A 0% FX fee can still leave conversion costs
The crypto conversion, exchange rate, card FX fee and terminal’s currency offer are different layers. Separate them before a small percentage turns into an expensive receipt.
A €100 dinner can begin as fiat, a stablecoin or another crypto asset. One conversion may happen before the card pays. Another may happen because the merchant charges a different currency. The terminal can then offer its own converted total.
Not every purchase uses every layer. First establish the funding route. Our money-flow guide explains the main models. Then identify which conversion decisions apply.
01 · Follow the currencies
The fee label matters less than the conversion path
Write down three things: the asset funding the purchase, the card’s spend or settlement currency, and the merchant currency. A fourth number appears if the terminal offers to bill you in another currency.
That simple map tells you whether you are looking for an asset-conversion price, a card FX row, a DCC quote, or some combination that the product terms allow.
One purchase, two checkout routes
Follow who converts the money
The merchant charges €100
Network or base exchange rate converts if required
The card programme’s applicable FX row can be added
The final converted amount posts to the account
The terminal quotes another currency
The merchant or ATM presents a converted total
Its offered rate determines that DCC quote
Other product terms may still need checking
02 · Name each cost
Four different things get compressed into “FX”
Marketing copy often gives you one neat percentage. The transaction can involve several differently priced events, and some costs can be embedded in a quote instead of appearing as a separate fee row.
Asset conversion
A crypto or stablecoin balance may need to become the card’s spend or settlement asset before the merchant-currency question even begins.
Rate or spread
The exchange quote can contain cost even when no separate percentage is printed as a fee. The rate and the fee are not the same field.
Product FX fee
The issuer or card programme may add a foreign-transaction or FX percentage, often with regional, currency or tier conditions.
DCC quote
A merchant or ATM can offer to convert the purchase into another currency at checkout. That is a separate quote you need to inspect.
Total conversion friction = applicable pre-card conversion + applicable checkout rate/FX + other applicable funding costs
“Applicable” is the important word. A range can depend on region. A special asset can have a different rate. DCC can be declined. Do not add every number in a fee table as if each one hits every purchase.
03 · Real cards, different traps
Examples of where the headline stops being enough
These are teaching examples from reviewed profiles, not a cheapest-card ranking. Each number and unknown state below is tied to approved facts used by the catalog.
Profile sources checked Aug 6, 2026
- Added FX feeVisa’s exchange rate still applies
- 0%
- Card-spend conversionEURe · GBPe · USDCe
- 0%
What this example shows
The reviewed Gnosis Pay facts show no added FX fee while Visa’s exchange rate still applies. A separate 0% card-spend conversion fact covers EURe, GBPe and USDCe.
A 0% product fee does not freeze Visa’s rate, and merchant or country effects can still change the effective cost. On-chain funding and transfer gas sit outside the reviewed card transaction.
Check: Who sets the rate and who adds each fee
Full breakdownProfile sources checked Aug 5, 2026
- Regional card FXExisting Mastercard fees can be additional
- 0%–3%
- Default crypto conversionReviewed Global Program schedule
- 0.9%
- Special asset ratesNot the default and not available in every region
- USDC 0.1% · selected U tokens 0%
What this example shows
The reviewed Binance Global Program schedule separates a region-dependent card FX fee from the fee for converting the funding asset. It also lists asset-specific exceptions.
The rows do not automatically apply together. Region, card programme, merchant currency and selected asset determine which charges are relevant.
Check: Region, funding asset and additional Mastercard fees
Full breakdownProfile sources checked Aug 27, 2026
- Card FX rangeReviewed product range
- 0%–1%
- Cross-border feeSeparate from currency conversion
- 0%
- Provider DCC warningPossible merchant conversion markup
- 4%–8%
What this example shows
The reviewed Plasma One fact separates a 0–1% card FX range and a 0% cross-border fee from a provider warning about a possible 4–8% Dynamic Currency Conversion markup.
The DCC range is Plasma’s documented warning, not a universal terminal charge. Compare the actual currencies and amounts offered at checkout.
Check: Local currency, card currency and the quoted total
Full breakdownProfile sources checked Aug 12, 2026
- Marketing labelNot a complete public conversion quote
- Zero FX
- Exchange pricingRates vary by currency pair and liquidity; associated fees are shown in the app
- Shown in app
- Exact public scheduleTreat the conversion spread as unknown
- Incomplete in reviewed public sources
What this example shows
The reviewed Wirex source set places zero-FX marketing beside exchange pricing shown in the app, while the exact public FX and conversion-markup schedule remains incomplete.
An unpublished rate might be cheap or expensive. Until the in-app quote appears, it is simply unknown.
Check: The rate, associated fee and final amount received
Full breakdown04 · Rebuild the receipt
Compare the applied cost with the reward you can actually use
Once the route is clear, turn percentages into money. Count only the costs that applied and subtract the accessible reward. Ignore a maximum that was unavailable on the transaction.
The companion cashback guide explains rates, caps and tier gates. The two calculations belong together whenever rewards are part of the decision.
Only count what applies
Build a receipt for the route you actually used
A fee table is a menu, not a final bill. Region, asset, merchant currency and the checkout choice decide which rows reach the transaction.
Trace the purchase
A six-question conversion check
- 1
Which balance or asset will fund this purchase?
- 2
What is the card’s spend or settlement currency?
- 3
Will the funding asset be converted before the card transaction?
- 4
Which exchange rate, spread and product FX row can apply?
- 5
Is the terminal or ATM offering Dynamic Currency Conversion?
- 6
Does the usable reward exceed the costs that actually apply to this route?
FAQ
Quick answers
Does 0% FX mean the purchase has no conversion cost?
No. A product can add no FX fee while an exchange rate, asset conversion, funding cost or DCC quote still affects the result.
Are a crypto conversion fee and an FX fee the same?
No. One can price the move from a crypto asset into a spendable balance; the other can price a card transaction across currencies.
What is Dynamic Currency Conversion?
It is a merchant or ATM offer to convert the transaction into another currency at checkout using the displayed quote.
Should I add every percentage in the fee table?
No. Identify the region, funding asset, transaction currency and checkout route, then count only the rows that apply.
What if the public conversion spread is missing?
Treat it as unknown and inspect the in-app quote or current terms. Missing data is not evidence of a zero spread.
Use this on a card profile
Compare every applicable cost in the route
Check the funding asset, card currency, regional FX row, conversion quote and source confidence, then compare the resulting cost with the usable reward.