Also called: Currency conversion fee, FX fee
What a foreign exchange fee is
A foreign exchange fee is a cost tied to converting money between currencies. For example, if a customer pays in euros and your processor pays you in US dollars, the conversion reduces your proceeds. Banks, payment processors and intermediary banks charge conversion fees or add a markup to the exchange rate.
The cost may appear as a separate fee or be built into a less favorable exchange rate. A cross-border payment does not automatically involve currency conversion. If the customer pays and your business receives US dollars, there is no FX conversion fee for that payment.
A low stated FX fee does not guarantee a low conversion cost if the exchange rate includes a markup.
How it affects your costs
A published merchant estimate in 2023 placed FX costs at around 1% to 3% of the converted amount. The final charge depends on the provider's rate and any separate fees from banks or intermediaries. These costs are separate from card processing fees, such as interchange, network fees and processor markup.
For example, a 1% exchange-rate markup on $1,000 adds $10 in conversion cost, an illustrative amount. When you accept many international sales, conversion costs reduce your net proceeds and profit on each sale. They also make the value of a payment less predictable when exchange rates move between quoting and conversion.
Where conversion costs hide
A separate FX fee is only part of the picture. Compare the provider's exchange rate with a mid-market rate for the same currency pair and date to see whether the rate includes a markup. Also look for bank or intermediary charges that reduce the amount deposited after conversion.
Do not confuse a merchant's conversion cost with a foreign transaction fee charged to a cardholder by their bank. They are separate charges, and both can apply to a single purchase. For your business, reconcile the original transaction currency, the converted payout and each listed fee against your settlement records.
What you can actually change
You cannot control exchange-rate movements, but you can compare the full cost of converting and choose how your business receives and uses foreign currency. For recurring international sales or supplier payments, compare conversion costs alongside transfer fees and settlement timing.
- Compare the provider's exchange rate with a same-day mid-market rate and include separate bank or intermediary charges.
- Review whether your payment setup converts each sale immediately or supports multi-currency processing and balances.
- For regular payments in one currency, assess whether receiving and spending that currency through a multi-currency account avoids repeated conversions.
- Reconcile each foreign-currency sale against the original amount, converted payout and any separate FX fee.
- Compare the rate. For a recent foreign-currency transaction, compare the rate used for conversion with the mid-market rate for that currency pair and date.
- Trace the payout. Match the original sale amount to the converted deposit and identify separate bank or intermediary deductions.
- Review currency needs. List the currencies your business regularly receives and pays, then compare conversion costs against multi-currency account options.
Frequently asked questions
What is a foreign exchange fee?
It is a cost charged when a payment provider or bank converts money from one currency to another. The cost can be a separate fee, a markup built into the exchange rate, or both.
How much do foreign exchange fees cost?
A published merchant estimate in 2023 put FX costs around 1% to 3% of the converted amount. Your total depends on the exchange-rate markup and any separate fees charged by banks or intermediaries.
Is a foreign exchange fee the same as a foreign transaction fee?
No. An FX fee is tied to converting one currency into another. A foreign transaction fee is charged by a cardholder's bank for certain transactions processed through a foreign bank or network, and it is separate from your business's conversion costs.