The most expensive thing in most UK adults' luggage is the high-street debit card they're about to spend on holiday with. A typical NatWest, HSBC, Barclays, or Lloyds debit card adds 2.99% on every foreign transaction plus a 2-3% margin on the exchange rate. On a £2,000 holiday spending abroad, that's £40-£100 lost to conversion mark-up — quietly, on every transaction, without any line item on the statement that flags it.
The cards that don't charge this mark-up are well-known but under-used by mainstream UK adults: Chase UK, Starling, Wise, Revolut. Switching to one of these as your travel debit card saves £40-£200 per international trip depending on spend. The switch takes 15 minutes; the saving compounds across every trip you take from now on.
What "no foreign transaction fee" actually means
Three layers of cost when using a debit card abroad:
- The exchange rate applied — most banks use the Mastercard / Visa wholesale rate plus a margin (2-3%)
- A foreign transaction fee — often 2.99% added to each transaction
- ATM withdrawal fee — often £1.50-£2.50 plus a percentage of the withdrawal
A "no foreign transaction fee" card eliminates layer 2. The best cards (Chase, Starling, Wise) ALSO use the wholesale rate without margin, eliminating layer 1.
Cards that genuinely have all three layers at zero: Chase UK, Starling, Wise (debit). Cards with most but with caveats: Revolut (free, weekday only), Monzo (limits).
The four worth knowing
Chase UK debit card. Launched in 2021 and remains the best free travel debit card in 2026. No foreign transaction fees, mid-market exchange rate, no ATM fee on withdrawals up to £1,500/month abroad. Plus 1% cashback on card spending — even on foreign purchases. Excellent app, current account alongside. ATM withdrawals capped at £1,500/month abroad before fees apply; doesn't accept cash deposits in the UK; newer than high-street banks. Best for most UK adults wanting one debit card that works free abroad.
Wise debit card. Excellent for travellers who want to hold balances in foreign currencies before spending. Fund in GBP, convert to EUR/USD/etc. at mid-market rate, then spend without further conversion charges. Hold 50-plus currencies. Wise is an e-money institution, not a bank — funds held in client account at clearing partner. Doesn't replace your main current account. Best for frequent travellers and freelancers paid in multiple currencies.
Starling Bank debit card. Free abroad since 2018. Solid current account with native foreign-spend zero-fee. Best for UK adults who want a current account that doubles as travel-friendly.
Revolut. Free tier: foreign spending free up to monthly limits, then 0.5% above. Weekend FX has a 1% margin (this catches people out). Premium at £8/month removes weekend FX margin and raises limits. For frequent travellers: Revolut Premium can pay back. For occasional travellers: Chase or Starling are simpler and cheaper.
How I'd actually pick
Travels 1-3 times a year: Chase debit card as primary travel card. £0 cost, 1% back on spending.
Travels frequently or holds foreign currency: Wise debit card plus Chase as backup.
Wants main current account to handle travel: Starling Bank.
Already pays for Revolut Premium for other reasons: continue with Revolut but verify the FX terms.
What I'd swerve: paying any of the high-street banks' "travel cards" at premium fees. NatWest's old "Reward Travel" wasn't competitive; HSBC, Barclays, Lloyds equivalents are the same. The fintech alternatives are universally better in 2026.
Credit cards abroad — when they earn their place
Credit cards add complexity. The best travel credit cards (American Express Preferred Rewards Gold, Barclaycard Avios Plus) earn more on foreign spend than debit cards offer. But credit cards aren't universally accepted — especially Amex outside major chains — and use carries more complexity around charges if you don't pay in full.
For most UK adults: Chase debit + main credit card for backup is the simplest setup.
For Amex holders who travel for work: Amex Gold's no-foreign-fee plus higher Membership Rewards earn often beats debit-card-only setups, but only if you pay in full each month.
The pitfalls that cost the most
When using your card abroad:
- Choose to be charged in local currency, not GBP. When the terminal asks "GBP or local?", always choose local. The "in GBP" option uses the merchant's exchange rate (often 4-7% worse than your card's rate).
- Avoid airport currency exchange. Rates are 5-15% worse than your card.
- Withdraw more in fewer transactions rather than less in many. Per-transaction fees add up faster than people realise.
- Notify your card provider if your card requires it — though most modern fintech cards handle travel without you needing to call.
The biggest wins come from #1 and #2. A £20 dinner charged "in GBP" by a Roman waiter quietly costs £21.40. The same dinner in EUR runs through your Chase card at the wholesale rate and costs £20.05.
This article is general consumer information. Verify current terms with each provider before travel.
Affiliate disclosure: Morningfold has affiliate partnerships with Chase, Starling, Wise, Revolut. See editorial standards.