Rachel Reeves is said to be seriously considering a mansion tax to fill an estimated £40 billion budget black hole and appease the left of the Labour Party Sign up to our free Brexit newsletter for our analysis of the continuing impact of Brexit on the UK Sign up to our free newsletter for the latest analysis on Brexit's impact Sign up to our free newsletter for the latest analysis on Brexit's impact Email * SIGN UP I would like to be emailed about offers, events and updates from The