A further £0.6 billion of BRS revenues will finance construction works directly, and the GLA has already contributed more that £3.0 billion by the end of 2013 through the BRS mechanism. The Crossrail BRS is expected to run for more than 25 years until the borrowing is repaid, and in the current financial year the contribution is expected to be £875 million (2013-2014). An important aspect of the BRS is that the rate increase was supported by businesses on the expectation of positive returns. In addition to the BRS, the Community Infrastructure Levy (CIL) was introduced in April 2012 as a levy on all new developments in London.