Travel topic · Money
Dynamic currency conversion: why to decline
Always decline the offer to pay in your home currency and choose the local currency instead; the terminal rate typically adds 3–8% over the interbank rate, and your own card's foreign fee is usually smaller.
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When a card terminal or ATM offers to charge you in your home currency, the rate is set by the merchant's bank, not yours. Here is how to spot it, what it costs, and the one sentence that stops it.
Key facts
- What it is
- The card terminal or ATM converts your bill into your home currency at the point of sale, using its own rate
- Typical markupcheck
- 3–8% above the interbank rate, on top of any fee your own bank charges
- What to say
- "Local currency, please" — or press the button marked with the local currency code, not your own
- Where it appears
- Card terminals in shops, hotels and taxis; some ATMs; online checkout pages; PayPal and airline payment screens
- Your own card's feecheck
- Usually 0–3% foreign transaction fee, and often a better wholesale rate
- ATM version
- Some ATMs offer to convert the withdrawal; declining keeps the rate with your bank
- Refundscheck
- Hard to reverse after you have pressed accept; ask for a void and re-run in local currency if you catch it at the till
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Short answer
Dynamic currency conversion (DCC) is the offer, made at the moment you pay, to have the amount charged in your home currency instead of the local one. The merchant's bank or the terminal operator picks the exchange rate. That rate is not the wholesale rate you see on currency sites; it is the wholesale rate plus a margin, and the margin is where the money is made.
The fix is simple and works almost everywhere: choose the local currency. If you are American paying in France, that means euros. If you are British paying in Japan, that means yen. Your own bank then does the conversion at its own rate, which is usually closer to the real one, and charges whatever foreign transaction fee your card carries — often nothing, sometimes up to 3%.
The one exception is a card that charges a very high foreign fee and a terminal that offers a very tight DCC rate. That combination is rare. For most travellers, on most cards, declining is the cheaper choice.
Do
- Say the currency name, not "no" — "euros, please" is clearer than a shake of the head.
- On a card machine, the local currency is usually the left or top button; read both before pressing.
- Keep the receipt until the charge posts, so you can compare what you were quoted with what you were billed.
Watch out
- Once you press accept, the conversion is done. It is very hard to reverse after the fact.
How to spot it
DCC shows up as a question, not a charge. The cashier asks whether you want to pay in your currency or theirs. Sometimes it is a screen with two amounts and two buttons. Sometimes it is buried in a card reader you are handed without explanation, with your home currency pre-selected.
The tell is the currency code on the screen. If you are in Thailand and the terminal shows USD, GBP, EUR or AUD rather than THB, that is DCC. The same applies at an ATM: if the machine offers to convert your withdrawal into your home currency before dispensing, that is DCC too.
Online, the pattern is a checkout page that shows a price in your currency with a small note that the conversion is handled by the merchant. Airlines, hotel booking sites and some payment processors do this. The rate is set by them, not by your card issuer.
| Where | What you see | What to do |
|---|---|---|
| Shop or restaurant terminal | A screen with two amounts, your currency pre-selected | Choose the local currency |
| ATM | "Convert to your home currency?" before dispensing | Decline; take the local currency |
| Hotel checkout | Bill quoted in your currency at a fixed rate | Ask for the local-currency bill |
| Online checkout | Price shown in your currency, conversion by the merchant | Look for a currency toggle and switch to local |
| Taxi card machine | Handed a reader with your currency already highlighted | Press the local currency button before tapping |
The wording varies by country and terminal maker; the currency code is the reliable signal (check).
Do
- If the cashier insists the machine only does your currency, pay cash or use a different card if you can.
- Screens sometimes default back to your currency after a timeout — check again before you tap.
Show 6 sectionsHideWhat it costs, ATMs, hotels and online checkout, Exceptions and edge cases, What to do before you travel, Questions people ask, Related
What it costs
The markup on DCC is usually quoted as a percentage over the rate the terminal operator gets. Published comparisons have put it commonly in the 3–8% range, and it can be higher on small transactions or at airport and hotel desks where competition is thin. That is the whole cost of the service, and it is invisible on the receipt because the receipt shows only the converted total.
Your own card's cost is separate and usually smaller. Many cards aimed at travellers charge no foreign transaction fee at all; mainstream cards often charge around 3%. Some banks add a fixed ATM fee abroad, typically a flat amount per withdrawal rather than a percentage.
Put the two side by side. A 3% DCC markup on a €100 dinner costs about €3. A no-fee card converting the same €100 costs nothing extra. A 3%-fee card converting it costs about €3 as well — so on that card the two are close, and the DCC rate could even win if the terminal's margin is at the low end. On a no-fee card, DCC is almost always the worse deal.
| Scenario | Cost on €100 | Notes |
|---|---|---|
| DCC at 3% markup | About €3 extra | Charged by the terminal, on top of any card fee |
| DCC at 6% markup | About €6 extra | Common at hotels, airports and tourist-area desks (check) |
| No-fee travel card, local currency | €0 extra | Bank converts at or near the wholesale rate |
| 3%-fee card, local currency | About €3 extra | Charged by your bank, not the merchant |
| 3%-fee card, DCC at 3% | About €6 extra | You pay both margins |
Illustrative percentages; actual rates vary by terminal, card and day (check).
