Just Say “No” to Offers to Pay Credit Card Charges in Dollars When Traveling Abroad

Frank McBride • July 25, 2025

Banks offer "preferential" foreign exchange rates (for themselves)

Ms. Optimizer and I do not shop a lot when we travel but, Ms. Optimizer thinks alpacas are cute and likes things made of their wool. So, we went shopping for knit products during a recent trip to Aguas Calientes, Peru. As we were about to pay, we saw the sign pictured above with an offer from Visa/MasterCard offering an opportunity to:

“Pay in your own currency and get a preferential exchange rate”

I have been seeing these “offers” for several years now and, after doing a little mental math, they are almost always a bad deal for the purchaser. When presented with a credit card reader, I always choose to pay the amount shown in local currency rather than the amount shown in US dollars.

In the case of the purchase of some alpaca blankets, I was given the choice of paying: 1) 420 Peruvian soles; or 2) a bit over $125 US dollars and chose the local currency. When I reviewed my credit card statement, the charge ended up being a little over $117. Had I taken the option of the “preferential exchange rate,” I would have paid an extra eight dollars. Even a credit card with a foreign transaction fee of 3% (which you should avoid using when traveling abroad) would have added less than four dollars to the tab.

Currency games aside, Visa and MasterCard offer reasonable exchange rates when you choose the local currency. During our trip, the exchange rate for the Peruvian sol was 3.55 soles to the US dollar. My credit card statement reflected a rate of 3.57 which is entirely reasonable. It is fair for the credit card issuers make a fraction of a percent here and there as they are performing a service and accepting currency risk (albeit briefly). But, claiming to offer a “preferential” rate to pad their bottom line is disingenuous.

Because exchange rates are reasonable, using credit cards while traveling abroad is still worthwhile for a points and miles program as long as you avoid cards with foreign transaction fees. Travel oriented cards can offer 2X and 3X spending bonuses for transportation and restaurants to give you a leg up on saving money for your next vacation.


We are ready to help you turn your routine credit card spending into the travel of your dreams.

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