Dynamic Currency Conversion
What Is Dynamic Currency Conversion?
DCC is a service offered at point of sale terminals that allows international travelers to pay in their home currency instead of the local currency. It is usually provided by third party operators, with the card only permitting them to offer it with the card issuer's rules.
While this may seem like a straightforward solution, it is usually the much more expensive option.
When you swipe your card abroad, the terminal identifies your card's origin and offers to show the price in a familiar currency. While this provides immediate clarity on the cost, it often includes a significant markup.
Many travelers assume paying in their home currency is safer or more transparent, but DCC typically applies a conversion rate that includes an additional margin on top of the interbank exchange rate.
For example, when converting USD to local currencies like Nigerian naira, different platforms apply exchange rates and fees that can significantly affect how much value you ultimately receive, so being aware of the true cost of every conversion matters. In places like the UAE, choosing to pay in the local currency (such as AED) instead of USD at the terminal tends to be cheaper than accepting a marked-up DCC rate set by the merchant’s provider.
Because the exchange rate is set by the merchant’s payment processor rather than your card issuer, you usually have less favorable pricing and less visibility into the true cost of the transaction.
When a terminal in Mexico or the UAE asks if you want to pay in USD or the local currency, choosing USD activates DCC. In this case, the merchant’s provider handles the conversion.
This service is profitable for the bank and the merchant, meaning the exchange rate is usually much worse than the standard market rate. By opting for the local currency, you allow your card issuer to perform the conversion at a more competitive price.
KAST: Smarter Global Spending
KAST is designed for transparent and efficient global payments. When using your KAST Card internationally, you should always select the local currency at the terminal.
This simple choice ensures KAST processes the transaction using live market rates, protecting your balance from the hidden costs of DCC and keeping your crypto spending as cheap as possible.
Because KAST supports transparent stablecoin funding and real-time conversion through supported networks, users can compare exchange outcomes more clearly than with traditional card rails.
Whether you are converting USD to naira, AED, or another local currency, selecting the local option at the terminal keeps pricing aligned with market rates rather than merchant markups.
