What makes a credit card work well overseas
The best international credit card for you depends on where you go, how often, and what costs you most want to avoid. No single card wins on every measure. What matters is matching the card's strengths to your actual spending pattern — whether that's frequent trips to one region, occasional vacations anywhere, or business travel across multiple countries.
The three things that separate cards are: foreign transaction fees (the percentage charged when you swipe abroad), the exchange rate the card uses (some are better than others), and whether the card is accepted where you're going. A card with no foreign transaction fee but poor acceptance in Southeast Asia helps you less than a card with a 2% fee that works everywhere you need it.
Start by checking whether your current card charges a foreign transaction fee at all. Many basic cards charge 3% or more. If yours does, switching to a card with 0% foreign transaction fees can save hundreds of dollars per year if you travel regularly. If you rarely leave the country, the savings may not justify a new card.
Key Takeaways
- Foreign transaction fees range from 0% to 3% or higher, and this single cost often matters more than rewards or sign-up bonuses when you travel.
- Visa and Mastercard are accepted almost everywhere globally, while American Express and Discover have much narrower acceptance outside the United States.
- The exchange rate your card uses (called the "interchange rate") varies by issuer, and some cards negotiate better rates than others, though the difference is usually small.
- Cards marketed as "travel cards" often bundle no foreign transaction fees with travel insurance, purchase protection, and lounge access, but you pay for these through annual fees.
- Having a backup card from a different network (Visa plus Mastercard, for example) protects you if one network has a processing outage or is blocked in a specific country.
Foreign transaction fees: the biggest cost to compare
A foreign transaction fee is a percentage charged on top of your purchase whenever you use your card outside the United States. The fee is added by your card issuer, not by the merchant or the country you're in. Most cards charge between 1% and 3%; some charge nothing.
If you spend $5,000 per year abroad on a card with a 3% foreign transaction fee, you pay $150 in fees alone. Switch to a card with 0% foreign transaction fees and you save that $150 every year. Over five years, that's $750 — often more than the value of a sign-up bonus.
Cards with no foreign transaction fees are offered by many major issuers. You do not need to choose between no fees and other benefits; many cards bundle both. The trade-off is usually an annual fee ($95 to $550 depending on the card), which makes sense only if you travel enough to recoup it through fee savings and other perks.
Visa and Mastercard versus American Express and Discover
Visa and Mastercard are accepted at the vast majority of merchants worldwide. If you are traveling to Europe, Asia, Latin America, or Africa, a Visa or Mastercard will work in most places you need to pay. American Express and Discover are accepted in far fewer locations outside the United States, especially in smaller cities, rural areas, and developing countries.
This matters more than the card's other features. A card with excellent rewards and no foreign transaction fees is useless if merchants where you're going do not accept it. Before choosing a card, check whether Visa or Mastercard is the network. If the card is American Express or Discover, confirm that it will work in the specific countries you plan to visit.
The safest approach is to carry two cards from different networks — for example, a Visa and a Mastercard. If one network has a processing outage (rare but it happens) or if a specific merchant or country blocks one network, you have a backup. This also spreads your risk if one card is lost or stolen.
Annual fees and whether they pay for themselves
Many cards marketed for travel charge an annual fee ranging from $95 to $550. These cards often bundle no foreign transaction fees with travel insurance, airport lounge access, statement credits for travel purchases, and other perks. The question is whether those perks are worth the fee you pay.
If you travel internationally four or more times per year, a card with a $95 annual fee and no foreign transaction fees will almost certainly pay for itself through fee savings alone. If you travel once or twice per year, the math is tighter. A $550 annual fee makes sense only if you use the lounge access, travel insurance, and other benefits regularly.
Read the fine print on travel insurance and lounge access. Some cards limit lounge visits to a certain number per year, or require you to be traveling on a ticket purchased with that card. Some travel insurance covers only specific scenarios (lost luggage, flight delays over a certain length) and excludes others (pre-existing medical conditions, travel to certain countries). A high annual fee is only worth it if you will actually use what you're paying for.
Exchange rates and how much they vary
When you use your card abroad, the merchant's local currency is converted to US dollars. Your card issuer does not set this rate — it is set by the card network (Visa, Mastercard, American Express, or Discover) and is based on the real-time market rate at the moment of the transaction. The difference between what you pay and the true market rate is called the "markup."
