Using a debit card internationally is generally discouraged due to high foreign transaction fees (typically 1–3% per purchase), steep ATM withdrawal fees, and inferior security protections compared to credit cards. If lost or stolen, fraudulent transactions directly drain your checking account, causing immediate liquidity issues, unlike credit cards which use the bank's money during disputes.
Notify Your Bank Before You Go
One of the most important travel banking tips is to let your bank know when and where you'll be traveling. Using your debit card in a new location—especially out of state or internationally—can trigger fraud alerts and lead to your card being blocked.
The 2/3/4 rule is a guideline, primarily used by Bank of America, that limits how many new credit cards you can get: no more than 2 in 30 days, 3 in 12 months, and 4 in 24 months, helping to prevent over-application and manage hard inquiries on your credit report. While not universal, it's a useful benchmark for responsible card application, though other banks have different rules (like Chase's 5/24 rule).
Credit Card Pros: Built-In Travel Perks
Whether you're booking a flight, reserving a hotel, or handling unexpected expenses, credit cards give you more breathing room and extra protections that debit cards often don't. Just be sure to use them wisely to avoid debt and interest charges.
Cons of debit cards
Using foreign exchange services before you fly
Exchanging cash in advance before your trip is often one of the best ways to spend money abroad. It will avoid you having to pay poor exchange rates at certain airports, especially if you don't know what their rates will be before you leave for your trip.
Credit cards are likely to remain more widely accepted than debit cards, especially cross-border. However, withdrawing money from ATMs abroad and the currency exchange associated with international transfers are often much cheaper with a debit card than with a credit card.
You can avoid all transaction fees by paying for your purchases in cash while you're abroad. Banks and currency exchange stores will exchange U.S. dollars for most major currencies, and you can do this before you leave.
What Is the 15/3 Rule?
Gas stations, bars, restaurants and online shopping are the riskiest places to use debit cards due to skimming vulnerability. Contactless payments and credit cards offer better security than traditional debit cards. Monitor your checking account daily and report suspicious activity immediately to minimize fraud losses.
Guidelines/Tips for Traveling with Cash
Avoid multiple currency conversion fees: If you use a credit or debit card while travelling, your bank may charge you currency conversion fees for each transaction. With a travel card, your funds will already be in the currency of the country in which you are travelling, so this may be avoided.
It's not essential, but it helps our fraud detection systems to know in advance that you're travelling abroad. Find out how to get it at How do I get the mobile banking app?
Almost all European destinations accept U.S. credit or debit cards. In most locations, the availability of ATMs makes withdrawing local currency an easy option for everyday purchases like meals, beverages and small souvenirs. Remember that ATM exchange rates vary daily.
Having a credit card with no annual fee is especially beneficial for those on a tight budget who want to maximize the rewards earned from their credit card. Many of these cards offer competitive rewards programs and perks, so you can still enjoy the benefits of using a credit card without worrying about an extra cost.
Do not use the GTCC: (1) to exceed the allowable daily meals and incidental expenses (M&IE) rate; (2) to make non-travel related purchases; (3) for personal expenses associated with "leave in conjunction with official travel;" (4) to take cash advances from the ATM more than three working days before scheduled ...