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Is paying in my home currency ever actually cheaper?

Last verified 22 August 2026 · by the NoDCC editorial desk

What would have to be true for home currency to win?

Local currency and home currency are not two prices for the same purchase. They are two conversion routes, and each one costs something.

Pay in local currency and your card network converts. That route is not free. Forbrukerradet puts the payment cards' own standardised conversion markup at 1.75%, and Visa's rules describe the underlying rate as one Visa selects from the range of rates available in wholesale currency markets, a rate that may vary from the rate Visa itself receives and that an issuer may adjust further with its own fee or with a markup applied outside the network.

Pay in home currency and the merchant's or ATM operator's provider converts instead. Its rate is a wholesale rate with a DCC markup already inside it.

So the comparison is not a cost against nothing. It is one spread against another. Home currency wins only when the markup on the screen is smaller than the conversion cost already sitting inside your card's own route.

Your issuer's separate foreign charge changes that only if it behaves differently on the two routes. If it applies whichever currency you pick, it multiplies both totals and drops out of the comparison. If it falls away once the charge arrives already in your currency, it lands on the local side alone and raises the markup a conversion offer would have to beat.

Which kind of charge you hold is worth checking, because only one kind is verified here. American Express UK charges a currency conversion fee of 2.99% of the converted value of each foreign currency purchase. American Express Hong Kong takes a 2% conversion commission inside its own treasury conversion, and says plainly that charges converted by third parties before reaching Amex were converted at rates those third parties selected. Both are attached to a conversion, and a charge attached to a conversion cannot arise on a route where your card performs no conversion.

What we have not found is a verified example of the other kind: a fee charged simply because the merchant sits abroad, which would apply whichever currency you pick. Nor have we found a survey establishing which kind most issuers use. That clause sits in your own agreement, and it is the one input this page cannot supply for you.

What do the measured markups actually look like?

Four field measurements, kept apart, though two of them reach us through the same BEUC paper. Different years, different samples, and different benchmarks. Averaging them would produce a number nobody measured.

The benchmark column matters more than it looks. A markup measured against the official Visa rate has already netted out the spread the network's own conversion carries, so it is close to the like-for-like number this page needs. A markup measured against the ECB reference rate has not, so part of it is spread you would have paid on the local route anyway.

The Norwegian study, and why two numbers stand

BEUC and Forbrukerradet describe what is evidently the same body of work and publish different averages. BEUC reports a Norwegian bank study of 1,500 transactions collected on 16 transaction days in April, May and June 2016, finding home-currency conversion 7.6% more expensive on average with a largest markup of 12.4%, measured as the margin between the official Visa rate and the merchant's rate. Forbrukerradet attributes the work to Sparebanken Vest, describes a survey covering 1,500 people, and reports that customers who chose to be charged in kroner paid 6.6% more on average. The underlying bank document could not be reached to reconcile the two, so both stay on the page with their publishers attached.

That study also holds the most direct answer to this page's question. BEUC reports that only 4 of 1,500 cases where cash withdrawals were taken in Norwegian kroner were cheaper, so the consumer lost out in 99.7% of cases. It is a bank's own study of Norwegian customers abroad over three months in 2016, reaching us through a consumer organisation's position paper, so read it as the strongest single data point rather than a global finding.

Where the familiar 2.6% to 12% comes from

That range is Stiftung Warentest's 2016 test, and it can no longer be cited to Stiftung Warentest directly: the 2016 article is gone, and both URLs BEUC footnotes now serve the 2019 test instead. It is verifiable today only as BEUC's 2017 report of it. The figure also travels badly. A 2022 law firm article repeats it with a footnote pointing at an Investopedia explainer rather than at any measurement.

Why 19.00% matters

The highest markup in the older European tests is 13.7%, from Stiftung Warentest in 2019. The April 2026 Czech test found 19.00% at one Prague operator, benchmarked against the ECB reference rate on the transaction date, which is how EU law requires a markup to be expressed. Euronet, itself one of the tested operators at 15.00%, reproduced the same table on its own corporate site and described the percentages as a comparison against the European Central Bank daily exchange rate.

So treat 13.7% as a 2019 European ceiling, not a current one.

What does my own card charge for the same transaction?

This half of the sum is yours to find. It sits in your cardholder agreement, under whatever heading covers foreign currency charges or currency conversion, and no website can look it up for you.

Two reference points for scale. Forbrukerradet describes the payment cards' own standardised markup as 1.75% and a normal DCC markup as 6% to 7%, which it calls roughly four times as much. BEUC, sourcing the figure to the Financial Times, puts a typical bank markup at 0% to 3% against a DCC fee of around 10% in certain cases.

