Local authorities are hoping they can retain half of this revenue to reinvest in their boroughs Sign up to Simon Calder’s free travel email for expert advice and money-saving discounts Get Simon Calder’s Travel email Get Simon Calder’s Travel email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice A tourist tax in London could generate more than £350m in revenue for the capital, a new report has found. The UK government