Revolut FX vs Spanish Banks: 500 € Test

Spend 500 euros abroad with a Spanish bank card this summer. The bill arrives. You may have paid more than you expected. Depending on the card, the disclosed FX cost on that purchase can range from about 6 euros to 19.75 euros before ATM charges or merchant currency-conversion fees. Revolut Standard, on a weekday and within its monthly exchange limit, applies no extra exchange fee beyond its own Revolut exchange rate.

That gap is not a rounding error. It is the entire reason challenger banks built FX businesses in the first place. Spanish banks and card issuers have charged tourists, expats and remote workers commercial FX markups for decades, and many account holders cannot quote what their own card's markup actually is.

How Spanish banks price foreign currency

Every Spanish bank publishes a fee schedule. Almost no one reads it. The relevant lines for foreign currency sit inside the document for cards and accounts, usually in a table that mixes ATM withdrawals, point-of-sale purchases and currency conversion into a single block.

The pattern is real, but the percentages now differ by issuer, card type and country. For a 500 euro-equivalent purchase in US dollars, Santander Debit and Bankinter's relevant outside-SEPA card terms are around 3% (15 euros), Banco Sabadell's standard card tariff is 3.5% (17.50 euros), CaixaBank's standard Visa Classic pricing is 3.95% outside the EU (19.75 euros), and BBVA currently applies 0% to the first 300 euros per month of non-euro purchases and 3% above that threshold (6 euros on a first 500 euro purchase).

The card-network rate itself is only one part of the cost. Visa and Mastercard publish conversion tools, but the issuer can add its own fee and the applicable rate can depend on the card scheme, the transaction date and whether the merchant applies its own currency conversion. The damage is the extra FX layer. It looks small written down. It is large when you spend hundreds or thousands of euros in another currency.

The 500 euro test, side by side

We modelled a 500 euro-equivalent purchase paid in US dollars on a regular weekday in May 2026 and compared the disclosed commission layer for five Spanish bank/card products with Revolut Standard. To keep the example transparent, the calculations below isolate the provider's stated FX commission and do not assume that Visa, Mastercard, the ECB reference rate and Revolut's own exchange rate are identical on the day.

The Revolut row at zero euros is the free Standard plan, on a weekday, with the user under the 1,000 euro monthly exchange limit. It means no extra exchange fee; Revolut still uses its own variable Revolut exchange rate rather than a guaranteed interbank rate. Those conditions matter.

Where Revolut catches you

Weekends add another fee. Revolut's Spain fee schedule says Standard customers pay a 1% weekend exchange fee between 5pm New York time on Friday and 6pm New York time on Sunday. The result for you is that the same 500 euro-equivalent purchase on a Saturday afternoon costs 5 euros in weekend exchange fee instead of zero, before considering any difference between the Revolut exchange rate and a card-scheme or ECB reference rate.

ATM withdrawals are the third trap. Revolut Standard gives you the first five withdrawals or the first 200 euros of ATM withdrawals per billing-cycle month, whichever comes first. After that, Revolut applies 2% per withdrawal with a 1 euro minimum. Spanish bank cards usually charge a flat commission for foreign ATMs as well, plus any FX markup, plus whatever the foreign ATM operator decides to add on the screen before you confirm.

Credit cards do not save you

Credit cards do not all follow the same FX pricing. Santander's current standard credit card says non-euro purchases carry 0 euros of FX commission when you choose the local currency, while Santander Debit remains a 3% product; BBVA has a monthly non-euro purchase allowance before 3% applies; and Openbank credit cards advertise purchases in any currency without Openbank's own FX commission. The fair comparison is the exact card in the customer's wallet, not a blanket debit-or-credit rule.

If you want to see what your BBVA, Santander or other Spanish card has charged you on FX so far this year, you can run a free fee analysis in two minutes without signing up.

What a year of foreign spending actually costs

Pick a realistic Madrid profile. The person travels to the UK twice a year for work, takes a week of holiday outside the euro area, books a flight in dollars, pays a few subscription services billed in dollars, and orders the occasional product from a non-EU site. That can be 4,000 to 6,000 euros of foreign-currency card spend in a year for someone who is not even a heavy traveller.

A 3% markup on 5,000 euros is 150 euros. A Revolut Standard user with the same profile could pay zero extra exchange fees only if the spend stays under the monthly limit and most of it happens on weekdays. The practical point is simple: FX fees look small per transaction and much larger over a year.

Where Spanish banks actually compete

Treat this as a product-by-product comparison rather than a bank-by-bank rule. If you want a Spanish banking group, check the exact current card terms before assuming a 3% FX charge. For a wider view of which Spanish accounts have the fewest fees overall, our comparison of fee-free accounts in Spain covers the maintenance and card costs that sit alongside FX.

How to know what your bank actually charges you

To estimate your FX cost, pull your last six months of card transactions. Filter for payments made in a currency other than euro. Find the original transaction amount in the foreign currency on the statement. Divide your euro charge by the foreign-currency amount, and that is the effective rate you paid. Compare it with a benchmark such as the ECB reference rate, Visa rate or Mastercard rate for that day where available. The difference is an estimate of your FX cost, which can include card-scheme rates, bank markups and any merchant dynamic-currency-conversion spread.

Banknaked does this automatically once you connect your account. We surface every foreign-currency transaction, the rate you were charged, a benchmark reference rate where available, and the estimated cumulative FX cost you have paid year to date. The total tends to surprise even people who already suspected their bank was taking too much.

Your statement rarely makes the FX cost obvious. We think you should see the number anyway.

Sources:
- Banco de España: foreign-exchange conversion and banking-fee disclosure guidance
- BBVA Spain: card use outside the euro area
- Banco Santander Spain: card use abroad
- CaixaBank Payments & Consumer: Visa Classic standard card contract and pricing annex
- Banco Sabadell: card services tariff, Epígrafe 90
- Bankinter: Tarjeta Combo pre-contractual information
- Bankinter: EVO migration FAQ
- Revolut Spain: Standard plan fees
- Openbank: travel-card conditions
- Visa: exchange-rate calculator
- Mastercard: currency-conversion tool
- European Central Bank: euro foreign-exchange reference rates