Before the vote, with campaigning in full swing, the British Treasury had estimated that an exit from the EU would cost the country the equivalent of 4,300 pounds ($5,900) per household. Tax receipts would face a 30 billion pounds shortfall that would have to be filled with tax increases on income and inheritance. House prices, the Treasury had said, could be as much as 18 percent lower by 2018 than if the country hadn't left the EU.