Most travellers focus on the headline exchange rate and miss the real cost — the markup hidden inside that rate, plus any transaction fees. Across a whole trip those small percentages add up to a surprising amount.
The difference between the best and worst way to pay abroad can be several percent of everything you spend. Choosing the right card and avoiding a few common traps is one of the easiest ways to save real money on any overseas trip.
Where the money goes
- Foreign-transaction fee: often around 2–3% added by standard bank cards on every overseas purchase.
- Exchange-rate margin: a markup above the true mid-market rate — the hidden cost most people never notice.
- Dynamic Currency Conversion (DCC): choosing to "pay in your home currency" at a terminal uses a poor rate with an added markup.
- Cash exchange spreads: airport and hotel exchange counters offer the worst rates of all.
How to spend abroad for less
Use a travel or multi-currency card with no foreign-transaction fee and a near-market rate, and always choose to be charged in the local currency rather than your home one. Avoid airport and hotel exchange counters for anything beyond a tiny amount of arrival cash. Carry a backup card in case one is lost or blocked, and let your bank know you're travelling so payments aren't declined for looking suspicious.
See what each method loses you
Pick a method and amount to estimate the fees and margin — then compare a fee-free travel card against a standard bank card to see the gap.
Forex cost → fees + margin on what you spend
An estimate only — actual costs depend on your specific card and the rate at the time.
Go deeper
Questions
What is a foreign-transaction fee?
It's a percentage (often 2–3%) that many standard cards add to every purchase or withdrawal made in a foreign currency. Fee-free travel and multi-currency cards don't charge it, which is why they're so much cheaper abroad.
What is the exchange-rate margin?
It's the gap between the true mid-market rate (the one you see on Google) and the rate you're actually given. This markup is often the biggest hidden cost, even when a service advertises "no fees".
Should I ever pay in my home currency abroad?
No. When a card terminal or ATM offers to charge you in your home currency (DCC), it uses a worse rate with an added markup. Always choose the local currency and let your own card do the conversion.
Card or cash abroad?
A fee-free card usually gives the best rate for most spending, with some local cash for small vendors, markets and tips. The right mix depends on the destination and how widely cards are accepted there.
Where should I never exchange money?
Airport and hotel currency exchange counters offer the worst rates, sometimes by a wide margin. Use them only for a small amount of arrival cash if you have no other option, and get the rest from a fee-free card.
Should I tell my bank before I travel?
Yes — a travel notice (or simply checking your card works abroad) reduces the chance of payments being blocked as suspicious. Carry a backup card too, in case one is lost, stolen or frozen.
Fees and exchange rates depend on your card and provider and change over time. A planning aid, not financial advice — check your own card's terms and compare current options before you travel.