What is a foreign transaction fee on a credit card?

A foreign transaction fee is a surcharge — typically 1% to 3% of the purchase, most often 3% — added when you use a card for a transaction processed outside the U.S. or in a foreign currency. Many travel-oriented cards waive it entirely.

The fee triggers in two situations: using the card physically abroad, or buying online from a merchant whose payment processor is based overseas — even if you never leave home. It's separate from the currency conversion rate: the network sets the exchange rate (usually near the mid-market rate), and the foreign transaction fee is an additional markup layered on top. Both must be disclosed in the card's rate-and-fee table, so check the transaction-fees row before applying. On $5,000 of international spending, a 3% fee is $150 — which is why a card that waives it is worth seeking out for regular travelers.

Reviewed by the ClearValue Editorial Team · Last updated 7/8/2026