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Plain-language glossary

Currency exchange terms explained

Use this glossary when a bank, card issuer or transfer provider uses terminology that makes a quote harder to compare.

Reference rate
A neutral rate used as a comparison baseline. It is informational and may not be an executable bank, card or transfer quote.
Exchange rate
The amount of one currency that can be expressed in units of another currency, such as 1 EUR = 1.10 USD.
Base currency
The first currency in a pair. In EUR/USD, EUR is the base currency.
Quote currency
The second currency in a pair. In EUR/USD, USD is the quote currency.
Spread
The gap between two rates, often between a neutral reference level and the rate offered by a provider.
Markup
An amount or percentage added by a provider. In currency conversion it can be embedded inside the exchange rate.
Mid-market rate
A commonly used label for the midpoint between market buy and sell prices. Retail providers do not necessarily transact at that midpoint.
Fixed fee
A set charge that does not change with the amount converted, such as a €3 transfer fee.
Percentage fee
A fee calculated as a percentage of the amount, such as 0.5% of the transfer value.
Foreign transaction fee
A card-issuer fee that can apply when a purchase is processed in a foreign currency or country, depending on the card agreement.
Dynamic currency conversion (DCC)
A service where a merchant or ATM offers to convert a purchase into the cardholder’s home currency before the card issuer processes it.
Settlement
The stage at which a transaction is finalized between the institutions involved. The settlement date can differ from the purchase or authorization date.
Authorization
The initial approval step for a card transaction. The final posted amount can still differ if currency conversion occurs later.
Remittance
A transfer of money, often across borders, to another person or household.
Payout method
How the recipient receives money, for example a bank deposit, mobile wallet or cash pickup.
Liquidity
How easily a currency can be bought or sold without causing a large price change. Lower liquidity can contribute to wider spreads.
Historical rate
A previously observed reference rate. Historical values provide context but do not predict future rates.
Rate lock
A provider promise to hold a quoted rate for a stated period or under stated conditions.
Effective rate
The real conversion result after accounting for the provider rate and relevant fees.
Intermediary bank fee
A charge that can be deducted by a bank involved in routing an international payment between sender and recipient.