On London transport, the bank account behind a payment is not the same thing as the card or device you tap. TfL explicitly says not to enter with an iPhone and leave with an Apple Watch or physical contactless card. Choose one payment method for the journey and use that same card or device at both ends. The gates are not interested in your explanation that everything belongs to you.
This is a pay-as-you-go tapping and recovery guide, based on TfL's pages checked on 29 October 2026. It is not a route planner, a fare quote or a promise that every overseas card works. Check the actual transport service and payment method before boarding.
Before the first trip: assign a payment method
Choose the physical contactless card, the particular phone, the particular watch, or an Oyster card that you intend to use. Do not alternate between them halfway through a journey. TfL's rule is the same card or device, even if the devices use the same underlying bank card.
For a family, decide who will use what before everyone reaches the gate. TfL says you can pay for another person's travel while travelling with them only by using a different card or device. Two people cannot share one Oyster card for the same journey. A group should not keep passing one card back through the barrier.
Many contactless cards issued outside the UK work, but TfL warns that overseas charges may apply and some mobile payments associated with non-UK cards may not work. Check with the issuer and keep a supported ticket or Oyster fallback. Enabling international use does not guarantee acceptance or remove issuer fees.
At the entrance: present only the intended card
TfL asks travellers to keep contactless and Oyster cards separate at yellow readers to avoid card clash. Our practical suggestion is to take the chosen card out rather than tap a wallet containing several cards. With a phone or watch, keep other cards away and use the same device you plan to have available at the exit.
Make sure the device has enough battery for the journey. TfL warns that a device that cannot be used can lead to a maximum fare or a penalty fare. A spare physical card is useful as a fallback for a later journey; it is not automatically a substitute touch-out for the phone used at entry.
For rail: touch in and touch out
TfL's guidance requires a yellow-reader touch at both ends on Tube, DLR, London Overground, Elizabeth line and National Rail journeys within the applicable pay-as-you-go service. It also lists River Bus and London Cable Car journeys; check their actual boarding procedure. Always use the same card or device.
Touch out even when the station gates are open. Where there are no gates, use the freestanding yellow reader near the entrance, exit or platform. An open gate is not a free-fare announcement. If a reader does not work or the route is unclear, ask staff rather than tapping every card in your bag.
Pink readers have a different job. TfL says to touch one when changing trains on relevant routes avoiding Zone 1, to obtain the correct fare. Use TfL's single fare finder to check the actual journey. A pink interchange tap does not replace the yellow start and end taps.
For buses and trams: do not copy the rail routine blindly
The normal TfL instruction for a bus or tram is to touch in at the start only, not touch out at the end. Touching out can mean paying more than needed. That is a mode-specific instruction, not a reason to omit a rail exit tap.
Some tram interchanges need extra care. TfL gives special steps at Wimbledon, Elmers End and Mitcham Junction. At Wimbledon, for example, a train or Tube arrival followed by a tram requires a rail touch-out and a separate tram-platform touch-in. Follow the specific instructions for the actual interchange rather than turning “trams only touch in” into a universal station-gate rule.
If the record is incomplete, the cap does not fix it
Without the required entry and exit record, TfL may be unable to work out the correct fare and charges a maximum fare. Its guidance says maximum fares do not count towards capping. Do not assume the day's cap will automatically make a wrong-device journey harmless.
Returning through the same station gate without travelling can also incur a charge. So can exceeding the route's maximum journey time. This guide does not reproduce the fare tables or give one permitted time for every journey. Ask staff if disruption or a wrong entrance changes your plan; do not keep tapping experimentally to see what happens.
Recover the journey record through TfL
Keep the date, approximate time, entry and exit stations and the cards or devices used. Check journey history through TfL's official route, not a link in an unsolicited refund message. Its incomplete-journey page says contactless journeys from the past seven days can also be checked through its unregistered-card service. Do not post full card details or account credentials in a travel group.
TfL says to wait at least 48 hours before applying because most refunds are processed automatically. If no automatic refund arrives, its page gives up to eight weeks from the journey to claim. This is not a guarantee that every error will be refunded. It says a claim may take up to ten working days to review.
For contactless, register the card in an online account, open Journey and payment history and choose Apply for incomplete journey refund. Adult Oyster has its own account route; Visitor Oyster and photocards have different contact routes on the same page. Use the branch for the product you actually used rather than assuming every Oyster card has identical online handling.
A ten-second check before the next gate
Our suggested reminder: which person, which card or device, which transport mode, and does this stage need a start tap, an end tap or a specific interchange action? Keep the chosen method accessible until the journey is complete. One consistent payment identity is easier than reconstructing two incomplete journeys later.
A Miranda House graduate and lawyer who traded courtrooms for slow travel. Cheshta travels with the batches we host ourselves, with a soft spot for travelling alongside elders.
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