Foreign Transaction Fee
A foreign transaction fee is a surcharge — typically 3% — that many US credit cards add to every purchase processed outside the United States or in a foreign currency. On a $3,000 trip abroad that's $90 in pure fees, which is why travel cards like the Sapphire Preferred charge none.
Foreign transaction fees (FTF) are a legacy surcharge that quietly erases rewards: earn 2% back, pay 3% in fees, and every foreign purchase is a net loss.
How it works. The fee applies to any transaction routed through a non-US merchant or processed in another currency — including online orders from foreign websites while you sit at home. It's charged as a separate line item on top of the converted amount. Virtually every serious travel card waives it: the Sapphire Preferred ($95), Venture X ($395), Bilt cards, and all Capital One and Discover cards charge 0%. Cards that still commonly charge ~3% include many cash-back and store cards.
Example. Two weeks in Europe with $3,500 on the card: a 3% FTF costs $105. The same spend on a no-FTF card costs nothing extra and still earns points.
Related trap — DCC. When a foreign terminal offers to charge you in dollars ("dynamic currency conversion"), decline and pay in local currency: DCC exchange rates are typically 5-10% worse, a separate and larger loss than the FTF itself.
Common mistakes: taking a no-FTF card abroad but paying with a debit card that charges fees, and assuming "no annual fee" implies "no foreign fees" — the two are unrelated. Card picks in best no-FTF cards for newcomers.