Do I need to print my travel documents or is digital enough?

What has to be physical

Only a short list genuinely has to exist on paper or in its original form. Everything on this list should be in your bag, not on your screen.

• Your passport or, for some routes, your national ID card.
• A yellow fever certificate, which officers expect as the physical yellow booklet.
• A visa sticker in your passport, where a country still issues one instead of an electronic record.
• An International Driving Permit, which is a paper booklet by design.

Everything else lives as a record in a system and is linked to your passport number, which is why a screenshot is usually just a convenience rather than the document itself.

There is one grey area worth knowing about. Several countries are moving driving licences and national ID cards into phone wallets, but those digital versions are recognised only inside the country that issued them and are no use at an international border.

What works fine on a phone

trip1 emails your booking confirmation as soon as the booking is confirmed, and hotels are happy to see it on your phone screen at the front desk. Most hotels look you up by name and passport anyway, so the confirmation is really there to reassure you.

• Mobile boarding passes in your airline's app or phone wallet.
• Hotel booking confirmations.
• E-visas and travel authorisations such as ESTA, an eTA or a UK ETA, all of which are checked against your passport electronically.
• Travel insurance policy documents and emergency assistance numbers.
• Car hire vouchers, tour bookings and train tickets.

Each of these is looked up against your passport number or your booking reference, so what you show on screen is a prompt rather than the document itself. A saved photo of the confirmation works just as well as the live email when you have no signal.

Why a printed backup is still worth having

The argument for paper is not that officials demand it. It is that phones fail at exactly the wrong moment, and the wrong moment is usually a border queue after a long flight.

• Your battery dies in the air and there is no free socket before immigration.
• Airport wifi is unusable and the email with your confirmation was never cached offline.
• Your phone is lost or stolen in transit, which is also when you most need your insurance number.
• The screen is cracked, or unreadable in bright sun at an outdoor land border.

Some officers, particularly at land crossings and smaller airports, still prefer a piece of paper they can hold and hand back. Producing one is faster than explaining that digital should be fine.

A sensible middle ground

You do not need to print everything. One page usually covers it.

1. Print the essentials of your itinerary: outbound flight, return flight, and the hotel name, address and dates.
2. Add your insurance policy number and the insurer's emergency phone number.
3. Save the same information as a PDF in your phone's offline storage, not only in your email inbox.
4. Photograph your passport data page and store the image somewhere you can reach without that phone, such as an email to yourself.

Keep the printed page somewhere other than with your passport, so losing one does not mean losing both. A different pocket or a different bag is enough.