Most card issuers use the network's standard rate, which includes a small markup of roughly 0.5% to 1%. Some premium cards negotiate a better rate with the network and pass the savings to you. The difference is usually small — often less than 0.5% — and matters less than a foreign transaction fee, which can be 2% or 3% or higher.
Do not choose a card based on exchange rate alone. The foreign transaction fee is a much larger cost. A card with a 0% foreign transaction fee and a standard exchange rate will almost always cost you less than a card with a 1% foreign transaction fee and a slightly better exchange rate.
Travel insurance and purchase protection
Many cards marketed for international travel include travel insurance that covers lost luggage, flight delays, trip cancellation, and emergency medical expenses abroad. They also include purchase protection that covers items you buy with the card if they are damaged, lost, or stolen within a certain period.
These benefits are real and can save you money, but they come with limits. Trip cancellation insurance usually covers only cancellations due to specific events (illness, death of a family member, airline bankruptcy) and excludes others (travel warnings, pandemics, pre-existing conditions). Emergency medical coverage often has a cap — for example, $100,000 — and may not cover treatment in your home country if you become ill while traveling.
Before relying on a card's travel insurance, read the full terms. Compare it to travel insurance you can buy separately, which is often cheaper and more comprehensive. If you travel frequently or to high-risk areas, standalone travel insurance may be a better choice than relying on a card benefit.
How to choose based on where you travel
The best card for you depends on your specific travel pattern. If you travel frequently to Europe and Asia, you want a Visa or Mastercard with no foreign transaction fees and good acceptance in those regions. If you take one vacation per year to Mexico or the Caribbean, you may not need a premium card at all — a basic card with no foreign transaction fee might be enough.
Start by listing the countries you plan to visit in the next year. Check whether Visa and Mastercard are accepted in those places (they almost always are, but it is worth confirming for remote areas). Then compare cards that are Visa or Mastercard, have no foreign transaction fees, and fit your travel frequency. If you travel four or more times per year, consider whether the annual fee of a premium card is worth the other benefits.
If you already have a card with no foreign transaction fees, you may not need to switch. The cost of switching is the time to explore and the small hit to your credit score from a new process. Unless you travel very frequently or the new card offers significant benefits you will actually use, staying with what you have may be the smarter choice.
Frequently Asked Questions
Do I need a special card to use ATMs abroad?
Most ATMs abroad accept Visa and Mastercard debit cards the same way they accept domestic cards. Your bank may charge a foreign ATM fee (usually $2 to $5 per withdrawal) in addition to the ATM operator's fee. Some banks waive foreign ATM fees if you use their partner network. Check your bank's website before you travel to see what fees explore.
What happens if my card is declined while I'm traveling?
A card can be declined for several reasons: the merchant's terminal does not accept that network, the card network is having an outage, or your bank has flagged the transaction as suspicious. This is why carrying two cards from different networks is important. If one is declined, you have a backup. You can also call your bank before traveling to let them know your trip dates, which reduces the chance they will block legitimate transactions.
Should I exchange money before I travel or use my card?
Using your card is almost always cheaper than exchanging cash before you travel. Currency exchange booths at airports charge high markups — often 5% to 10% — and you lose money on both the buy and sell sides if you exchange back to dollars. Your card's exchange rate (with or without a foreign transaction fee) is almost always better. The exception is if you are traveling to a country where card acceptance is very low and you need cash for most purchases.
Can I use my credit card in countries with currency controls?
Some countries limit how much foreign currency you can bring in or take out, or restrict card transactions to certain types of purchases. These are government rules, not card rules, and they vary widely by country. Before traveling to a country with known currency controls (Venezuela, Argentina, China, and others), contact your bank and check the US State Department website for current restrictions.
What if I'm traveling for work — does my employer's card matter?
If your employer provides a corporate card for travel, use it for business expenses. Corporate cards often have different foreign transaction fees and benefits than personal cards, and your employer may have negotiated better rates. For personal expenses, use your own card. Keep receipts separate so you can expense business purchases and keep personal ones off your employer's card.