FX Margin
The FX margin is the difference between the exchange rate a bank, card, remittance company or payment provider gives its customer and the wholesale (interbank or mid-market) rate at which it obtains the currency — expressed as a percentage, and usually larger than the fee the customer is shown. It is the main revenue of remittance and travel-money businesses, a meaningful line for neobanks and acquirers, and the reason "no fee" international payments are not free.
- Also known as
- FX spread, Exchange-rate margin, FX mark-up
- Used at
- every currency conversion a customer does not make on a trading desk — card payments abroad, international transfers, remittances, travel money, DCC at terminals, multi-currency accounts, marketplace payouts in foreign currency
- Binding
- disclosure rules — the EU's cross-border payments regulation requires card and transfer providers to show the mark-up against the ECB reference rate; the UK's FCA has similar expectations; otherwise the margin is a commercial term rarely stated as one
- Typical levels
- 0.35–1% at the fintechs that built their brand on it (Wise, Revolut's weekday rates); 2–3% on a bank's card abroad or an international transfer; 3–7% on DCC and at airport bureaux; the scheme's own conversion for a card transaction is close to wholesale, and the issuer's mark-up is what varies
- Typical arithmetic
- on a $10,000 transfer at a rate 2.5% off mid-market, the customer loses $250 in the rate and may also pay a $25 "fee" — the fee is a tenth of the cost and the only number disclosed prominently
- Parties
- the customer, the provider setting the rate, the wholesale market and the provider's treasury behind it, and the regulators requiring the margin to be shown
How the FX margin works in practice
A customer sends €10,000 to the US. Her bank quotes "no fee" and a rate of 1.0450 when the mid-market rate is 1.0720: she receives $10,450 instead of $10,720 — a 2.5% margin, €270, in a transaction the bank described as free. A fintech quotes the mid-market rate and a 0.45% fee: €45. The difference, €225, is the FX margin, and it is where the international payments industry's revenue sits: remittance companies earn most of their money in the rate, not the fee; travel-money bureaux almost all of it; neobanks a growing share as customers spend abroad on their cards.
The market changed when the margin became visible. Wise built a company on showing the mid-market rate and charging a stated fee; the EU required, from 2020, that card issuers and transfer providers show the mark-up against the ECB rate; comparison sites and the fintechs' marketing did the rest. Margins fell at the visible end and held where customers do not look — DCC, bank transfers by people who trust their bank, corporate payments run by a treasury that never checked. Providers' treasuries manage the position between: they buy currency wholesale, hold balances in each currency, and hedge the exposure, so the margin is a spread over their own cost, which is near zero for the large ones.
For a buyer of a payments or remittance business, the FX margin by corridor and product is the revenue line to test for durability: what disclosure would do to it, and what a competitor at 0.5% would do to the customers who have not yet compared.
Example
A neobank's customers spend €2bn a year abroad on its cards. It applies the scheme's rate plus a 1% margin on weekdays (2% at weekends, when the wholesale market is closed and the bank is exposed): €24m of FX revenue on a product marketed as "no foreign-transaction fees", which is true of the fee and not of the rate. A regulator's review under the disclosure rules finds the mark-up shown in the app's transaction detail and not at the point of decision; the neobank adds it to the notification sent at the moment of the tap. Spending abroad falls 3% and the margin's revenue 5%; customers' complaints fall by more; the neobank's marketing changes from "no fees" to "the real rate plus 1%", which converts better with the customers who compare.
Common mistakes
- Comparing providers on the fee and never on the rate. - "No fee" products where the entire cost is in the margin, and a regulator that reads the marketing. - Corporate treasuries paying 2% on €50m of annual payments because nobody asked for a quote. - Weekend margins undisclosed at the point of payment. - Buyers of a remittance or card business valuing FX revenue that a comparison site could halve.