Yes, you can use your credit card overseas, but you'll pay foreign transaction fees unless your card waives them

Most credit cards work internationally — the Visa or Mastercard network will process your purchase in another country the same way it does at home. What changes is the cost. Your card issuer charges a foreign transaction fee, usually 1% to 3% of the purchase amount, unless your card specifically waives this fee. A few cards don't charge it at all. The other cost is the exchange rate: your bank converts the foreign currency to dollars, and that rate is set by the card network (Visa, Mastercard, American Express), not by your bank.

Before you leave, contact your card issuer to let them know you'll be traveling. Many banks flag international purchases as fraud if they're unexpected, which can block your card mid-trip. You don't need permission — you're just giving them a heads-up about the dates and countries.

Key Takeaways

  • Foreign transaction fees range from 0% to 3% per purchase; cards that waive them exist but are less common among basic cards.
  • Your bank does not set the exchange rate — Visa, Mastercard, or American Express does — so shopping around for a different card won't change this cost.
  • Notify your card issuer before traveling so international purchases don't trigger fraud blocks.
  • Using an ATM abroad with a credit card usually costs more than using a debit card, because you're taking a cash advance, not a withdrawal.
  • Dynamic currency conversion (the option to be charged in dollars instead of the local currency) almost always costs more than letting your card convert at the network rate.

How foreign transaction fees work and which cards avoid them

When you swipe your card overseas, the merchant's bank converts the amount to dollars and sends it to your card issuer. Your issuer then adds a foreign transaction fee — a percentage of the purchase. This fee is separate from the exchange rate markup. A $100 purchase with a 2% foreign transaction fee costs you $102 plus whatever the exchange rate adjustment is.

Cards that waive foreign transaction fees are most common among travel rewards cards and premium cards (those with annual fees). Examples include the Chase Sapphire Preferred, the American Express Platinum, and many cards marketed specifically for travel. Basic cash-back cards and student cards often charge the full 1% to 3%. Check your card's terms document or call the issuer to confirm — the fee is always listed in the pricing section, though sometimes labeled as "international transaction fee" or "foreign purchase fee."

If your current card charges foreign transaction fees and you travel frequently, switching to a card that waives them can save hundreds of dollars per year. If you travel once every few years, the savings may not justify an annual fee on a premium card.

Exchange rates: who sets them and why you can't avoid the markup

When your card processes a purchase in euros, pounds, or yen, Visa, Mastercard, or American Express converts it to dollars. These networks set their own exchange rates daily, and they build in a small markup — usually 1% to 2% above the mid-market rate (the rate you'd see on financial news sites). You cannot avoid this markup by using a different card, because the network rate applies regardless of which bank issued your card.

Your bank does not control the exchange rate. It only controls whether it charges a foreign transaction fee on top of the network's rate. So if you're comparing cards for overseas use, focus on the foreign transaction fee, not on promises of "better exchange rates" — that's not something any card issuer can change.

Dynamic currency conversion: why saying yes costs you more

At some overseas merchants — especially in tourist areas and at ATMs — you'll be offered a choice: pay in dollars or pay in the local currency. This is called dynamic currency conversion. The merchant or ATM operator will show you the dollar amount upfront so you know exactly what you're paying in dollars.

This sounds convenient, but it almost always costs more. The merchant or ATM operator sets their own exchange rate, and it's worse than the network rate. You're paying for the convenience of seeing the dollar amount immediately. The better choice is to always select the local currency and let your card convert it at the network rate later. You won't know the exact dollar cost until the charge appears on your statement, but you'll pay less.

Using ATMs overseas and why credit cards are expensive for cash

If you need cash abroad, use a debit card at an ATM, not a credit card. When you use a credit card at an ATM, you're taking a cash advance, not a withdrawal. Cash advances come with their own fees — usually 3% to 5% of the amount — plus a higher interest rate that starts accruing immediately (no grace period like you have with purchases). A debit card withdrawal typically costs 1% to 2% and no interest.

Some banks offer debit cards with no foreign ATM fees. If you travel regularly, having a debit card with this feature is cheaper than using a credit card for cash. Check your bank's website or call to see if your debit card waives foreign ATM fees.

Notifying your bank and what happens if you don't

Call your card issuer or use their app to let them know you're traveling — include the dates and countries. This takes five minutes and prevents your card from being blocked as fraud. If you don't notify them and your card is flagged, you'll have to call the fraud department to unblock it, which is inconvenient when you're overseas and may not have reliable phone service.

Notification is not required by law, and it doesn't change your liability for fraud. It's purely a practical step to keep your card working. If your card is blocked and you can't reach the issuer, you'll need to use a backup card or find another way to pay.

Backup cards and what to pack

Bring at least two cards from different issuers. If one is lost, stolen, or blocked, you'll have another way to pay. Ideally, one should be a card that waives foreign transaction fees (if you have one) and one should be a backup. Keep them in separate places — one in your wallet, one in your hotel safe or a different bag.

Also bring a small amount of local currency (obtained before you leave, from your bank or an airport exchange desk) so you can pay for immediate needs like a taxi or food if your cards aren't working yet. This is not a substitute for cards, just a safety net for the first few hours.

Frequently Asked Questions

Will my credit card work in every country?

Visa and Mastercard are accepted in most countries, but coverage varies. American Express is less widely accepted outside major cities and tourist areas. Before traveling to a less developed country, check your card issuer's website or call to confirm the card will work there. Some countries have limited card infrastructure, and you may need cash.

What if my card is declined overseas?

Call your card issuer immediately — the number is on the back of your card. The decline could be fraud protection, a technical issue, or a problem with the merchant's terminal. If you notified your bank of travel, they should know to expect your purchases. Have your backup card ready while you troubleshoot.

Do I pay the foreign transaction fee every time I use my card overseas?

Yes, every purchase and cash advance incurs the fee if your card charges one. Even small purchases like a coffee add the fee. This is why cards that waive foreign transaction fees save money on frequent travel — you avoid the fee on every single transaction.

Can I avoid the exchange rate markup?

No. The Visa, Mastercard, or American Express network sets the exchange rate and markup, and every card using that network pays it. You cannot negotiate a better rate or use a different card to avoid it. The only way to reduce currency conversion costs is to minimize the number of conversions — for example, by using one card for all purchases instead of multiple cards.

Is travel insurance worth buying for overseas credit card use?

Travel insurance covers trip cancellation, lost luggage, and medical emergencies — not credit card fraud or lost cards. Your card issuer's fraud liability is limited by law (usually $0 if you report the loss promptly). If you're concerned about a lost or stolen card, focus on notifying your issuer quickly and having a backup card, not on insurance.