Investing term
What is FX fee?
The markup applied when your broker converts your home currency to the currency of a foreign stock.
An FX fee is the markup your broker charges to convert your home currency into the currency of a foreign investment. It's often buried — quoted as a small percentage or hidden in a poor exchange rate — and easy to overlook, yet on international trades it can dwarf the headline commission.
The sting is that you usually pay it more than once. Buying a foreign stock converts your currency one way; later selling and bringing the money home converts it back, so a single round trip incurs the fee twice. On top of that, if the stock pays dividends in the foreign currency, those may be converted too. For investors buying overseas assets, FX fees are a recurring, compounding cost that a low or zero headline commission can completely disguise.
A 0.5% FX fee is charged converting in to buy a foreign asset and again converting back to sell — about 1% a round trip, on top of any commission, and easily hidden by 'commission-free' trading.
For example
Buying a US stock with euros, a 0.5% FX fee quietly adds €5 to every €1,000 converted — on top of any trading commission.
Learn it by doing
That's FX fee in theory — it clicks when you use it. Practise it hands-on in a free, interactive lesson (Stage 7, Brokers, Accounts & Getting Started).
Try the free lesson →Why it matters to you
FX fees matter because they're the hidden cost of international investing, easily missed and paid repeatedly. A broker can advertise commission-free trades while making its money on currency conversion, so the 'free' trade isn't free at all for foreign assets. Knowing to check the FX markup — and that you pay it on the way in and the way out — helps you compare brokers honestly and favour currency-hedged funds or local-currency ETFs when they're cheaper.
⚠ Ignoring FX fees on 'commission-free' foreign trades
A broker advertising zero commission can still charge a hefty currency-conversion markup on foreign trades — sometimes buried in a poor exchange rate. Assuming the trade is free because there's no commission overlooks a cost you pay twice, on purchase and sale. For overseas investing, compare FX fees, and consider funds that handle the currency for you.