events for your annual return.
• Choosing too low a strike price: Don’t let shares get called away at prices you’ll regret.
• Forgetting about ex-dividend dates: Early assignment risk increases before dividends—especially with US stocks.
• Using margin/leverage without understanding risks: Covered calls are meant to be conservative; don’t add leverage unless you’re experienced.

Next Steps: Refining Your Covered Call Strategy

Covered calls can be an excellent way for European investors to generate extra EUR income, especially in sideways or mildly bullish markets. To deepen your understanding, explore strategies like “rolling” calls, combining with put selling, or using covered call ETFs for a more hands-off approach. For a broader perspective, see Earn Passive Income With Covered Call ETFs: Pros, Cons, and the Best Funds for Europeans.

If you’re interested in long-term stock selection, read Compounders: Europe’s Best Stocks for Long-Term Wealth in 2026. And if you’re considering more active trading, see Can You Really Day Trade Profitably as a European Retail Investor in 2026?.

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.