Can you use a UK banking app abroad? A travel checklist

You can often use a UK banking app abroad on your usual phone. Barclays, for example, says its online banking services work in most countries and advises checking local rules where necessary. Check your own bank’s advice for your destination. In many cases the deciding factor is whether you can approve the sign-in on your registered device. Buying a UK VPN connection does not solve a missing verification code.

Do a ten-minute check before departure

1. Open the app on the phone you will carry. Complete any update or device registration at home. Sign in, find the card controls and check where you can reach the bank securely from the app. A new phone first opened at the airport may still need authorisation from the old one.
2. Find out how you approve a payment. The bank may ask for approval inside its app, a text to your registered number, a security device or another specific method. Review the number the bank holds. If you normally use a card reader for a particular action, check whether you need to take it.
3. Check what your SIM can receive overseas. A travel eSIM can provide data for the banking app, but a text sent to your UK number goes to the UK line. Ask your mobile provider about availability and charges at your destination. See the travel eSIM checklist.
4. Save the bank’s overseas contact details somewhere else. Look for the international fraud and lost-card numbers on the bank’s own site. A contact saved only on the phone you lose is hard to retrieve. Keep a separate copy without writing your card PIN, passwords or security answers beside it.

Choose a connection for a banking session

Use the genuine banking app on your own updated phone. If mobile data is available at a known cost, it avoids the hotel network and its welcome portal. If you need the hotel Wi-Fi, confirm the network name with staff and finish its sign-in before opening the bank. A hotel portal should have no need for your banking credentials or a certificate to access your bank.

A personal VPN can reduce what the Wi-Fi operator can see about traffic routed through it. The banking app already uses its own encrypted connection. The bank can see the address from which it receives the request and still apply device, identity and transaction checks. A shared VPN exit can itself lead to an additional challenge. Moving between several countries in the VPN app during one payment is a poor way to diagnose that problem.

Work out which stage failed

If the VPN appears to be the only variable, close the session, move to your own mobile connection and try again once without the VPN, where permitted. If the bank reports a security hold, stop trying new servers and give its support team the error and time. If a payment screen times out, check the transaction list or ask the bank before submitting the payment again.

If your phone goes missing

Contact your bank and mobile operator promptly using independently sourced details. Ask about removing the lost device from mobile banking and protecting the SIM. A temporary freeze on one card may help with card use but leaves other forms of account access to address. If somebody contacts you about a “safe account” or asks for a one-time code, end the conversation and make a fresh call using the published number.

Bank and security guidance

• Barclays on using online banking abroad
• Lloyds Bank’s contacts, including numbers for callers overseas
• National Cyber Security Centre on spotting scam messages and calls