Amex Abroad: Foreign Transaction Fee, Exchange Rate and the DCC Trap

There's one number that stays constant across the German Amex lineup, regardless of what you pay in annual fees: 2 percent. That's the cost of every payment in a currency other than the euro — on the free Blue Card just as much as on the Platinum at 720 euros a year and on the Centurion. If you pay a premium annual fee and then carry the same foreign currency charge as a free card, that probably isn't what you expected.

But the 2 percent is only half the bill. The other half sits inside the exchange rate itself, and nobody talks about it, because it never shows up as a line item on your statement.

How Amex actually converts

Amex describes the mechanics fairly openly in its own FAQ. Three points matter:

• Conversion happens on the processing date, not the purchase date. There are often several days between tapping your card and the charge being posted. With stable currencies that's noise. With volatile ones it isn't.
• Everything except US dollars goes through two conversions. According to Amex, foreign currencies are first converted into US dollars, and that amount is then converted into euros. Pay in Thai baht or Mexican pesos and you're paying for a detour through a third currency.
• The rate is an interbank rate, "increased by a foreign transaction fee of 2 percent". The fee is not a separate line on your statement — it's baked into the rate. That's exactly why most people never see it.

The last point is the important one. Because the fee lives inside the rate, you can't extract it from your statement, and you can't verify whether the underlying interbank rate was fair.

The rate against Visa and Mastercard

Amex publishes the gap itself. Its FX vs ECB comparison page lists the percentage difference between Amex's conversion costs and the ECB reference rate, currency by currency. If you want to know what a payment really costs, that's the page to read — not the fee schedule.

The German site Travel-Dealz has lined the numbers up in a comparison of Visa, Mastercard and Amex rates. On a sample day in June 2025, Amex sat roughly 2.45 percent above the ECB rate for the US dollar, around 2.23 percent for sterling, around 2.64 percent for the Chinese yuan. Visa and Mastercard were under half a percent on the dollar that same day.

Two things follow. First: the 2 percent is a floor, not a ceiling — for more exotic currencies the rate markup stacks on top. Second: the real-world gap to a Visa or Mastercard without a foreign transaction fee lands somewhere around 1.5 to 2 percent. Not more, but not less either. Snapshots like these aren't permanent, but the mechanism behind them is.

Cash is the most expensive route

Withdraw cash with a German Amex and you pay, per Amex's own cost overview, 4 percent of the amount, minimum 5 euros. In a foreign currency, the foreign transaction fee comes on top. On 100 euros' worth of local cash you're quickly looking at around 6 euros for the privilege of accessing your own money.

There's no use case where that math works out. Cash abroad comes out of a debit or credit card that does it for free. The Amex stays in your pocket for payments.

DCC: the trap at the terminal

Dynamic Currency Conversion is the question the card terminal or hotel kiosk asks you: "Pay in euros or in local currency?" Euros sounds helpful, because you immediately understand the number. That's precisely the business model.

With DCC, Amex isn't doing the conversion — the merchant's payment processor is. It sets the rate itself, and at that moment it competes with nobody: you're standing at the register and expected to tap "yes". Since April 2020, EU Regulation 2019/518 has required the markup over the ECB reference rate to be shown before the transaction, on the screen and on the receipt. You're free to decline DCC, and the provider isn't allowed to nudge you.

There's one argument DCC providers like to lean on: if the transaction is already billed in euros, Amex performs no conversion — so the foreign transaction fee embedded in the rate doesn't apply. In pure billing logic, that's correct. It simply moves the cost from Amex to the DCC provider, whose markup is now sitting visibly on the display. Read it before you accept.

The practical rule still holds: decline, and pay in local currency. Not because DCC must always be worse on paper, but because declining means you're calculating with a known quantity instead of a rate a third party sets for you at the till. And because DCC tends to appear exactly where you can't compare calmly: at the rental car counter, at hotel check-out, at a machine with a queue behind you.

Three places where DCC regularly slips through:

• Hotel folios already printed in euros at check-out. You can ask to be charged in the local currency instead.
• Rental cars, where the billing currency is stored in the contract and surfaces later on the deposit or final charge. With rental cars it pays to read the contract anyway.
• Online stores with a country selector that offer you euros while settling in dollars.

What this means for card choice

The clean fix isn't dropping Amex — it's splitting payments. Amex inside the eurozone and for anything where the points or the insurance coverage make the difference. A fee-free Visa or Mastercard for payments outside the eurozone and for cash. That split is the reason every workable card combination includes a second card that costs nothing and does nothing except pay cheaply abroad.

There's also the plain fact that Amex isn't accepted everywhere outside Germany either — the acceptance question gets sharper in southern Europe or across Asia.

When this is not worth thinking about: if you spend a few hundred euros a year outside the eurozone. Two percent on 500 euros is 10 euros. That's not a reason to switch cards, and definitely not a reason to weigh two cards against each other at the counter. It gets interesting in the mid four figures a year — or when you already hold a second card and only need to change the habit.

Conversely, there are cases where the Amex stays the right card abroad: large travel bookings, where insurance coverage or points are worth more than 2 percent, and anything where, if it goes wrong, you'd rather deal with Amex's dispute process than a direct bank's.

The difference with US cards

A point that surprises a lot of people: US-issued Amex premium cards typically carry no foreign transaction fee at all. Same brand, same product promise, different fee logic. It's one of the differences that shapes the comparison between US and German credit cards, and one of the more concrete reasons to look into US cards in the first place.

Bottom line

The Amex Germany foreign transaction fee is easy to understand and hard to see: 2 percent, on every card, folded straight into the exchange rate. In practice the gap to a fee-free Visa or Mastercard runs about 1.5 to 2 percent depending on the currency, and considerably more on cash. All of it is checkable through the ECB difference Amex publishes itself.

The conclusion is unglamorous: a second card for foreign currency, Amex for the eurozone and for bookings where coverage beats the rate, never cash on Amex. And at the terminal, decline the euro option — not on principle, but because then you know what the payment costs instead of having a third party tell you at the register.