If your card was issued by a payment service provider in the EU there is a second route to your own number, and it turns on who issued the card rather than on where you are standing. Since 19 April 2021 your provider has had to send you an electronic message showing the markup after a cross-currency ATM withdrawal or card payment, then once a month per currency after that. The duty was introduced by Regulation (EU) 2019/518, which is no longer in force, and now sits in Article 4 of Regulation (EU) 2021/1230.

Three limits worth knowing. It reaches only payments denominated in euro or in a Member State's own non-euro currency, domestic conversions included and non-EU currencies excluded. It does not apply, in whole or in part, where the payment service user is not a consumer, so a business card is outside it. And cardholders can opt out of the messages, so check that you have not.

The issuer charge is one of several costs stacked inside a foreign withdrawal, and the ATM fee guide pulls them apart one by one.

Where does the break-even land?

Break-even is the total cost of your card's own conversion route: the spread inside its rate, plus any conversion-attached fee that falls away once the charge arrives already in your currency.

Take Forbrukerradet's 1.75% as the spread. If your issuer's charge applies whichever currency you pick, it cancels out of both sides and break-even stays at 1.75%. The lowest markup anywhere in the April 2026 Czech test was 6.45%, which is 3.7 times that.

Now add a conversion-attached fee. At American Express UK's 2.99%, break-even is 1.0175 multiplied by 1.0299, or 4.79%. That 6.45% still sits 1.66 percentage points above it.

In money, on a withdrawal worth 200.00 EUR at the ECB reference rate:

• Local currency at a 1.75% spread: 203.50 EUR.
• Home currency at 6.45%, the cheapest operator measured: 212.90 EUR, which is 9.40 EUR more.
• Home currency at 19.00%, the most expensive: 238.00 EUR, which is 34.50 EUR more.
• Add a 2.99% conversion fee to the local route only, the branch most favourable to DCC, and local becomes 209.58 EUR. It is still 3.32 EUR cheaper than the best screen in the test.

The percentages were measured on 1,000 CZK withdrawals; the euro amounts are illustrative arithmetic on those percentages.

The calculator models both routes, with one simplification worth knowing. It prices the local route at the ECB reference rate itself, with no network spread, which makes local look slightly cheaper than it will be. To model the comparison properly, put your card's own conversion cost in the fee box and switch the waiver checkbox on. The estimate slider stops at 15%, so anything above that goes through exact mode, which reads the markup straight off the total you paste in.

Is a low disclosed markup ever worth taking?

Small markups do exist. BEUC documented a pair of transactions made in the same minute where one carried a DCC markup of 2%. A 2% markup against a break-even of 4.79% is a win on paper.

Four things stop that from becoming general advice.

Zero commission is not zero markup

BEUC recorded a live ATM screen that indicated, in small print, a margin of 9.9% of the wholesale rate while displaying no commission at all. The word on the button and the number in the arithmetic are different things.

The benchmark may not be the ECB rate

Inside the EU, at an ATM or the point of sale and for Union currency pairs, the markup has to be expressed as a percentage over the latest available ECB euro reference rates and disclosed before the payment is initiated. Elsewhere the quoted markup sits on top of a wholesale rate the provider picks: the European Commission's own impact assessment describes the DCC amount as established by the provider on the basis of its foreign exchange reference rate plus a markup, and Amex says the same from the cardholder's side, that charges converted by third parties before reaching it were converted at rates those third parties selected. Work the percentage out from the two amounts on the screen rather than trusting the label above it.

The rate you are shown is not always the rate you pay

Mastercard's merchant-facing DCC guide tells hotels to state that the rate shown at check-in is an approximation, with the final rate determined on the date the transaction is processed. For car rental preferred customer programs it puts the rate on the day the car is returned, and requires the cardholder to be advised at selection time that the rate may change. Its 2017 predecessor said the opposite for that scenario, that the currency and rate should be the ones agreed at pick-up, so do not read it as settled. Mastercard states that these guides are guidance about its Standards rather than the Standards themselves, and the binding text is not public.

Visa's rules require an acquirer to enter presentments into interchange in the exact amount of transaction currency the cardholder authorised, so the currency you agree to is the currency that settles. The carry-through across a whole stay comes from the acquirer side: a March 2017 program guide from one Canadian acquirer describes the pre-authorisation advice automatically reusing the currency the cardholder chose at check-in, at the conversion rate in effect on the date the advice is performed.

