Transport for London (TfL) concluded that the minicab app is “not fit and proper” to operate in the capital due to concerns which have “public safety and security implications”.
These include its approach to reporting serious criminal offences and how it carries out background checks on its drivers.
Uber was given just a four-month temporary licence in May – and the taxi firm’s current deal expires on September 30, Transport for London (TfL) said.
TfL says its regulation of London’s taxi and private hire trades is designed to ensure passenger safety – and Uber is not adhering to the rules.
A statement from TFL said: “Private hire operators must meet rigorous regulations and demonstrate to TfL that they do so, in order to operate.
“TfL must also be satisfied that an operator is fit and proper to hold a licence.
“TfL has concluded that Uber London Limited is not fit and proper to hold a private hire operator licence.”