Currency Cards and Spending Abroad

Prepaid currency cards

Loaded with foreign currency in advance at a rate fixed at the time of loading.

The advantage is certainty: you know the rate and cannot overspend beyond the balance.

The disadvantages are load fees, ATM withdrawal fees, inactivity fees on unused balances, and charges to convert unused currency back.

They also mean committing to a rate, which is a gain if the rate moves against you and a loss if it moves in your favour.

Fee-free debit and credit cards

Accounts and cards charging no foreign transaction fee and converting at or near the wholesale rate are widely available.

Generally the cheapest option overall, with no need to predict rates or manage balances.

Check whether the favourable rate applies at weekends, since some providers apply a markup when markets are closed, and check ATM withdrawal limits.

Credit cards used for purchases abroad may also carry purchase protection, which debit cards frequently do not.

The rule that matters most

Always choose to be charged in the local currency when a terminal or ATM offers a choice.

Dynamic currency conversion — being charged in your home currency at the merchant's rate — is consistently worse, sometimes substantially.

This single decision usually saves more than the choice between card types.

Cash

Still necessary in many destinations for taxis, markets, tips and small businesses.

Withdraw from bank ATMs at the destination rather than exchanging at airports, which offer the worst rates available.

Take a modest amount and top up as needed rather than carrying large sums.

Practical arrangements

Carry cards from two different networks stored separately, since acceptance varies and losing a wallet should not leave you without access.

Note the international number for reporting lost cards, stored separately from the cards.

Check whether your provider requires travel notification, which many no longer do but some still expect.

Check daily withdrawal and spending limits before travelling, since discovering them at a hotel checkout is inconvenient.