Refunds can hand the gain back

Mastercard's guide says refunds must be processed in the same currency used in the original transaction, and its 2017 compliance guide attaches the same-rate rule to a condition: only where merchant technology allows for the storage of rates. One acquirer's published terms show what that condition means in a contract. Fiserv converts a refund at the DCC rate from the date of the original transaction if the merchant supplies the Rate ID, and at the then-prevailing rate as at the time and date the refund is submitted if it does not, while chargebacks in the same document always use the rate applied on the original date. Ordinary foreign purchases carry a milder version of the same exposure: CIBC states that a refund converts at the exchange rate on the return date and that a foreign currency conversion fee applies to the refund as well.

So the honest case is narrow. A small purchase, a disclosed markup below your own break-even, a card whose currency clause you have already read, and nothing you are likely to return. All of that has to be settled before the terminal is in your hand, which is why the standing answer stays local currency.

What to do about it

Declining adds no charge of its own, and on the two biggest networks it does not put the transaction at risk. Visa says opting to accept or decline DCC will not impact your ability to make purchases or withdraw cash internationally, and Mastercard's processing rules say that where the cardholder does not choose to have the transaction completed in their billing currency, it must be completed and processed in the local currency. Those two networks are what the sources here cover.

If you want to know whether your particular card could ever beat that, the work is four steps and you do it once.

1. Open your cardholder agreement and find the currency clause. Note the percentage, and note which kind it is: a charge attached to a conversion, or a fee charged because the merchant is abroad.
2. If it is charged because the merchant is abroad, it applies whichever currency you pick and drops out of the comparison. What is left is the spread inside your card's own conversion rate, on the order of 1.75%. That is your break-even.
3. If it is attached to a conversion, it falls away once the charge arrives in your currency. Add it to that spread. That sum is your break-even, and it is the only number a conversion offer would have to get under.
4. At the machine, read both totals. Divide the home-currency total by the local-currency amount to get the rate you are actually being offered. Put that and the ECB reference rate for the day the same way round, divide one by the other, subtract one, and you have the real markup whatever the screen calls it. Exact mode on the calculator does all of that from the two totals.

On the measured evidence, screens that would clear even a 4.79% break-even are rare: the 2019 German test put the loss usually above 5%, and the April 2026 Czech test found nothing below 6.45%. So plan on declining, and carry the sentence that ends the conversation. The refusal card says it in 40 languages, the refusal playbook covers the buttons screen by screen, and your destination page says what the machines there tend to do.

Sources

Every factual claim above is checked against a published source. Links go to the document itself, not to a summary of it.

