UK: TfL’s operating and capital account details for 2016-17 May 1, 2016 | Data & Statistics TfL’s five main sources of income include fares, government grants, borrowing, cash reserves, and Crossrail funding. The largest source of cash for 2016-17 will be fare revenue (46 per cen... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password