A reader wrote in with a familiar story: a week in Portugal, two cards in the wallet, and a nasty surprise on the statement when they got home. The hotel bill had been charged in their home currency, not in euros. The rate the terminal used was about 4% worse than the interbank rate on that day. On a €900 hotel bill that is roughly €36 — the price of a good dinner — gone for a service nobody asked for.
The question behind that story is the one this article answers: оплата картой за границей or cash from an ATM — which actually costs less, and how do you set the proportion for your own trip? The short version: the card wins when your bank does not charge a conversion markup and you pay in the local currency; cash wins for small purchases, markets and places that do not take cards. The long version is a set of beliefs people carry into the airport that quietly cost them money.
Myth 1: "The terminal rate is just the bank's rate, there's nothing to choose"
This is the most expensive misconception on the list, and it is not even about your bank. When a card terminal abroad offers to charge you in your home currency, that is called dynamic currency conversion (DCC). The merchant or the payment processor sets the rate, not your bank, and it is typically a few percent above the market rate. More on the topic: “Your First Credit Card Grace Period”.
How it looks in practice: you tap the card, the screen says "Pay in USD? Yes / No", and the yes button looks helpful because you can see the number in money you understand. You press yes. The conversion is done on the spot at a rate you cannot check, and your bank may still add its own fee on top.
The rule that saves the most money on a trip is boring and absolute: always pay in the local currency, even if the terminal offers your own. If the cashier asks, say the local currency name out loud. If the screen offers a choice, choose the currency of the country you are standing in.
Myth 2: "Cash is always cheaper because there is no bank in the middle"
Cash feels free because the cost is hidden in the exchange rate and the ATM fee, not printed on a receipt. In reality, getting cash abroad has three separate costs, and they stack:
- The ATM owner's fee — a flat charge per withdrawal, often €3–€7 at foreign machines, sometimes more at airports and tourist zones.
- Your bank's withdrawal fee — a percentage of the amount plus, sometimes, a fixed charge.
- The conversion markup — the gap between the rate you get and the mid-market rate, which is how the ATM and the card network actually earn.
Here is the arithmetic that matters. Imagine you need €300 and the ATM charges a €5 owner fee, your bank takes 2%, and the rate markup is 1.5%. The €5 is 1.7% of the amount, the 2% is €6, and the markup is about €4.50. You paid roughly €15.50 to hold €300 — about 5%. Withdraw €600 in one go and the same flat fees shrink to about 3.4%. One large withdrawal beats three small ones, and that is the single most useful cash habit on a trip.
Myth 3: "If my bank has no foreign transaction fee, I'm covered"
No foreign transaction fee is necessary but not sufficient. Three things still decide what a card transaction really costs:
- The network rate. Visa and Mastercard publish daily rates that sit close to the mid-market rate. That part is usually fine.
- Your issuer's markup. Some cards add nothing; many add 1.5–3% on every foreign purchase. This is the line to find in your card's terms before you fly, not after.
- Whether you accepted DCC. A card with zero markup still loses if you press "pay in my currency" at the terminal.
A quick way to test your own card before a trip: make one small purchase abroad, then compare the amount charged with the mid-market rate for that date (any currency converter shows the historical rate). The gap, in percent, is your real cost. Do this once and you will know your card better than any comparison article can tell you.
| Cost component | Card, paid in local currency | Cash from an ATM |
|---|---|---|
| Conversion markup | 0% on a good card, 1.5–3% on an average one | Usually built into the ATM rate, roughly 1–3% |
| Fixed fee | None | €3–€7 per withdrawal at the machine, plus your bank's fixed charge |
| Percentage fee | Usually none for purchases | Often 1–2% of the withdrawn amount |
| Best for | Hotels, restaurants, tickets, fuel, larger purchases | Markets, small cafés, tips, rural areas, taxis without terminals |
Myth 4: "I'll just take cash from home — it's simpler"
Buying foreign cash at a home bank or airport kiosk is the most expensive of the three routes in most cases. The spread on physical banknotes is wider than on card transactions, because the seller has to store, insure and ship the notes. Airport kiosks are the worst of all: convenience priced at a premium.
There is a narrow case where home cash makes sense: a small arrival buffer — enough for a taxi, a coffee and a SIM card — so you are not hunting for an ATM at midnight with luggage. Think €50–€100 equivalent, not your whole budget. The rest is cheaper to get at a destination ATM or to spend on a card.
The same logic applies to travel money cards and prepaid wallets: they can be fine, but check the top-up fee, the monthly maintenance and the rate they apply on weekends, when markets are closed and spreads tend to widen. More on the topic: “Traveler's Insurance in 2026”.
Myth 5: "Every place takes cards now, so I don't need cash at all"
This one is true in Stockholm and false in a village in Sicily, and the difference costs you time rather than money. The practical split depends on the route, not on the country's reputation:
- Cities in Northern and Western Europe, Japan's major cities, the US and Canada: cards are accepted almost everywhere, and cash is a backup. Keep €50–€100 equivalent for the odd cash-only stall.