1. BEUC, "Dynamic Currency Conversion: When paying abroad costs you more than it should", position paper BEUC-X-2017-118, 30 October 2017. Stiftung Warentest 2016 range, the Norwegian 1,500-transaction study and its 99.7% figure, the 9.9% and 2% screen observations, and the UK 0-3% versus around 10% comparison sourced to the Financial Times. beuc.eu ↗
2. Mesec.cz, "Turista u ceskeho bankomatu: Poplatek, spatny kurz, nebo oboji (TEST)", 4 May 2026, field test April 2026. Ten operators on the euro-billed card (6.51% to 19.00%) and eight on the zloty-billed card (6.45% to 15.80%), benchmarked against the ECB reference rate of 01.04.2026. mesec.cz ↗
3. Forbrukerradet (Norwegian Consumer Council), "Utbredt valutafelle lurer nordmenn for en milliard", 24 May 2017. The 1.75% standardised payment-card conversion markup, the 6.6% average, the 6% to 7% normal DCC markup and the "roughly four times" framing, and the attribution to Sparebanken Vest. forbrukerradet.no ↗
4. Visa Core Rules and Visa Product and Service Rules, 18 April 2026, Rule 1.4.3.2 (International Transaction and Currency Conversion Fee Disclosure). The local-currency route is not a mid-market route: Visa selects the rate from wholesale market rates, it may vary from the rate Visa receives, and an issuer may adjust it further outside VisaNet. usa.visa.com ↗
5. Visa Acceptance Solutions / Cybersource, "Visa Currency Conversion" DCC implementation guide. Processor-level confirmation that the DCC exchange rate is a wholesale rate with a DCC markup inside it. developer.visaacceptance.com ↗
6. American Express UK, "Using a Credit Card abroad", published 24 April 2024, updated 16 July 2025. The 2.99% currency conversion fee on each foreign currency purchase, used here as the conversion-attached fee in the break-even arithmetic. americanexpress.com ↗
7. American Express International, Inc. (Hong Kong), "Important Notice & Cardmember Agreement, Foreign Currency Charges". The 2% conversion commission inside Amex's own treasury conversion, and the statement that charges converted by third parties before submission were converted at rates those third parties selected. americanexpress.com ↗
8. Stiftung Warentest / Finanztest, "Geldabheben im Ausland: Wie Sie Kostenfallen vermeiden", Finanztest 6/2019, published 13 May 2019. 30 testers, 23 non-euro countries, 330 withdrawals and 132 card payments, DCC in 15 of 23 countries, usually over 5% and peaking at 13.7%. Also establishes that the 2016 test is no longer at this URL. test.de ↗
9. Euronet Worldwide, "Bringing clarity to the conversation about ATM currency conversion charges in Czechia", 29 June 2026. A tested operator reproducing the same April 2026 table on its own corporate site and describing the benchmark as the ECB daily rate. Corroboration only, not an independent measurement. euronetatms.com ↗
10. Kinstellar, "The problem with Dynamic Currency Conversion (DCC)", September 2022. Cited only as a worked example of the 2.6% to 12% range circulating with a footnote pointing at an explainer rather than at a measurement. kinstellar.com ↗
11. Regulation (EU) 2019/518, Article 3a and Article 2 (application dates), EUR-Lex. The originating instrument, the 19 April 2021 application date for the electronic-message and monthly-reminder duty, the consumer opt-out, and the non-consumer carve-out. No longer in force since 18 August 2021. eur-lex.europa.eu ↗
12. Regulation (EU) 2021/1230 on cross-border payments in the Union (codification), Articles 1 and 4, EUR-Lex. The currently applicable text: percentage markup over ECB euro reference rates, disclosure before initiation, ATM and point-of-sale display, and the Article 1 scope covering national and cross-border payments denominated in euro or a Member State's non-euro currency. eur-lex.europa.eu ↗
13. Visa, "Decoding Dynamic Currency Conversion" (Visa Travel consumer page), as published 22 August 2026. Visa requiring merchants and ATMs to display additional fees or markup assessed on screen and receipts, worldwide, and the statement that accepting or declining DCC will not affect your ability to pay or withdraw abroad. visa.com ↗
14. Mastercard, Transaction Processing Rules, 9 June 2026, Section 3.8 (POI Currency Conversion) and 3.8.4. The binding Mastercard text: the conversion rate and any other fee must be disclosed before the choice, and a transaction where the cardholder does not choose the billing currency must be completed and processed in the local currency. mastercard.com ↗
15. European Commission, Impact Assessment SWD(2018) 84 final, 28 March 2018. Cited for one thing only: that the DCC amount is established by the DCC provider on the basis of its own foreign exchange reference rate plus a markup. It contains no measured markup range and is not used for a percentage. eur-lex.europa.eu ↗
16. Mastercard, Dynamic Currency Conversion Performance Guide, Merchant Version, 2025 edition. Hotel check-in rate as an approximation with the final rate set on the processing date (s5.3.1), the car-rental preferred-customer return-day rate (s5.3.2.1), and the same-currency refund rule (s2.5). Guidance about the Standards, not the Standards. mastercard.com ↗
17. Mastercard, Dynamic Currency Conversion Compliance Guide ("Let's Get It Right For Our Customers"), 20 February 2017. The same conversion method and rate for refunds with its "where merchant technology allows for the storage of rates" conditional, the conflicting pick-up-rate wording for car rental, and the explicit "This document does not contain Standards" disclaimer. mastercard.com ↗
18. Visa Core Rules and Visa Product and Service Rules, 18 April 2026, Rule 1.7.5.1. Presentments must enter interchange in the exact amount of transaction currency the cardholder authorised. Cited for currency, not for any carry-through across successive authorisations. usa.visa.com ↗
19. Moneris, "Dynamic Currency Conversion Program Guide for Hospitality Merchants", March 2017. The pre-authorisation advice reusing the currency chosen at pre-authorisation, at the conversion rate in effect on the date the advice is performed. One Canadian acquirer's terminal implementation, dated on the page. moneris.com ↗
20. Fiserv, "Dynamic Currency Conversion Terms of Service". Refund converted at the original date's rate only where the merchant supplies the Rate ID, otherwise at the then-prevailing rate at submission, while chargebacks always use the original date's rate. Re-verified 22 August 2026; clause text consistent across fetches. merchants.fiserv.com ↗
21. CIBC, "Credit Card Foreign Currency Transaction Fees (Tips and Advice)". Issuer-side confirmation that a non-DCC refund converts at the rate on the return date and that a foreign currency conversion fee applies to the refund. cibc.com ↗