What you need to do depends on whether you're travelling on buses and trams, or rail services.
Touch your contactless card on a yellow card reader at the start of a journey and wait for the green light:
Don't touch it again when you get off.
If a red light shows your card has not been accepted for travel and you will need to find another way to pay for your journey. This could be:
On Tube, DLR, London Overground, TfL Rail and National Rail services, touch in on the yellow card reader at the start and out again at the end of your journey.
If you're travelling to or from a station that doesn't have any gates, or the gates are already open, you must still touch in and out.
If your card or mobile phone is approved for travel, you'll see a green light. If there are gates, they'll open. If it is not approved for travel, a 'seek assistance' message will be displayed and the gates won't open. You will need to use another way to pay, which could be:
You must use the same contactless card, mobile phone or device to touch in at the start of your journey and out at the end: if you don't you could be charged maximum fares for two incomplete journeys.
You might be charged a maximum fare of £7.80 in in Zones 1-9 (or up to £14.20 for travel to/from stations outside the London fare zones). You could also be issued with a penalty fare, or be prosecuted.
When stations are very busy we may leave the gates open to control crowds and ensure that people can leave the station quickly and safely. If so, you might not be able to touch out but we'll aim to fix this for you when you touch in to start your next journey.
You might see a pink card reader at a station. They don't record the start or end of your journey; instead they tell us which route you've taken so we can charge you the right fare. Some routes, like those which don't include travel via Zone 1, are cheaper than others.
If you have to change trains (without changing stations) during a journey, you should:
If you need to change stations during your journey
In some cases this may mean changing from one train operator to another within the same station. For example, when changing from the Tube to National Rail at Marylebone, touch out on a gate as you exit the Tube and touch in on a yellow card reader when you enter the National Rail platforms.
If you touch in and out at the same station with the same card or mobile phone without making a journey, the following charges apply:
You may be eligible for a refund if you have been charged for a same station exit.
Make sure you use the same contactless card, mobile phone or other device to touch in at the start and out at the end of your journey. If you use different ones you will be charged for two journeys.
At River Bus piers, touch your contactless card, mobile phone or other device on the yellow card reader at the start, and out again at the end of your journey.
Only touch in when asked to board by a member of MBNA Thames Clippers staff and remember to touch out at the end of your journey, or when changing boats. A member of MBNA Thames Clippers staff must see you touch in.
If your card is approved for travel, you'll see a green light. If your card is not approved for travel a 'seek assistance' message will be displayed and you will need to use another way to pay. This could be:
You must use the same contactless card, mobile phone or other device to touch in at the start of your journey and out at the end. If you don't, you could be charged maximum fares of up to £7.20 each for two incomplete journeys.