Should I exchange money before I leave or when I arrive?

Get 50-100 dollars worth of local currency before you leave or at the arrival airport for immediate expenses. For everything else, use ATMs in the city — they give better exchange rates than airport counters or your home bank. Never exchange large amounts at airport exchange booths.

How much cash should I carry daily?

Carry 20-50 dollars equivalent in local currency for small purchases, markets, and places that don't take cards. Replenish from ATMs every 3-4 days rather than carrying large amounts. Some destinations like Japan and Germany are still heavily cash-based. Others like Sweden barely use cash at all.

What if my card gets declined abroad even after I set a travel notice?

Call your bank immediately using the international collect number you saved before the trip. Sometimes fraud systems override travel notices. This is why you bring backup cards. If calling fails, many banks have online chat support that works internationally. Having a backup card from a different bank gets you through while you sort it out.

Are debit cards or credit cards better for international travel?

Use credit cards for purchases — better fraud protection, rewards points, and easier to dispute charges. Use debit cards only for ATM withdrawals. If your debit card number gets stolen, thieves can drain your checking account. If your credit card gets stolen, you dispute the charges and don't pay them.

Should I use Dynamic Currency Conversion when it's offered?

No. Always decline when a merchant or ATM asks if you want to pay in your home currency instead of local currency. Dynamic Currency Conversion gives terrible exchange rates — you'll pay 5-10% more. Always choose to pay in the local currency and let your card network handle the conversion.

How to Set Up Cards, Cash, and Currency Before You Travel

Before you travel, notify your bank and credit card companies of your trip dates, get a no-foreign-transaction-fee credit card if you don't have one, and withdraw 50-100 dollars worth of local currency at your home airport or immediately upon arrival. Carry two different cards from different networks and keep them in separate bags.

Get the right credit card. Apply for a no-foreign-transaction-fee credit card at least 3-4 weeks before your trip. Chase Sapphire Preferred, Capital One Venture, and Bank of America Travel Rewards are solid options. Foreign transaction fees are typically 3% per purchase — that's 30 dollars on every 1,000 you spend. Worth avoiding.
Notify your banks. Call or use your bank's app to set a travel notice 3-5 days before departure. Tell them the countries you'll visit and exact dates. Without this, your card gets flagged for fraud and locked when you try to use it in Prague at 11pm on a Saturday. Yes, this still happens.
Set up card redundancy. Bring at least two credit cards from different networks (one Visa, one Mastercard) and one debit card. Keep one credit card in your day bag, the other in your main luggage, and your debit card separate from both. If one gets skimmed or stops working, you have backups immediately accessible.
Understand your ATM situation. Check your bank's international ATM fees — most charge 3-5 dollars per withdrawal plus 1-3% conversion fee. Charles Schwab and some credit unions reimburse all ATM fees worldwide. If your bank charges heavily, withdraw larger amounts less frequently. Always decline the ATM's conversion offer and choose to be charged in local currency — their rates are terrible.
Get initial local currency. Exchange 50-100 dollars worth of local currency before you leave or immediately upon arrival. This covers your first taxi, water, and food before you find an ATM. Airport exchange counters have bad rates but the convenience for this small amount is worth it. For larger amounts, use ATMs in the city.
Set up mobile payments. Add your cards to Apple Pay or Google Pay before you leave. Many places abroad accept tap payments even when physical card readers are finicky. It's also more secure than handing over your physical card.
Document everything. Photograph the front and back of every card, write down your bank's international collect call number, and save your card's customer service number in your phone. Email these photos to yourself. When your wallet gets stolen in Barcelona, you'll need these numbers immediately.
Know your PIN. Memorize your 4-digit PIN for every card. Many countries require chip-and-PIN rather than chip-and-signature. If you only know your 6-digit phone-banking PIN, that won't work at European payment terminals. Call your bank to set or verify a 4-digit PIN.

Should I exchange money before I leave or when I arrive?: Get 50-100 dollars worth of local currency before you leave or at the arrival airport for immediate expenses. For everything else, use ATMs in the city — they give better exchange rates than airport counters or your home bank. Never exchange large amounts at airport exchange booths.
How much cash should I carry daily?: Carry 20-50 dollars equivalent in local currency for small purchases, markets, and places that don't take cards. Replenish from ATMs every 3-4 days rather than carrying large amounts. Some destinations like Japan and Germany are still heavily cash-based. Others like Sweden barely use cash at all.
What if my card gets declined abroad even after I set a travel notice?: Call your bank immediately using the international collect number you saved before the trip. Sometimes fraud systems override travel notices. This is why you bring backup cards. If calling fails, many banks have online chat support that works internationally. Having a backup card from a different bank gets you through while you sort it out.
Are debit cards or credit cards better for international travel?: Use credit cards for purchases — better fraud protection, rewards points, and easier to dispute charges. Use debit cards only for ATM withdrawals. If your debit card number gets stolen, thieves can drain your checking account. If your credit card gets stolen, you dispute the charges and don't pay them.
Should I use Dynamic Currency Conversion when it's offered?: No. Always decline when a merchant or ATM asks if you want to pay in your home currency instead of local currency. Dynamic Currency Conversion gives terrible exchange rates — you'll pay 5-10% more. Always choose to pay in the local currency and let your card network handle the conversion.