Watch out
- Small purchases hide the cost well: 5% on a €4 coffee is 20 cents, but the same margin on a €900 hotel bill is €45.
ATMs, hotels and online checkout
At an ATM, the DCC offer usually appears after you enter the amount and before the cash comes out. Decline it and the withdrawal is processed in local currency by your bank. The ATM's own operator fee, if any, is separate and is shown on screen — that one you generally cannot avoid, and it is worth comparing a couple of machines before you commit.
At hotels, the front desk may quote your bill in your home currency at a fixed rate, especially at checkout. Ask for the bill in local currency and let your card do the conversion. The same applies to car rental desks and airport transfer counters, where the rate is often at the poor end of the range.
Online, the merchant may present prices in your currency by default. Look for a currency selector near the total and switch to the local currency if the option exists. If it does not, the conversion is baked in and there is nothing to decline — the price you see is the price.
Do
- Withdraw larger amounts less often to reduce flat ATM fees.
- If a machine offers DCC and you decline, some machines ask again on the next screen; keep declining until the local currency is confirmed.
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Exceptions and edge cases
There are a few situations where the usual advice needs a second look. If your card charges a high foreign transaction fee and the terminal is offering a rate close to the wholesale one, the DCC price can be lower than what your bank would charge. You cannot know the terminal's margin at the till, so this is a judgement call rather than a rule.
Cards issued in one currency but billed in another, multi-currency accounts and some fintech cards handle conversion differently. A card that holds a local-currency balance may convert at no cost, which makes declining clearly right. A card with a poor rate for the local currency may make DCC look better than it is.
Refunds are the awkward case. If you accept DCC and later return the item, the refund is converted back, and you can lose on both legs. If you notice the DCC charge at the till, ask the cashier to void it and re-run the payment in local currency — that is the only clean fix.
Finally, some merchants genuinely cannot process local currency on their terminal, particularly small operators in countries with capital controls or older equipment. In that case the choice is DCC or cash, and cash may be the better option.
Do
- Check your card's foreign transaction fee before you travel; it decides whether DCC is ever worth accepting.
- Carry a small amount of local cash for merchants whose terminals only offer DCC.
Watch out
- Do not assume a refund will return the same amount you paid when DCC was involved.
What to do before you travel
Know your card's foreign transaction fee. That single number tells you how much room DCC has to be the better deal, and for most no-fee cards the answer is none. If your card charges around 3%, DCC is only worth considering when the terminal's margin is unusually low.
Tell your bank you are travelling if it still requires it, and check whether it blocks cards in the countries you are visiting. Carry a second card from a different network, since a terminal that will not process local currency on one card may behave differently on another.
Set a rough mental rate before you go, so you can sanity-check a converted total at a glance. If a €100 bill comes back at a number well above your rough conversion, the terminal has taken its cut.
Keep receipts for large purchases until the charges post, and compare the amount you were quoted with the amount your bank billed. If a merchant converted without asking, that is worth a complaint to your card issuer.
Questions people ask
Dynamic currency conversion: what do I need to know?
It is an offer to charge you in your home currency at a rate set by the merchant's bank. The markup is commonly 3–8% over the wholesale rate. Decline and pay in the local currency; your own card's conversion is usually cheaper, especially on a card with no foreign transaction fee.
What are the most common mistakes?
Pressing the pre-selected home-currency button without reading the screen; assuming the receipt shows the markup (it does not); accepting DCC on a large hotel or car rental bill where the percentage cost is biggest; and not checking your card's foreign transaction fee before deciding.
What should I do before I travel?
Check your card's foreign transaction fee and any ATM fees abroad, carry a second card from a different network, note a rough exchange rate for the countries you are visiting, and keep receipts for large purchases so you can compare the quoted amount with what your bank billed.
Is dynamic currency conversion ever cheaper?
Occasionally, if your card charges a high foreign transaction fee and the terminal's margin is unusually low. You cannot see the terminal's margin at the till, so for most travellers on most cards, declining is the safer and usually cheaper choice.
Can I undo it after I have paid?
Rarely. If you catch it at the till, ask the cashier to void the transaction and re-run it in local currency. After the charge posts, reversing it is difficult and refunds can lose money on the conversion back.
Does the same thing happen at ATMs?
Yes. Some ATMs offer to convert your withdrawal into your home currency before dispensing. Decline and take the local currency; the ATM's own operator fee, if any, is separate and shown on screen.
Deep dive
Every source; changeable facts are marked check and were last checked Sep 2026