Transport for London (TFL) is planning to introduce contactless payment cards across all its London transport services this September.
From September 16, passengers will be able to use cards, phones, payment tags or wearables to pay for the Tube, London Overground, DLR and certain National Rail services.
TFL hopes introducing the technology will mean customers no longer will have to check and top up their Oyster balance, although these will still be in use.
TFL also advised transport users to avoid paying twice by making sure only one card touches the reader.
Shashi Verma, TfL’s Director of Customer Experience, said: "Offering the option of contactless payments will make it easier and more convenient for customers to pay for their travel, freeing them of the need to top up Oyster credit and helping them get on board without delay."
The contactless system, first introduced on London’s bus network in December 2012, will allow users to view their journey and payment history via their TFL online account.
The system is also expected to generate the best deal for customers, with daily travel caps and a "Monday to Sunday" option that calculates the best value fare over the course of a week.
The announcement follows a successful trial of some 3,000 customers in April, which helped improve the service, such as making online accounts easier to use, according to TFL.
It also comes after figures from Juniper Research found that about 250 million credit and debit cards are expected to be used for contactless payments in 2014.