Carry at least two credit cards on different networks when you travel, and keep one of them somewhere other than your wallet, such as the hotel safe. If a card is declined, lost or stolen, you can still pay, and federal rules limit what you can owe on unauthorized credit card charges.
Picture the alternative: you're at a restaurant in Paris, ready to pay, and your only card is declined. Or you reach for your wallet at the airport and it's gone. Without a backup, either moment turns a good trip into a logistics problem. Here is how to set up backups so it doesn't.
Pick Cards on Different Networks
Visa and Mastercard are the safest bets abroad. American Express and Discover are accepted in fewer places outside the United States, especially away from major cities and tourist areas, so check with the issuer about acceptance in the countries you're visiting.
If your main card is an Amex or a Discover, pack a Visa or a Mastercard as the backup. For international trips, bring at least one of each. Two cards on the same account don't count as a backup for each other, because a problem with the account affects both. That matters for couples too, so each of you should carry cards from different accounts.
Pick Cards From Different Banks
Fraud systems can flag a legitimate purchase in a foreign country, and a flagged card can stay locked until you reach the issuer. If your backup comes from a different bank, a problem at one issuer doesn't leave you with nothing. Network outages, chip reader failures and cards left behind at a merchant are the other common ways a trip goes sideways, and a second card from a second bank covers all of them.
What Protects You If a Card Is Lost or Stolen
The FTC says to report a lost or stolen credit card to the issuer as soon as possible, by phone or in the issuer's app. Under federal rules, if you report it before anyone uses it you aren't responsible for charges you didn't authorize, and if it's used before you report it, the most you might owe is $50. If someone uses your account number without the card being lost, you aren't responsible for unauthorized charges. The FTC also advises following up with a letter to the issuer giving your account number, when you noticed the card was missing and when you first reported it.
Debit cards are covered by different rules, so check your bank's terms before you rely on one as a backup. Many issuers offer protections beyond the federal minimum, which are listed in your cardholder agreement.
Where to Keep Each Card
Spread your cards around so one loss doesn't take them all.
- Wallet: your main card and one backup on a different network, plus a little local cash.
- Hotel safe or a separate bag: another backup card, your debit card and emergency cash.
- Phone: add your cards to Apple Pay or Google Pay as a third layer. Apple notes that some cards from participating banks may not be supported, so check with your bank before you leave.
How Many Cards to Bring
For domestic trips, two credit cards on different networks is the minimum. For international trips, three is a better minimum, mixing networks, with at least one Visa and one Mastercard, plus a debit card for ATMs. Adding a fourth card from a third issuer is cheap insurance on a long trip.
What to Look for in a Travel Backup
Pick cards that charge no foreign transaction fee, because where a card does charge one it is typically up to about 3% of each purchase. The Capital One VentureOne, for example, lists no annual fee and no foreign transaction fees. It also helps to have travel insurance on at least one card, so read the benefits guide for the cards you carry.
If you want lounge access too, the Capital One Venture X Rewards lists Priority Pass lounge access with enrollment, and you can read about Priority Pass before you decide. The Capital One Venture Rewards earns 2X miles on every purchase, which makes it an easy everyday card to keep in the rotation.
Before You Go
Run through this the week before you leave:
- Check each card's expiration date and credit limit.
- Save each issuer's phone number in your phone, and look up which number to use from abroad. Keep a copy somewhere other than your wallet, such as a password manager like 1Password.
- Download each issuer's app, turn on transaction alerts and find the lock-card feature.
- Check whether any issuer wants you to set a travel notice in the app.
- Decide which cards go in the wallet, the safe and the phone.
If Something Goes Wrong
If a card is declined, try it again, since terminals glitch, then use a card on a different network and message the issuer through its app. If a card is lost or stolen, call the issuer or use its app right away, lock the card if the app allows it, and ask for a replacement you can use on the trip. If every card is gone, contact your issuers about emergency replacement options and ask someone at home to help you move money.
Bottom Line
The small cost of carrying an extra card is nothing next to being stranded without a way to pay. Before your next trip, check that your cards sit on different networks and different banks, then decide which one lives in the hotel safe.
Updated October 17, 2026: liability and acceptance.