- Southern and Eastern Europe, rural areas, markets, small family restaurants: cash is still normal. Budget 30–40% of daily spending in cash.
- Southeast Asia, parts of Latin America and Africa: cash dominates outside hotels and malls. Plan on 50% or more in cash, and withdraw from bank-branded ATMs inside branches rather than standalone machines on the street.
A simple rule for planning: estimate your daily spend, multiply by the number of days, and set the cash share by the region — then withdraw that amount in one or two visits to an ATM rather than five.
Myth 6: "The ATM's advertised rate is the rate I get"
Many ATMs abroad show a conversion offer on screen — the same DCC trap as at the till, in a different costume. The machine offers to convert your withdrawal into your home currency at "its" rate. Decline it and let your bank do the conversion. The screen may make declining look awkward, with the local-currency option in small print; that is the point.
Two more ATM habits that pay for themselves:
- Use bank ATMs, not independent ones in shops, bars or hotel lobbies. The owner fee is usually higher and the rate worse.
- Withdraw during banking hours if you can. Some issuers apply a less favourable rate on weekends, when the interbank market is closed.
Myth 7: "I'll sort out the receipts and the budget when I'm back"
The receipts are where the real cost becomes visible, and almost nobody looks. A trip of ten days can easily produce thirty card transactions and five cash withdrawals, and reconstructing which ones carried a markup by hand is an evening of work nobody does.
This is one of the few places where an AI twin earns its keep without drama. If you connect your bank statement to asibiont.com, the agent can import it as a file, sort transactions by currency and category, and build a report for the trip period — so the effective cost of your card versus your cash becomes a number instead of a feeling. It can also recognise a photo of a receipt and record it as a transaction, but only after you confirm it: the vision model does not guarantee accuracy, and a blurry photo of a faded till slip is exactly where it fails. The decision about which card to take and how much cash to withdraw stays yours.
Myth 8: "A travel card is always better than my regular one"
Sometimes, but the marketing hides the trade-offs. A dedicated travel card often has no foreign transaction fee and a good rate — and charges for ATM withdrawals above a monthly limit, or adds a fee after a certain number of withdrawals. A good everyday card with no foreign fee can beat it for purchases while losing on cash.
The honest way to choose is to price your own itinerary. Take your estimated card spend and cash need, apply each card's published fees, and compare the totals. It takes ten minutes and beats any "best travel card" list, because those lists optimise for a generic traveller who is not you.
If a card is lost or a charge looks wrong, the dispute process is a separate skill entirely — the article on Chargeback walks through what actually gets money back and what does not. And if a trip is cancelled before it starts, the refund route runs through a different mechanism: Chargeback vs Travel Insurance. More on the topic: “Your Flight Was Cancelled or Your Bag Vanished”.
How to price your own trip in fifteen minutes
Forget generic advice and run your numbers. You need four inputs: daily spend, trip length, the cash share for your region, and the fees your card actually charges.
- Estimate daily spend in local currency. Use your last trip or a booking total divided by nights.
- Set the cash share from the region table above — 10–20% for card-friendly cities, 30–40% for Southern Europe, 50%+ for cash economies.
- Price the cash. Take the cash total, add the ATM owner fee, your bank's percentage and fixed fee, and the rate markup. If the total fee is above roughly 4%, withdraw a larger amount less often.
- Price the card. Apply your issuer's markup to the card total. If it is zero, the card is almost certainly the cheaper route for everything it can pay for.
- Check the small print for weekend rates, minimum withdrawal amounts and any per-transaction cap.
A worked example: a ten-day trip, €120 a day, €1,200 total. In Portugal, 30% cash means €360 withdrawn once: a €5 owner fee, 2% bank fee (€7.20) and 1.5% markup (€5.40) — about €17.60, or 4.9% of the cash. The remaining €840 goes on a card with no foreign fee, costing nothing extra. Total friction: under €18 on a €1,200 trip.
Now the same trip on an average card with a 2.5% foreign fee and three small withdrawals of €120: three owner fees (€15), the bank's percentage (€7.20), the markup (€5.40) and the card fee on €840 (€21). Total friction around €48.60 — nearly three times more for the same holiday.
What actually decides the outcome
The card-versus-cash question is not a national stereotype; it is arithmetic on your card's terms and your route's cash intensity. Two travellers with identical itineraries can differ by 3% of their total spend purely because one declined the terminal's currency offer and the other did not.
Before you fly: find your card's foreign transaction fee in the terms, decide your cash share by region, plan one or two large ATM withdrawals instead of many small ones, and rehearse the sentence "charge me in local currency". Those four steps are worth more than any packing list.
If you want the paperwork side handled, you can hand the AI twin at asibiont.com your bank statement after the trip and ask it to break down what the card and the cash actually cost you — and set a reminder before your next departure to check the card's terms again.