Currency gain on foreign shares
How exchange rates change the taxable gain on foreign shares
The currency gain on foreign shares tax is about how exchange rate shifts affect the profit or loss you report on overseas shares. You're almost always taxed in your home currency, so swaps between, say, dollars and euros can change the result, sometimes a lot, even when the price of the share on its foreign exchange never moves.
This comes up with non-domestic stocks, exchange-traded funds (ETFs), and investments valued in something other than your home currency. The bottom line for tax is always what it works out to in your country’s money, not just the market price in dollars or pounds.
Worked example: flat share price, currency loss
Suppose you’re living in a eurozone country. You buy shares for 1,000 US dollars when the exchange is 1 dollar to 0.90 euros. That means your cost in euros is 900. One year later, the share is still worth 1,000 US dollars, but the US dollar is weaker, now it’s 0.80 euros per dollar. Selling those shares gives you 800 euros.
So you’re looking at a loss of 100 euros, even though the price of the share itself was flat. The direction can flip: if the dollar gets stronger instead, your home-currency outcome can be a gain. Not every tax system treats these currency differences the same way; some split out the currency shift as its own gain or loss, which means you might need to declare it separately.
Dividends, withholding and currency conversion
Dividends paid in another currency usually need to be converted on the date you actually receive the payment. If a foreign government takes withholding tax from your dividend, you might get some credit back in your own country, but there are limits, and the rules are not always the same everywhere. The exchange rate used for the conversion can change the reported figure, as can the actual date you receive the funds.
If you want more detail on withholding tax, have a look at what withholding tax on foreign income is.
Records to keep for currency gains on shares
You’ll need a clear record of when you bought and sold, for how much in the share’s currency, and what exchange rates were in effect on those dates. Your broker’s statements often list everything in their main currency, which may not match your tax filing. If you stick to one exchange rate source (as your tax authority allows), your documentation will be easier to explain if you’re ever asked.
For guidance on the conversion process, see which exchange rate to use for tax reporting.
Frequently asked questions
Do currency gains on shares get taxed separately?
They sometimes do. Some countries split out the currency gain or loss, taxing it separately from the gains on the actual shares; other systems just combine both into one final result in home currency. It’s best to consult either a tax adviser or your tax authority to be sure how your country does it. Keep track of both prices and the relevant exchange rates just in case.
Can I rely on my broker's tax report for currency gains?
You shouldn’t rely only on a broker’s report. While those reports are a useful base, they may use exchange rates, cost bases, or reporting conventions that aren’t accepted by your tax office. If your own records don’t match what they provide, or you spot a difference in reporting currency, compare everything carefully and check with either your tax office or a professional adviser.