EE has announced a new feature addition in its NFC-based payment service through which customers can now pay for travel on London's bus network. In addition to paying for bus fare, EE subscribers will be able to leverage the service to pay for fare on the London Underground, DLR and Overground starting September 16.

Launched last year, EE's Cash on Tap is a Mastercard-backed contactless mobile payment service that allows you to use your phone to pay for purchases up to £20 at over 300,000 outlets across the UK.

EE notes that there will be no added charges for using the Cash on Tap service to pay for bus fare, and that customers can enforce daily and weekly caps — at £4.40 and £20.20 respectively — to ensure they don't pay more than what they do with an Oyster card.

The service is currently supported on eleven 4G-enabled EE handsets, which include the likes of the Samsung Galaxy S5, HTC One M8 and Sony Xperia Z2. EE has mentioned that it is adding support for more devices in the coming months.

EE subscribers, would you be interested in using the mobile payment service in lieu of an Oyster card? What other features would you like to see added to the service? Share your thoughts in the comments.