Under the proposals London would be given complete control over property taxes, including council tax, stamp duty and business rates. The London Finance Commission report also recommended giving the city the power to introduce new taxes, such as a levy on tourists, and greater freedom to borrow.
Mr Johnson said there was an "acute need for London to be able to better plan and finance the infrastructure needed to prosper and maintain a great quality of life, in the face of a decade of expansion".
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John, who began running for Age UK back in the 1980s when he was aged 53, has raised an incredible amount since then - more than £40,000.
It was Tom's second marathon in two weeks run in memory of his father, Martin Campbell.
Surrey Police are appealing for witnesses after the driver was seriously injured in the crash in the early hours of Saturday.